Front Cover
 Table of Contents
 Report by the dean for researc...
 Selected research accomplishme...
 Changes in faculty
 Research administration
 Campus research programs
 Research and education centers
 Back Cover

Florida Agricultural Experiment Station Annual Report
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00008296/00001
 Material Information
Title: Florida Agricultural Experiment Station Annual Report
Alternate title: Annual research report of the Florida Agricultural Experiment Station, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, Florida
Research report
Physical Description: v. : ; 28 cm.
Language: English
Creator: University of Florida -- Agricultural Experiment Station
Publisher: University of Florida
Place of Publication: Gainesville Fla
Creation Date: 1993
Frequency: annual
Subjects / Keywords: Food -- Research -- Periodicals -- Florida   ( lcsh )
Agriculture -- Periodicals -- Florida   ( lcsh )
Agriculture -- Research -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
serial   ( sobekcm )
Numbering Peculiarities: Fiscal year ends June 30.
General Note: Description based on: 1987; title from cover.
 Record Information
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 20304921
lccn - sn 92011064
System ID: UF00008296:00001
 Related Items
Preceded by: Annual research report of the Institute of Food and Agricultural Sciences, University of Florida, Gainesville, Florida

Table of Contents
    Front Cover
        Front cover
    Table of Contents
        Page i
        Page ii
    Report by the dean for research
        Page 1
    Selected research accomplishments
        Page 2
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
        Page 8
        Page 9
        Page 10
        Page 11
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        Page 16
        Page 17
        Page 18
        Page 19
        Page 20
        Page 21
        Page 22
        Page 23
    Changes in faculty
        Page 24
    Research administration
        Page 25
        Page 26
    Campus research programs
        Page 27
        Page 28
        Page 29
        Page 30
        Page 31
        Page 32
        Page 33
        Page 34
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        Page 36
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        Page 95
        Page 96
        Page 97
        Page 98
        Page 99
        Page 100
        Page 101
        Page 102
    Research and education centers
        Page 103
        Page 104
        Page 105
        Page 106
        Page 107
        Page 108
        Page 109
        Page 110
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        Page 148
        Page 149
    Back Cover
        Back cover
Full Text

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Contents mAs5i4

Contents i

REPORT BY THE DEAN FOR RESEARCH .... ................. ............. ULai. lg g ...- .....- .. .. 1

CHANGES IN FACULTY ........ .... 24

RESEA RCH ADM IN ISTRATIO N .. ............ .. ......... ...... .............. .............. ................. ..... 25

Institute of Food and Agricultural Sciences ........ ............ ..... .......... ........ .... ... .. .. 25
Florida Agricultural Experiment Station ..... ............ ...... -... ........ .. ... ... ...... .. . .. 25
Center for Cooperative AgrculturalProgra ms FAMU ................ ............ ......... ... .25
Center for Aquatic Plants ............. ........... .. .......... ... ........... ...... ..... 25
Center for Natural Resource Programs....... ............. .......... ..... .. ....... ..... ..........25
Biom ass Energy System s .......... .. .......... .. ...... ....... ...............- ... ........... .. 25

CAM PUS RESEARCH PROGRAM S ........................... ........... ........... ........ .... ...... ........ .. 27

Agriculture Engineering
Agronomy...... ..............
Animal Science........

Dairy Science ..... .... ................ .
Entomology and Nematology ..........
Environmental Horticulture ........ .....
Fisheries and Aquatic Sciences...........
Food and Resource Economa cs ......

Food Science and Human Nutrition
Forestry, School of Forest Resources
4-H and Other Youth Programs .....
Home Economics ............... ... ...
Horticultural Sciences ..........
Microbiology and Cell Science ..
Plant Pathology ..... .. ........
Poultry Science ......... ..
Soil and Water Science .. .
Statistics ....... .. .. ........ ... .... ..
Wildlife and Range Sciences ........
College of Veternary Medicine....


and Conservation ..
.. ... ....... .. ..
......... .....
.. ..........

........+ .+ .. .

ERS . ..

REC Ft, Pierce ......... .. ..............
REC H astings, ...... ... .... ....... .. .......

EDITOR, John T. Neilson

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+ + + +:

ii Contents

REC Jay ....... --..-- .- -
REC Ona .......... -- ..... .
Brooksville SubtropicalAticuiural l*earch Station .
Central Florida REC Apopka, Leesburg, Sanford ....
Citrus REC Lake Alfraed ,... ..... ........... -
Everglades REC Belle Glade ............. ... .. .. ......
Florida Medical Entomology Lab Vero Beach ... ..
Ft Lauderdale REC Ft Lauderdale ..... .... ....
Gulf Coast REC Bradenton, Dover .. ...................
North Florida REC Quincy, Marianna and Monticello
Southwest Florida REC Immokalee ......... ... .. .
Tropical REC Homestead .. ........ .. ........... -.

....... 07

. ... 149

DIRECTOR'S FINANCIAL REPORT .... ...........- --- ......... ........ ... ........

........ .... ..

I . .. ............ .. .

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........._. :

The 1990's continue to be years of change, opportunity,
and challenges for Florida agriculture, the University
of orida, and the Institute of Food and Agricultural
Sciences (IFAS). As the national and State's economies
began to recover, so did the expectations of our diverse
clientele. A sense of optimism began to return as the
Florida Agricultural Experiment Station faculty and staff
authorizations stabilized after several years of reductions.
However, 1992-93 was also the year of Hurricane Andrew
which swept ashore on August 24, 1992. This massive
hurricane brought economic and environmental destruc-
tion totaling $25 billion. The economy and social
structure of South Florida was dramatically changed in one
six-hour period. Southern Florida vegetable and tropical
fruit industries were particularly hard hit through the loss
of many seasonal crops and the permanent loss of many
perennial crops. The Tropical Research and Education
Center (TREC) at Homestead, Florida sustained over
$1.8 million in building damage The visual spectacle of
the hurricane's fury and its destruction was chronicled for
the nation by the news media. One of the untold stories
was the tremendous outpouring of support by our faculty
and staff to help the citizens of South Florida cope with the
physical destruction and the resulting human misery. By
end of 1993, life has returned to a semblance of normalcy
and repairs at the TREC were scheduled for completion by
January, 1994. South Florida agriculture is also rapidly
recovering with new opportunities and challenges
Several changes in chairs and directors occurred since the
last report. Dr. Terril Nell was named as the Chair of the
Environmental Horticulture Department; Dr. Jerry
Bennett was named Chair of the Agronomy Department;
Dr. Cheng-I Wet was named Interim Chair of the Food
Science and Human Nutrition Department, pending the
arrival of Dr. Doug Archer in January, 1994; Dr. Pat
Werner was named Chair of the Wildlife and Range
Sciences Department; Dr. Otto Loewer was named Chair
of the Agricultural Engineering Department; Dr. Wallace
Clark was selected as the new Chair of the Fisheries and
Aquatic Sciences Department; Dr. Loukas Arvanitis was
appointed Interm Director of the School of Forest
Resources and Conservation and the Intenm Chair of the
Forestry Department; Dr. Bo Beaulieu was appointed
Interim Director of the 4-H and Other Youth Programs
Department; Dr Herb Bryan was appointed Acting
Director of the Tropical Research and Education Center at
Homestead and Dr James M. Davidson was appointed as
the Vice President for Agriculture and Natural Resources.
Several organizational changes include the consolidation
of the Departments of Vegetable Crops and Fruit Crops
into the Department of Horticultural Sciences under the
leadership of Dr Dan Cancliffe; the consolidation of the
Departments of Dairy and Poultry Science into the
Department of Dairy and Poultry Science under the
leadership of Dr Roger Natzke; and the division of the
School of Forest Resources and Conservation into the
Department of Wildlife and Range Sciences and the

1993 Report by the Dean for Research 1

School of Forest Resources and Conservation.
Since the last Annual Report, construction of the
Envirotron was completed and dedicated. This Envirotron
facility was constructed by funds contributed by the Florida
Turfgrass Growers Association and matching funds from
the State of Florida. Construction was begun on the new
Microbiology Building to be located on the western side
of campus near the new Entomology and Nematology
Florida agriculture continues to experience the pressures of
increased urbanization, reflected by the fact that four of the
top five agricultural counties (accounting for over one
third of the State's $6.1 billion total cash receipts) are also
counties with the highest populations. In order to address
production and pest management issues, agricultural
expermentation is simultaneously addressing surface and
ground water quality, water conservation, pesticide fate
and movement, fertility management, cultural and waste
management practices, wildlife compatibility, as well as the
policy implications of the research. Because of the
problem solving nature of our organization, both new and
previous clientele are turning to the Experiment Station
for solutions to social, nutritional, and family concerns
of our state. Increasingly, our scientists are forming
multidisciplinary teams to develop information to address
these issues and challenges.
The recognition by the University of Florida and UF/IFAS
of the changes in both our clientele and their expectations
has resulted in the initiation of a strategic planning effort
during 1993 This effort has the active participation and
support of the University and UF/IFAS leadership and is
designed to provide a framework and direction for service
to the agriculture industry, the urban populace and natural
resources of Florida
Research completed by the Florida Agricultural Experi
ment Station, UF/IFAS, is published in scientific journals,
bulletins, circulars, books and conference proceedings.
Our scientists also participate in field days, short courses,
conferences, and other public informational programs to
acquaint producers and consumers with recent research
findings as well as new research directions The 1993
Annual Report includes a brief summary of selected
research programs, a list of faculty, publications, title of
current research projects and a brief financial report. This
report is not intended to be a detailed description of all
research underway in the Florida Agricultural Experiment
Station, but rather to summarize selected areas and to
identify those faculty conducting that research.

Joseph C. Joyce
Interim Dean for Research and Director Florida
Agricultural Experiment Station
University of Florida

2 1993 Selected Research Accomplishments


Investigation of Potentially Pathogenic
Parasites Infecting Angel Fish
Angel fish are an extremely popular freshwater tropical fish
maintained as pets by many aquarium hobbyists around the
world. Angel fish are grown in large numbers on tropical
fish arms in Florida. A parasite commonly found in the
intestines of these fish has been associated with loss of
condition, mortality following shipping and handling, and
poor survival of the offspring of infected adults. A coop-
erative investigation between researchers at the University
of Flonda and the University of Maryland at College Park
has resulted m an improved understanding of the parasite's
taxonomy, ability to cause disease, and response to
treatment. Changes in management with regard to
parasite control on Florida's tropical fish farms have
resulted i improved quality of animals from Florida,
improved reproduction, and substantial decrease in
mortality of angel fish following shipping.
Departments of Large Animal Clinical Sciences and
Fisheries and Aquatic Sciences
Ruth Francis-Floyd, Associate Professor

Global Population Structure of Striped Mullet
In collaboration with researchers at the Universty of
Rome, Italy, and the University of Georgia, we have been
investigating the genetic relationships and similarities of
stped mullet populations on a global basis, using bio-
chemical (allozymes) and molecular mitochondriall DNA)
genetic markers. The work is motivated by two concerns:
(1) questions regarding the genetic conspecificity of
globally isolated populations; and (2) the fact that the
species is rapidly being developed for aquaculture, particu-
larly in third world countries, making it desirable to have
genetic information on population sources and transfers.
Results completed to date indicate that globally disjunct
populations from throughout the range of the species are
differentiated genetically at a level most often associated
with geographic races or taxonomically recognized subspe-
cies. Within any particular region where the distribution
of the species is continuous, populations appear to repre-
sent a single gene pool. These results confirm previous
speculations regarding the unique population structure of
Mugil cepahlus. although this marine species has a world-
wide distribution with no apparent physical barriers to
gene flow, the species is highly differentiated genetically
into isolated groups of populations.
Department of Fisheries and Aquatic Sciences
Donald E. Campton, Associate Professor

Aquaculture of Gulf of Mexico Sturgeon
Sturgeons belong to an ancient group offish with a long
evolutionary history beginning approximately 250 million
years ago. Sturgeons were a valuable sport and commercial
fish in the countries of the Northern Hemisphere. The
fish provided a highly valuable commercial fishery because
of the excellent quality of its flesh for fresh or smoked food,
and of its roe for caviar. Historically, however, the
sturgeon fishery has been one of demise and
overexploitation worldwide. By the turn of the century,
most commercially important fisheries were closed and
many stocks were considered extirpated. The Gulf of
Mexico sturgeon is one of these species. In 1991, the Fish
and Wildlife Service and the National Marine Fisheries
Service listed the species as threatened under the Endan-
gered Species Act. In our laboratory, we have engaged in
developing and improving hatchery and culture technology
of sturgeon fish for the purpose of restocking depleted
natural stocks and commercial food production. In
collaboration with a private, nonprofit organization and
the U.S. Fish & Wildlife Service, we have concentrated
initially on the Gulf of Mexico sturgeon, a species native
to Flonda waters and abundant in the Suwannee River
Our team of investigators has found it possible to collect
and properly select brood stock sturgeon in the wild. We
artificially induced Gulf sturgeon to spawn and successfully
incubated and hatched the eggs. We also were successful
in feeding the young larvae live feeds and weaned them
into commercially formulated diets. Currently, we have 3-,
2-, and 1-year-old fish bred in captivity. For the purpose of
evaluating a sg a stock program from animals raised in
captivity, we released 1,200 fish into the wild. After a
period of 6 months, 25 fish (or 2.1%) have been recap-
tured The preliminary observations indicated that
sturgeon released from hatcheries have a high probably
of survival in the wild.
We continue to develop and improve techniques for the
artificial rearing of sturgeon fish. Our work will result in a
product essential for conservation of a sturgeon resource,
development of a sturgeon fishery and, possibly, commer-
ciahlzation of valuable aquaculture products.
Department of Fisheries and Aquatic Sciences
Frank A Chapman, Assistant Professor

Vitamin E Benefits the Immune Response of
Commercial Egg-type Leghorn Pullets
The ability to enhance an animal's resistance and immune
response to a disease challenge would help the animal cope
with the challenge more effectively Interdepartmental
research between the Poultry Science Department and the
Veterinary College has centered on the interrelationship
between nutrition and immunity in poultry

1993 Selected Research Accomplishments 3

In an 18-week experiment, egg-type pullets 7-18 weeks of
age were fed diets with 5, 25, or 50 International Units
(IU) of vitamin E (alpha tocopherol acetate). Levels of 10,
50, or 100 IU were fed during the first 7 weeks. Concen-
trations of antibodies developed against specific antigens
were greater in the blood of pullets receiving high levels of
vitamin E in the diet. Performance, as measured by feed
conversion, also favored the pullets receiving diets
supplemented with high levels of vitamin E.
The tracheal lesions observed following the intratracheal
administration of a live bronchitis ield virus were less
severe n birds that had been fed higher levels of vitamin E.
This research indicates that poultry will respond positively
to high-level vitamin E supplementation, which may be
extremely important when they are under stress.
Department of Poultry Science
R. D Miles, Professor
Department of Large Animal Clnical Sciences
G. D Butcher, Associate Professor

Form of Dietary Protein Affects Ovarian
Activity in Lactating Dairy Cows
Dietary protein sources differ in their digestibility by
microorganisms in the stomach of the dairy cow. Some are
digested extensively and rapidly (e.g., soybean meal),
whereas others (e.g., animal and fish byproducts) are
relatively undigested by the bacteria. Feeding highly
digestible protein feedstuffs often generates large amounts
of ammonia, which the cow must detoxify before excreting
Is it possible that this detoxification process can interfere
with the cow's normal efforts to conceive and bear young?
IFAS researchers, working with lactating dairy cows during
the early postpartum period when the cows are restarting
their estrous cycles, have found that feeding very digestible
protein has a negative influence on reproduction. Cows
fed soybean meal and urea took about 2 weeks longer to
start their estrous cycles after calving, compared with other
cows fed protein of lower digestibility (animal byproducts)
Indeed, some cows refused to cycle 7 weeks after giving
birth. A longer delay in returning to normal estrous cycles
can result in delayed pregnancy and loss of profit. Feeding
too much rapidly degradable protein can aggravate the
energy status of cows, resulting in greater body weight loss.
Therefore, dairy managers must ensure that the diet
contains both highly and moderately digestible protein for
the stomach bacEena.
Department of Dairy Science
Charlie R Staples, Associate Professor and William W.
Thatcher, Graduate Research Professor
Department of Large Animal Clinical Sciences
Carlos A Risco, Assistant Professor

Dietary Help for Late Pregnant Dairy Cows at
Risk for Milk Fever
Because of increased demand for calcium for milk synthesis
at the time of calving, abnormally low blood calcium can
cause metabolic disorders. Specifically, clinical milk fever,
which has a 5%-10% incidence in Florida and the United
States, and subclhncal hypocalcemia, which has a 50%-
65% incidence, occur when cows are in their second
lactations, or later. Hypocalcemia also results in a postpar-
tum disease complex contributing to retained fetal mem-
branes, displacement of the abomasum, off-feed syndrome,
reduced milk yield, and decreased reproductive perfor-
mance. The disease complex reduces production efficiency
and profitability.
Research from the Dairy Science and Lqrge Animal
Clinical Sciences team, as well as from other research
stations in the United States, has developed a specific
ration formulation strategy to help alleviate the disease
complex. Chlorine and sulfate concentrations in the diet
are increased relative to sodium and potassium. This alters
the cow's acid-base balance and stimulates the mobiliza-
tion of calcium from body stores into the blood, sigrnfi-
cantly reducing the incidence of milk fever and subchnical
hypocalcemia The team conducted several research
projects at campus facilities and on commercial dairy farms
to develop and prove the formulation strategy. The
strategy has been implemented successfully in a number of
dairies in Florida and other states. It has helped reduce
hypocalcemia and the postpartum disease complex. Expert
ration formulation and feeding management are needed to
realize benefits from the formulation strategy.
Dairy Science Department
David K Beede, Professor
Department of Large Animal Clinical Sciences
G. Arthur Donovan, Associate Professor and Carlos A.
Risco, Assistant Professor

Serodiagnosis of Respiratory Mycoplasmosis in
Mycopiasma galbsepacum (MG) is an important cause of
respiratory infections i poultry The disease is controlled
in the broiler industry by serological monitoring of flocks.
We compared hemagglutinaton (HI) and a new affinity-
purified, enzyme-lnked immunosorbant assay (ELISA) for
use as confirmatory tests for the National Poultry Improve-
ment Program (NPIP) To determine the prevalence of
disease in the exhibition birds tested, Florida was divided
into three regions-northern, central, and southern The
overall prevalence of MG infection was approximately
40%. The proportion of negative and positive samples was
not statistically significant among the regions. The
southern region did have a higher number of discrepancies
between the confirmatory tests than the other regions
ELISA was more accurate than HI for confirming MG

4 1993 Selected Research Accomplishments

infection in the exhibition bird population. In birds
experimentally infected with MG, there were no
differences between HI and ELISA results.
Mycoplasma synovae (MS) infection was identified in a
commercial flock. In the initial MS outbreak, there was no
statistically significant difference in the results of HI and
ELISA when used as confirmatory tests in flocks confirmed
positive by culture. In the second outbreak, ELISA was
superior to the SPA and HI for detection of MS infection
in flocks confirmed positive by polymerase-chain reaction
Results from this study showed there were no differences
between ELISA and HI as confirmatory tests in popula-
tions with a low prevalence of MG infection. ELISA was
superior in a population with moderate levels of MG
infection. SPA antigens were not adequate for detecting
MS infection in flocks confirmed positive by PCR. It may
be necessary to change the traditional NPIP protocols to
detect MS infection.
Department of Infectious Diseases
M. B. Brown, Associate Professor

Successful Yearling Breeding Programs
Developing heifers to be successfully bred as yearlings can
be a costly undertaking. In a 3-year study with heifers
grazing bahiagrass pasture over the winter feeding period,
we have found that feeding a molasses-based natural
protein slurry with ammoniated hay improves heifers' rate
of gain more than molasses only and ammoniated hay or
molasses-natural protein and untreated hay. Heifers fed
the molasses-naural protein and ammoniated hay gained
about 0.7 lbs/day from weaning to breeding This can be
an economical feeding program for heifers weighing more
than 550 [bs at weaning. In this same study, we found that
feeding heifers a molasses-4.5% urea supplement not only
resulted in more variable weight gain but also depressed
pregnancy rates by about half, compared with rates
obtained with the natural protein supplements. This new
information will help producers select the most appropriate
feeding program to successfully breed heifers as yearlings.
Ona Research and Education Center
L. M. Rutter, Assistant Professor

Summer Legumes for Flatwoods Pastures
In nitial screening trials, a number of tropical legumes
have shown potential to enhance forage quality and add
nitrogen to flatwoods pastures through biological nitrogen
fixation. Recent evaluations of the establishment potential
and competitive ability of selected legumes in bahtagrass
pastures indicate a variety of responses by varous legumes.
The standard for comparison, "Florida" carpon desmodium,
can establish under favorable moisture and grazing
conditions with only minimal sod disturbance, such as
roller chopping Similar establishment potential was

indicated for a number of additional Desmodaum
heterocarpon genotypes as well as a seed-propagated
perennial peanut, an Aeschynomene species, the recently
released cultivar "Savanna" stylo, and the Australian
cultivar "Shaw" creeping vigna. Others, such as Zonmu
laufolia, may require a better seedbed for acceptable
establishment. A prepared seedbed apparently is more
appropriate for the seed-propagated perennial peanut.
Since individual plants spread slowly and seed are not
dispersed, it is important to obtain a good stand initially.
Stands of the other legumes, which established with
minimal seedbed preparation, can improve over time if
given an opportunity to produce seed. In addition, Shaw
creeping vigna can spread vegetatively because of a viny
growth habit. Both Shaw creeping vigna and the seed-
propagated perennial peanut have demonstrated excellent
persistence in bahiagrass pacuret. Both of these legumes
provide higher forage quality than Florida carpon
desmodium and greater persistence than the aeschynomene
currently available. New pasture legumes, which have the
potential to establish readily in existing grass sod with
minimal seedbed preparation, and also can improve forage
quahty and/or stand persistence over currently available
cultivars, provide opportunities to increase beef production
and profitability with minimal additional investment
Ona Research and Education Center
W. D. Pitman, Associate Professor
Ft. Pierce Research and Education Center
A. E. Kretschmer, Jr., Professor

Clover Production in Subtropical Florida
In recent years, white and red clover production in
subtropical Florida has declined nearly to the point of
nonexistence Twenty to thirty years ago, white clover
blanketed several hundred thousand acres of central
Florida. Now, however, it is rare to observe white clover
growing in association with tropical perennial grasses
Suggested reasons for the decrease in clover have ranged
from lack of pasture irrigation to insufficient fertilizer
application. Research conducted over a 3-year period with
and without methyl bromide indicated some biological
factor in the soil was responsible for the poor white clover
production Plots not treated with mechyl bromide
contained 800% more root knot and cyst nematodes than
what is normally considered high. Forage production of
both white and red clover was 200%-300% higher on the
treated plots than on the untreated plots. The clover on
the treated area continued to grow 30-60 days longer into
the warm season than that on the untreated plots.
This work suggests the need for nematode-resistant clover
cultivars or perennial grasses that do not support these
Ona Research and Education Center
P. Mislevy, Professor

1993 Selected Research Accomplishments


Improvement of Water Management
Techniques for Vegetables
Irrigation is essential for economic production of vegetable
crops m Florida. Yet, as a result of water demands by
several user groups, water available to agricultural produc-
ers is becoming limited and highly regulated. This means
that high levels of water management must become a
priority for continued and sustainable economic produc-
non. Conservative irrigation must include selection of an
appropriate irrigation system, efficient design and installa-
tion, aggressive water management, user education, and
motivation. The two most conservative systems for
irrigation of vegetables in southwest Florida are the fully
enclosed subirrgation (FESI) system and the drip irrigation
system. Controlled water table levels of 18, 24, and 30
inches were evaluated using the FESI system for green
pepper and tomato production. Lower controlled water
table levels require reduced irrigation inputs, increase the
effectiveness of rainfall, and reduce the leaching potential
of existing fertilizers. The water requirements of drip.
irrigated tomatoes and strawberries have been determined
and incorporated into irrganon scheduling guidelines.
Controlled drip irrigation for watermelon production was
evaluated using three different water levels to estimate
optimal scheduling levels. Municipal solid waste compost
(MSWC) was incorporated as a soil amendment for drip-
rrigated green peppers and tomatoes. The MSWC was
evaluated with different levels of irrigation and fertility
control to determine the potential for water and fertilizer
conservation in drip-irrigated vegetable production.
Finally, sprinklers with smaller nozzles were placed on
existing sprinkler systems and evaluated for their ability to
reduce water application during the establishment of
fruiting strawberry plants.
Gulf Coast Research &. Education Center Bradenton
G. A Clark, Associate Professor and C. D Stanley,
Associate Professor

Environmental Decision Support Systems
Applications of new technology to facilitate the use of
models in management and decision-making processes is a
new focus of research in the Agricultural Engineering and
Food and Resource Economics Departments. A regional
planning decision support system structured around a
geographic information system was recently completed
with assistance from the South Florida Water Management
District LOADSS (Lake Okeechobee Agricultural
Decision Support System) will aid in determining the
phosphorus loads reaching Lake Okeechobee from each
subbasin of its watershed when specific management
practices are applied to each land use in the basin. The
system was developed using a geographic information
system (Arc/Info) and expert systems tools, coupled with

the CREAMS-WT and FHANTM hydrologic/water
quality models developed in our research program.
CREAMS-WT and FHANTM are used within LOADSS
to provide field-scale water and phosphorus loads for
regional planning. Interactive preprocessors and graphical
postprocessors were developed to facilitate the input of
extensive data into the models and to present model
output in an easily interpreted form for more effective
planning on a basin and regional scale Appropriate
economic and physical data have been gathered from the
literature as well as from governmental agencies, individu-
als, and organizations to provide the information needed
for LOADSS The LOADSS system incorporates informa-
tion on land uses, soil associations, weather regions,
management practices, hydrologic features, and political
boundaries for about 1.5 million acres of land and consists
of about 7,000 polygons in Arc/Info coverages. It runs on
a SUN SPARCstaton and is completely mouse- and
Department of Agricultural Engineering
J. W. Jones, Professor
Department of Food and Resource Economics
K. L. Campbell, Professor and W. G. Boggess, Professor

Reclaimed Water for Citrus Irrigation Water
Conserv II
Water usage and demand in Florida have been increasing
steadily. Water is no longer abundant, and restrictions on
the use of available groundwater for agriculture are
becoming more severe. Recycling agricultural water and
treated municipal wastewater is an option for increasing
water supplies for citrus Lrrigation. One successful
reclaimed water project that has operated for over 6 years
is called Conserv II. This project, the largest of its type
in the world, currently trrigates more than 4,000 acres of
citrus west of Orlando. The reclaimed wacer is highly
treated and chlorinated so that it has no color or odor and
is free of virus and conform bacteria. In addition to normal
irrigation, this water also is used for freeze protection.
Water is provided to the grower at no cost and at adequate
pressure for irrgation The system provides a dependable
long-term water source for citrus grower subscrbers.
Research has been conducted over the past 6 years to
evaluate the effects of Conserv II water on citrus, focusing
specifically on mineral element levels in the soil profile,
leaf mineral concentration, tree growth, tree performance,
weed growth, and fruit quality.
Additional research has measured the effects of high
amounts of reclaimed water on the growth and perfor-
mance of young citrus trees The research site is a deep,
well-drained sand capable of accepting large amounts of
water without flooding. Hamlin orange, a processing juice
fruit, and Orlando tangelo, a fresh fruit variety, were grown
on four rootstocks Reclaimed water was applied m even
amounts approximately every other day to provide either

6 1993 Selected Research Accomplishments

16, 50, or 100 inches of water every year. Well water at 16
acre mches was included as a control.
Early results indicate that young trees grew more as more
reclaimed water was applied. Canopy volume, yield, and
pounds of juice solids per acre all increased significantly
with greater water application. At the 100-inch rate,
canopy volume was 45%-75% greater and yield was 39%-
71% greater than at the 16-inch rate. With the higher
irrigation rate, soluble solids in the juice were diluted, but
the greater fruit yield more than compensated for this
dilution effect. Hence, total pounds of solids produced per
acre were greater at the higher irrigation rates.
Leaf mineral content was affected by the reclaimed water,
scion variety, and rootstock. Levels of some elements were
increased, but none of the elements reached excessively
high levels. Leaf phosphorous, calcium, chloride, and
boron levels increased significantly with reclaimed water
applications. Compared to the well water treatment, all
the reclaimed water treatments had higher C1 and B
levels. Even though leaf B was elevated, concentration
levels m 1992 remained similar to those seen in 1991 and
are in the optimum range.
Conserv II reclaimed water can provide sufficient Ca, P,
and B to meet the nutritional requirements of the trees.
Although the reclaimed water contains some nitrogen and
potassium, levels of leaf N and K were not always increased
even at the 100-inch application rate. Soils irrigated with
Conserv water had a higher pH and higher phosphorous,
calcium, iron, and sodium levels, but reclaimed water
cannot meet all the nutritional requirements of the trees.
Fertilizer application is still needed
Citrus trees on well-drained soil have responded well to
high levels of reclaimed irrigation water Weed pressure
increased with the higher irrigation rate, but this was easily
controlled. No disease problems or mineral toxicittes were
found with high applications of this water. Reclaimed
water from the Conserv 1I project provides a win-win
situation that as environmentally sound and benefits both
city dwellers and growers. The Conserv 1 project has been
a success and serves as the premier example of water reuse
for irrigation.
Citrus Research and Education Center Lake Alfred
L.R. Parsons, Professor and T.A. Wheaton, Professor

Citrus Harvesting and Quality
Citrus harvesting costs can equal or exceed other produc-
tion costs and the quality of harvested citrus fruit contin-
ues to be an industry concern. The CREC initiated a
research program in 1992-93, funded by the FDOC, to
survey harvesting methods and their effect on the quality
of fresh and processed fruit.
The practice of dropping fruit from the tree onto the
ground before placing it into a bag, used by many pro-
cessed-fruit harvesting crews working in tall trees, was

compared to that of picking fruit into a bag Depending on
grove conditions, pickers spent 70%-83% of their time
picking fruit and climbing or moving their ladders with
either harvest method. Dropping fruit on the ground
decreased its freshness by increasing abrasive peel damage,
weight loss, and respiration, and by increasing decay levels
threefold, according to evaluations conducted after 2- and
4-week storage periods. Fruit dropped on the ground also
had a higher trash content than fruit picked into a bag, as
well as twice the defects and surface microflora and three
times the surface sand.
Limited data also were collected on two harvest aids, the
New Way Loader and the Harvest Systems Ltd. pan
machine. These aids provide fruit handing and storage
without the use of conventional fruit containers by moving
through the grove with a six- to eight-person crew of
pickers. They were mainly used with young, low-yielding
trees m bedded groves. With either aid, pickers were able
to spend more than 90% of their time harvesting fruit.
The main advantage of these aids over conventional
systems appears to be a reduction of nonproductive time
and effort spent by pickers in carrying fruit to containers in
young, low-ytelding trees Although these aids have been
used primarily in harvesting fruit for processing, they also
have been shown to improve the quality of fresh fruit. In
samples of Valencia oranges taken from storage hoppers,
fruit quality was comparable to that of conventionally
harvested fruit picked into a bag and pallet bin for the
fresh market.
Citrus Research and Education Center Lake Alfred
J.D. Whitney, Professor, W.M. Miller, Professor, J K.
Burns, Associate Professor,
M E Parish, Associate Professor, and W.F. Wardowski,

Gainesville NHRA Raceway Water
Reclamation Project
During the past year, a 2-year study to evaluate a waste-
water treatment facility was completed. The facility was
designed not only to treat effluent but also to use created
effluent for fish production. The system worked extremely
well. All parameters including nitrogen, phosphorous, and
total suspended solids were reduced, surpassing regulatory
standards. Grass carp grown in the system grew well. Fish
from this species were used because they could be fed
directly from vegetation grown in the system and could be
grown for vegetation control rather than for human
consumption. Because the system was inexpensive to
construct, easy to operate, and efficient, it should be useful
in areas where it is too costly to construct and operate
conventional treatment facilities.
Department of Fisheries and Aquatic Sciences
Jerome V. Shireman, Professor

1993 Selected Research Accomplishments 7


Peeling and Processing of Food Products
The extensive coastline of Florida may encourage the
farming of shrimp, clams, scallops, and other aquanc
products. Currently, most of these commodities are
imported from Asian countries because of the need for
manual processing.
The University of Florida received US Patent No.
5,046,411 for a peeling device that uses a methodology of
low-pressure steam immediately followed by a specific
vacuum Shrimp treated in this manner are peeled and de-
veined in one operation, which also may reduce detrimen-
tal bacterial contamination. On an idustrial scale, this
new technology may encourage economically warranted
shrimp farming at selected coastal areas.
Other products suited for peeling include citrus fruit,
tomatoes, peaches, and potatoes This patented process
enhances product quality, reduces product losses, and
limits the volume of process waste streams.
Department of Agronomy
Ferdinand le Grand, Associate Professor

Improvement of Serum Cholesterol Levels with
Low-Fat Diet
A 6-month dietary trial was conducted with postmeno-
pausal women who were hypercholesterolemic, but
otherwise healthy. Those in the "treatment group"
consumed a low-fat diet (one containing <30% of the
calories as fat), in which about 15% of the calories were
from oleic acid, a monounsaturated fatty acid. The
subjects received monthly information sessions with tips
on how to adhere to a healthy low-fat diet. The olec acid
incorporated into their daily diets was mostly in the form
of "high oleic" peanuts supplied by the Agronomy Depart-
ment. The amount and composition of dietary fat were
favorably altered in the majority of the treatment group; in
the compliant group, serum cholesterol levels were
significantly decreased without a detrimental effect on
high density ipoprotein (HDL) cholesterol levels. The
high oleic diet caused no adverse effects. The oleic acid
content of the subjects' low density ipoprotein (LDL)
increased. This change is considered desirable, since it
may result in decreased susceptibility to lipid peroxidation.
Oxidized LDL is thought to be the culprit in the develop-
ment of atherosclerosis and measures to reduce the amount
of oxidized LDL eventually may help reduce this disease
process. This dietary study indicates that free-living hyper-
cholesterolemic individuals can safely reduce their serum
cholesterol levels with a healthy diet if they are highly
motivated and given sufficient and proper instruction.
Department of Food Science and Human Nutrition
Rachel M Shireman, Professor

Improved Estimates of Fish and Shellfish
Consumption in Florida
Concerns regarding chemical, bacterial, and viral
contamination in seafood have promoted interest in
obtaining more accurate estimates of seafood consumption
to evaluate potential toxicological effects. The Florida
Agricultural Market Research Center began a study in
1992 that will provide improved estimates of per capital
seafood consumption by various population subgroups in
Florida. A statewide telephone survey of nearly 9,000
households will provide new insights into the types and
quantities of seafood eaten by respective households.
Further, face-to-face interviews of primary seafood
preparers in 500 low-income households will be conducted
in food stamp distribution centers to provide similar
information for this population subgroup,
The improved seafood consumption estimates will be
useful not only to toxicologists but to nutritonists and
marketers of seafood products as well.
Department of Food and Resource Economics
Robert Degner, Professor

New Roles for Copper in Immunity
New roles for copper are being explored in the Food
Science and Human Nutrition Department Although
copper has been known to be an essential nutrient since
1928, not all of the reasons for its importance are under-
stood. Moreover, there is no effective way to measure
copper status in humans or animals to determine whether
their diets are supplying adequate amounts of the nutrient.
One of the signs of copper deficiency is neutropenia, or low
circulating levels of a type of white blood cell. Percival
and colleagues are exploring the role of copper n the
development and function of these immune cells. Recent
findings indicate that as these white cells mature, they
have almost twice as much copper as do immature cells.
This copper is not utilied for two of the more well known
copper-requirng enzymes, Cu/Zn-superoxide dismutase
and cytochrome coxidase Instead, it appears that the
copper is used in another larger, as yet unidentphed
protein. Learning about this protein and what tt does will
provide clues to the functions of this immune cell and the
role copper plays in health. Furthermore, it may give rise
to a sensitive and specific evaluation of copper status that
can be used to assess populations at risk. These may
include farm animals grazing on copper-poor soils, or
human populations, such as the elderly, that may not be
consuming adequate diets.
Department of Food Science and Human Nutrition
Susan S Percival Assistant Professor

8 1993 Selected Research Accomplishments

Effect of Zinc Intake Level on Folic Acid
Utilization in Human Subjects
Impaired absorption of folic acid polyglutamate, but not
folic acid monoglucamate, has been demonstrated in
experimentally-mduced severe zinc deficiency. However,
the effect of zinc intake on folate utilization has not been
ivestigated m subjects whose diets contain zinc levels
more characteristic of diets consumed i the United States.
To examine the effect of zinc intake level on the utiliza-
tion of folic acid monoglutamate, 12 men were fed either a
diet low In zinc, or the same diet to which enough zinc
was added to meet the subjects' Recommended Dietary
Allowance for zinc. The subjects received 800 micro-
grams/d of a labeled form of folic acid monoglutamate.
By using a labeled form of folic acid, researchers in the
Department of Food Science and Human Nutrition were
able to determine whether there were differences in fohc
acid utilization when subjects consumed different amounts
of zinc.
Based on blood and urine levels of folate, the researchers
were unable to detect significant differences in supplemen-
tal folic acid utilization between subjects consuming the
low-zinc diet and those consuming the diet containing the
recommended level of zinc. These data suggest that folic
acid supplements may be effectively utilized by individuals
consuming diets that are either low or adequate in zinc.
Department of Food Science and Human Nutrition
Gail P.A. Kauwell, Assistant Professor


Fundamental Research in Forest Biology
At a time when national and global emphasis on forest
ecosystem management has increased, support for basic
research in forest biology has decreased. Federal and
industrial investment i forestry research has declined over
the past two decades. Forest productivity must be in-
creased to compete in a global economy, given new
environmental pressures and a shrinking land base. Basic
research is needed to increase our knowledge of the
mechanisms and processes that drive tree growth and forest
productivity. Cost-effective forest management can be
enhanced through the application of basic biological
principles based on sound fundamental research.
The University of Florida, the U. S. Forest Service, and the
forest industry have formed a Partnership for Fundamental
Research in Forest Biology. State and federal agencies
provide fixed costs for scientists' salaries and research
facilities, and the industry contributes much-needed
flexible operation dollars to fund projects of mutual
interest. The Partnership provides a forum among state,
federal, and industry scientists and research administrators
to discuss and implement research on basic mechanisms
and processes. Pine genotypes with different water and

nutrent relationship patterns, carbon assimilation and
allocation, and disease resistance have been identified and
the basic mechanisms and processes, including genetic
controls, are being investigated using new biotechnologies.
Department of Forestry
R. A. Schmids, Professor

Disease-Resistant Trees Provide Forest
Managers with New Tool
Periodic outbreaks of the fungus-caused disease known as
"pitch canker" can inhibit tree growth and reduce product
value in several economically important southern pine
species. Once a disease outbreak has occurred, control
options are relatively limited, can be costly, and may
interfere with other management objectives If foresters
could use genetically disease-resistant trees when reforest-
ing high-risk areas, they could reduce the likelihood of
future disease outbreaks. This economical, environmen-
tally sound approach to disease management is very
desirable, especially in view of the long rotation cycle of
forest stands. Unfortunately, few forest tree species have
developed resistance to one or more diseases.
Building on prior success i identifying genetic-based pitch
canker resistance in slash pine, the Integrated Forest Pest
Management Co-op has recently concluded an 8-vear
research project to evaluate pitch canker resistance n
loblolly pine. Significant genetic-based resistance has been
detected in loblolly pine and has been found to be highly
heritable. That is, disease resistance characteristics are
readily transferred from parent to offspring, thus providing
impetus for future genetic improvement through standard
breeding and biotechnological approaches. In the mean-
time, the identification of loblolly pine families with
enhanced pitch canker resistance offers forest managers
a new tool for the management of pitch canker i
high-risk areas.
Department of Forestry
G. M. Blakeslee, Associate Professor


Eliminating Mole Cricket Damage
The mole cricket is the most important turfgrass and
pasture pest in Florida. Attempts to manage this pest in
the most economical, environmentally safe manner focus
on biological control, the use of imported natural enemies
of the mole cricket. Ormra depleta, the "Brazilian red-eyed
fly," is one of the most successful introductions. IFAS
research and extension personnel have successfully
established this cricket-killing fly in over 30 Florida
counties. Once it is established, its services are free.
Department of Entomology and Nematology
1. Howard Frank, Professor

1993 Selected Research Accomplishments

Protecting Peanuts from Root-knot Nematodes
Peanuts are a valuable crop in some north Florida counties,
but production can be severely limited by root-knot
nematodes, which damage peanut roots. Although the loss
of pesticide registrations threatens the continued produc-
tion of peanuts, some soils seem to remain free of nema-
tode problems. It has been determined that the basis for
these nematode-resistant soils is the fungus Pasteuia
penerrans. It seems feasible to distribute this fungus to
other soils, thereby imparting soil resistance to nematode
populations, however, our inability to culture the fungus
has made this impossible thus far. A recent breakthrough
in identifying new hosts of the fungus may greatly simplify
the process of fungus production and biological suppression
of root-knot nematodes.
Department of Entomology and Nematology
Don W. Dickson, Professor

Genetic Improvement of Beneficial Arthropods
Often it is necessary to improve upon the traits of benefi-
cial insects and mites, species that can be used to control
pest species, to enhance speedy rearing, to expand host
range, or to enable these arthropods to withstand hostile
environments Classic approaches involve random
mutation and selective breeding, but these limit creative
opportunities. Recently, we were able to demonstrate that
micronjection of DNA into maternal tissues can result in
scabletransformation of arthropods. This discovery opens
the door to injection of all sorts of foreign genetic material
and the creation of "designer bugs" for better biological
pest control.
Department of Entomology and Nematology
Marjone A. Hoy, Eminent Scholar

Identifying "Killer Bees"
Aggressive Africanized bees, also sometimes called "killer
bees," have invaded the United States. Although their
range is still limited to Texas, it is certain that eventually
they will spread across the South. The beekeeping industry
in Florida, important both for honey production and for
fruit and vegetable pollination, is severely threatened by
these dangerous bees that look like domestic breeds. How
can beekeepers maintain the integrity of their colonies and
avoid the invasion of this dangerous breed? The first step
is accurate identification of the invading African strain.
This has been accomplished using DNA technology to
distinguish among harmless European bees, dangerous
African bees, and even their hybrids
Department of Entomology and Nemarology
H Glenn Hall, Associate Professor

Managing Insecticide Resistance
Insecticide failures are an increasingly common phenom-
enon in Florida. The diamondback moth, a cabbage pest,
is a good example of how serious insecticide resistance, and
subsequent insecticide failures, can be in Florida's environ-
ment. The diamondback moth's resistance to common
organophosphate pest control chemicals such as
chlorpyrifos, methyl parathion, malathion,
methamidophos, and diazinon is 20- to 70-fold higher in
regularly sprayed fields in Hastings, Florida, than in
unsprayed fields. For carbamate insecticides, the resistance
level is increased 400- to 500-fold. For pyrethroid insect-
cides, currently very popular with growers, resistance
ranges from 2,100- to 82,000-fold! Educating growers in
such resistance management techniques as alternating
chemicals and reducing dependency on chemicals will do
much to limit accumulated resistance in Florida's insect
populations. Without effective resistance management,
crop production is seriously jeopardized.
Department of Entomology and Nematology
Simon J. Yu, Professor

Photodegradation of Paraquat When Applied to
Polyethylene Mulch
A common practice i the production of crops grown with
polyethylene mulch is applying the mulch film 2 or more
weeks before transplanting During this rime, weeds
emerge and grow Broadcast applications of paraquat are
made to the polyethylene film and uncovered middles of
rows before planting to kill emerged weeds and/or the
previous crop. Transplanting the new crop often begins
within 24 hours after paraquat application
Many agricultural chemicals are broken down by sunlght,
primarily from the ultraviolet portion of the spectrum.
Although early reports indicated that paraquat decomposi-
tion occurred 48-96 hours after exposure to continuous
ultraviolet light in a laboratory, more recent research
conducted by our team under field conditions demon-
strated that complete photodegradation took more than
144 hours when paraquat was applied to black or white
polyethylene film mulch in August. Additionally, tomato
plants sustained substantial injury when residual paraquat
was rinsed off mulch film up to 120 hours after application
and the rinse water was applied to the plants. These results
demonstrated that damage observed in commercial tomato
fields probably resulted from contact with residual paraquat
on mulch film.
Recognizing that temperature and ultraviolet radiation
levels are different for each season, we conducted addi-
tional research to determine how application season (and
typical radiation level) affected the photodegradacion rate
of residual paraquat on black and white mulch films. We
found that paraquat broke down more slowly on black

10 1993 Selected Research Accomplishments

mulch film in April and June, whereas more paraquat was
present on white polyethylene when applied in September
and December. When averaged over both colors of mulch
him, residual paraquat concentrations were highest i
December and lowest in September, whereas concentra-
tions were intermediate in April and June. Thus, in
situations where paraquat might contact polyethylene
mulch, growers should wait a minimum of 5 days after
applying paraquat before transplanting sensitive crops like
tomatoes. Since the length of this waiting period vanes
with time of year and mulch color, growers should exercise
greater care during winter months and may need to
increase delay time.
Gulf Coast Research & Education Center Bradenton
J. P. Gilreath, Associate Professor
Department of Statistics
J. A. Cornell, Professor

Biological Control of Twospotted Spider Mite
on Commercial Strawberries
During the past 5 years we have found that releases of the
predatory mite Phytoseiulus persmnlis can successfully
control twospotted spider mites in commercial strawberry
crops. Most recently, we have learned that predators can
be effectively established in a field by uniformly releasing
about 20,000 predators per acre when the twospotted
spider mite population begins to increase. Within 1 to
several weeks after release, predators may be found in
nearby fields or even across roads. This dispersal can be
caused by adults walking long distances immediately after
release; by any motile form walking short distances; and by
the very young being carried long distances by wind.
Agricultural chemicals remain critical to strawberry culture
and often are required prior to predator release. We have
found that certain agricultural chemicals (not all of which
are registered currently for use on strawberry crops) can be
used until the day of release without detriment to preda-
tors. These chemicals include Bacillus thungiensis, captain
O5W, wetable sulfur, isecticidal soap, and fenbutatin
oxide (Vendex). Abamectn (Agrt-Mek), mevmphos
(Phosdrin), diazinon, spray oil, and azadirachtin (an Azatn
form of neem seed extract) can be used until about 2-4
days prior to release. A wait of approximately 5 days may
be required for malathion, a longer wait for methomyl
(Lannate). Pyrethroids are not safe to use with this
predator. Precise determination of prerelease periods and
of potential compatibility withestablished predators will
depend not only on the nature of the agricultural chemical
but also on the thoroughness of spray coverage on leaves.
Gulf Coast Research & Education Center Bradenton
James F Price, Associate Professor, and Marinus van de
Vrie, Visiting Research Scientist

Termite Baits Containing Hexaflumuron, a
Chitin Synthesis Inhibitor, Reduced or
Eliminated Subterranean Termite Populations
A baiting procedure that incorporated a matrix containing
hexaflumuron, a chtin synthesis inhibitor, was evaluated
against field colonies of the eastern subterranean termite,
Reicditzermes flavipes (Kollar), and the Formosan subterra-
nean termite, Coptotmers formosanus Shiraki. First,
wooden stakes were driven into soil to detect the presence
of termites. Bait tubes then were placed in soil where
termites were detected. A "self-recruiting" procedure,
through which termites collected from wooden stakes were
forced to tunnel through the matrix in the bait tubes,
significantly increased termites' bait intake. Approximately
4-1,500 mg of hexaflumuron was needed for 90%-100%
reduction of field populations containing 0.17-2.8 million
foragers per colony.
Ft. Lauderdale Research and Education Center
Nan-Yao Su, Associate Professor

Long-Term Control of Purple Nutsedge
Purple nutsedge is considered one of the world's worst
weeds. This plant pest, which infests numerous crops, can
flourish under a wide range of climatic conditions. Recent
research has shown that herbicides from the Lmidazolinone
family (imazaquin and AC 263,222) provide good to
excellent control of this species in peanut crops during,
and possibly beyond, the application season. Purple
nutsedge tubers, reproductive organs of this weed, were
found to be fewer in number and lower in viability in areas
treated with imidazolmone. Studies conducted the year
following application indicated that although the herbi-
cides had dissipated to nondetectable levels, fewer nut-
sedge plants were observed in the treated plots. Other
herbicides used for nucsedge control do not provide this
type of long-term control
Research and Education Center Jay
Barry J Brecke, Associate Professor

Monitoring for Plum Curculio
Plum curculo is a key pest affecting such deciduous fruit as
peach and apple on the East Coast from Florida to Canada
Present monitoring methods are inadequate and inefficient
for obtaining phenological information about the occur-
rence and abundance of this pest In orchards. Such data
are required to improve decision making and timing of
control methods.
A group of entomologists, including Dan Horton from the
University of Georgia at Athens, W. Louis Tedders and
Carroll Younce from the USDA Southeastern Tree Fruit
and Nut Laboratory at Byron, Georgia, and Russ Mizell
from IFAS, have collaborated In a very successful project

1993 Selected Research Accomplishments

that culminated in the development of an efficient
monitoring method for plum curculto. The new method
incorporates a dark-colored masonite trap that is not only
inexpensive to construct and easy to use but also very
effective. Using this new method, growers across the
eastern United States will be able to monitor for the
presence and number of plum curculio populations in fruit
orchards. The trap also has many other research applica-
tions and is being used in ongoing research to develop new
biological information as well as suppression methods for
this fruit pest.
North Florida Research and Education Center -
Dr. Russell F Mizell, III, Professor

Look-alike Malaria Mosquitoes Are Genetically
A major obstacle to malaria control in South America is
the inability to separate mosquitoes that are transmitters of
the disease from related noncamers by standard morpho-
logical criteria. Our team of NIH-supported investigators,
working at the Florida Medical Entomology Laboratory
and the USDA's Medical and Veterinary Research
Entomology Laboratory, has shown that cryptic mosquito
species may be distinguished by DNA fingerprints, protein
polymorphisms, and new combinations of morphological
characters. One coastal and one inland South American
malaria carrier, formerly characterized as one species, are
now defined as complexes of two or more related, but
genetically distinct, species. These distinctions may
indicate regional differences in ability to transmit malaria.
Our project has also used species-specific DNA to con-
struct squash-blot probes that someday may supplant
unrehable morphological methods for field identification of
malaria vectors. These same look-alike mosquito species
are also highly differentiated ecologically and phystologi-
cally. For example, mating males of some species inject a
substance that triggers female egg development; however,
this male influence on female reproduction is absent in
closely related species.
Florida Medical Entomology Laboratory Vero Beach
L. P. Lountbos, Associate Professor

Using Horticultural Methods to Protect Young
Citrus Trees from Subterranean Termite
The eastern subterranean termite Rencuhtermes flavpes
(Koller) has caused extensive losses In localized areas of
young citrus in southwest Florida by grdling trees between
the crown roots and the planted soil line. nsecticide
applications have been found to deter termites for only a
few months; in general, granular formulations have been
most effective Termites will not venture far from the
protection of moist soil and attack primarily the trunk

cambium below the soil line, not the roots Consequently,
shallow planting and/or soil removal have been found to be
effective controls. Removing the soil around affected trees
to expose the tops of the crown roots almost always has
arrested termite attack, allowing the trees to recover,
Shallow planting does not slow cree growth.
Southwest Florida Research and Education Center -
R. E. Rouse, Associate Professor and P A. Stansly,
Associate Professor


Enhancing the Safety of Shellfish Products
New information about the safety of edible shellfish is
being produced in the Department of Home Economics
Vbrio are bacteria that naturally inhabit the warm waters
of the world for instance, Florida's shellfish-growing
estuaries. Vzbno vulnificus, a species not normally harmful
to humans, can cause serious disease in persons with
underlying illnesses such as lver disease, cancer, AIDS,
hemochromarosis, and diabetes. To understand which
levels of V. vulficus are safe, researchers have conducted a
nationwide seasonal study to determine levels of V.
vulnficus in edible shellfish. Results of this study, in which
more than 20 U.S. researchers collaborated, show that the
highest numbers of V. vulntfcus occur in the Gulf of
Mexico and m southern Atlantic waters. An important
benefit of this research is a more complete understanding
of which levels of V vulnificus should be considered
harmful to humans.
Shellfish research also examines ways to remove another
Vibno bacterium, Vibno cholere, from oysters. A cholera
epidemic that appeared recently in the Americas, the first
in more than 100 years, now threatens the safety of
Florida's seafood products Researchers found that V
cholera is not completely purged from oysters treated with
a commercial process called "deputation Results of this
work will offer state and federal regulatory agencies
information about the length of time oysters should be
depurated before being considered safe Researchers also
have developed a rapid test that allows shellfish to be
inspected for V cholera in less than one day
Department of Home Economics
Mark L. Tampin, Associate Professor

Freshwater Mussels and Pollution
Freshwater mussels represent an important ecological and
commercial resource. Because of their widespread distribu-
tion, they also characterize many freshwater systems The
juveniles, or glocidia, of these mussels are very sensItive
indicators of environmental pollution. This laboratory has
developed a method for the in vitro culture of Anodontm
imbecihs glocidia. Testing techniques to assess the acute

12 1993 Selected Research Accomplishments

effects of pesticides on the sensitive life stages of this
mussel have been developed for the U.S. Environmental
Protection Agency's Ecological Effects Branch Office of
Pesticide Programs. The techniques developed test mussels
in early life stages: mature glocidia, recently transformed
juvendles, and older juveniles. Three of the most com-
monly used pesticides were used to evaluate the acute
sensitivity of these juveniles.
Department of Microbiology and Cell Science
S. G. Zam, Associate Professor

Bacterial and Viral Pathogens in Water
Our laboratory has been involved in two main areas of
research: producing filters capable of inactivating and/or
removing bacterial and viral pathogens from water, and
developing improved methods to detect viruses in
wastewater sludge.
We have found it possible to modify common filtering
matenals such as sand and diatomaceous earth by coating
them with different compounds. In several studies,
modified filters were found to remove more bacteria,
viruses, and protozoa from water than unmodified filters.
In some cases, the microorganisms were not only removed
by the modified filters but inactivated. It is hoped that the
modified filters will be effective as point-of-use filters for
water treatment.
Since sewage sludge may contain viruses and other
pathogens, sensitive tests are required to detect these
microorganisms. We have developed procedures capable of
recovering both bacterial and human viruses from sludge,
and are studying the survival of these viruses in sludge
undergoing different treatments.
Department of Microbiology and Cell Science
S. R. Farrah, Associate Professor

Regulation of Fungal Response to
Environmental Substances and Conditions
Fungi, among the most pervasive pests in Florida, can
cause problems every month of the year. Their spores are
cared by air currents or water and most grow optimally in
humid climates in a temperature range of 40-90F. The
filamentous fungi appear as highly branched threads
forming a mesh that invades their host and reduces it to a
discolored pulp through enzymic digestion. Fungi are
tremendously adaptable to a wide range of nutritional and
environmental conditions. This ability resides in an
information transduction system that senses the presence
and concentrations of substances in the organisms'
immediate environment. Although this system is poorly
understood, it is believed that the species and activities of
enzymes secreted depends on the concentrations of
multiple substances in the fungus' environment The
substances and their concentrations are detected by a series

of receptor proteins believed to be anchored to the
membrane encircling the cytoplasm. These receptor
proteins on the outer surface of the cell wall are attached
to the membrane through a lpo-polysaccharde, which is
thought to be connected to the membrane through a lipid.
The complex polysaccharide attached to the lipid spans
the cell wall immediately outside the membrane. This
laboratory is investigating the biochemical events that
occur as a common fungus of the genus Pencidlum encoun-
ter various nutritional and environmental conditions.
Department of Microbiology and Cell Science
J. E. Gander, Professor

Bacterial Plant Pathogens Causing Soft Rot
Erwinia chrysanthemi is a bacterial plant pathogen that
causes soft rot of plant tissues, contributing to significant
loss of several agricultural commodities. We have been
characterizing the tissue macerating enzymes secreted by
different strains of E. chrysandhemr, with the goal of
identifying enzymes important to the pathogenic process.
We have established that the pectate lyases, the most
important activities involved i the maceration process,
represent a battery of enzymes (PLa, PLb, PLc, and PLe)
that exhibit three distinct depolymertzaton mechanisms
We also have demonstrated that oligogalacturonates
dimerss and trimers) that are too small to serve as sub-
strates for these enzymes inhibit the pectate depolymernza-
tion process. X-ray crystallographic evidence discovered by
California researchers has established that PLc includes a
left-handed I-helix as a previously unrecognized secondary
structure. In a collaborative effort with this group, we have
prepared oligogalacturonates. These will be used, as in the
co-crystallization of the pectate lyases, to identify actve
sites in these enzymes and to determine the role of the
p-helix motif in the depolymerzation process. The
ohlgogalacturonate inhibtors may prove useful in
controlling the processes associated with infection by
phytopathogenic stramis of Erwvua spp.
Department of Microbiology and Cell Science
J. F. Preston, Professor

Genetic Basis for Immunity to Bacterial
Diseases, Including Citrus Canker Disease
A rarely attainable goal of plant breeding is to find
resistance (R) genes that provide immunity to all strams or
races of a pathogen. With bacterial blight of cotton,
caused by Xanthomonas malvacearum, breeders achieved
that goal for all known American strains of the pathogen.
Recently, we determined the genetic basis of this breeding
achievement, a discovery that may allow plant genetic
engineers to achieve more general success in disease
immunity. Immunity in cotton depends upon a few unusual
R genes. We have identified these R genes and determined
that they act against multiple pathogen target genes, called

1993 Selected Research Accomplishments 13

avirulence (avr) genes. Furthermore, some of the avr gene
targets are pathogenicity genes, indispensable for the
virulence of the bacteria carrying them,
Such is the case for the recently cloned and characterized
gene pthA, essential for the virulence of X. am and all
other agents capable of causing citrus canker disease. The
DNA sequence of this gene revealed that it s essential to
the development of citrus canker disease and also that it ts
recognized as an avr gene target by some of the unusual R
genes responsible for immune cotton lines. Therefore, the
cotton R genes that provide immunity against all Amen-
can strains of cotton blight are priority candidates for
cloning and transfer to citrus and other plant genera,
where they should provide immunity against all forms of
citrus canker disease
Department of Plant Pathology
D. W, Gabriel, Associate Professor

Antigenic Characterization of Proteins
Encoded by Potyviruses that Affect Cucurbits
Several aphid-borne poryviruses, including papaya rngspot
virus type W, cause considerable annual loss in squash,
watermelon, and other cucurbit crops i Florida Antise-
rum to a protein ("P" protein) encoded by this virus was
prepared and used in serological testing against a panel of
potyviruses isolated previously from cucurbits The results
indicate that the serological tests may help to detect
variation among certain strains of papaya rngspot virus
type W, and to distinguish this virus from other potyviruses
known to affect cucurbits n Florida. This information
could be useful in virus diagnosis and in the development
of appropriate measures to control this virus.
Department of Plant Pathology
Ernest Hiebert, Professor and Dan E. Purcifull, Professor

Advances in the Management of Tomato
Mottle Geminivirus in Tomatoes
The tomato mottle virus (TMoV) is currently the most
important virus in Florida tomatoes Tomato mottle virus
is transmitted by the sweetpotato whitefly, Bemisra tabac,
Biotype B. It infects tomato and tomatillo but has not
been found in any other crops in Florida. Although
tomato mottle virus occurs throughout the state, it is most
often found in the southern vegetable production areas
(Manatee, Hilisborough, Palm Beach, Collier, Lee,
Hendry, and Dade counties). The highest rates of TMoV
seen early in the season are usually in new tomatoes
planted near or downwind of old tomato fields. Aban-
doned tomato fields have high whitefly populations and
high rates of TMV infection. Under these conditions,
infection rates as high as 100% may be observed in newly
planted fields. More commonly, TMoV incidence is low
(less than 1%) at the beginning of the season These

relatively low rates of infection are due in part to the use of
pesticides to control the whitefly vector. Resistant
cultivars, which would decrease dependence on pesticides
for virus control, are being developed through conven-
tional and molecular approaches.
Gulf Coast Research & Education Center Bradenton
J E. Polston, Asst. Professor and D. J. Schuster, Professor


Impact of Hydrilla Life Cycle on the
Mode-of-Action of Fluridone
Hydrilla (Hydnlla vermadata (L f.) Royle) is an exotic
submersed aquatic macrophyte that infests fresh water
ecosystems throughout the world and is currently Florda's
most serious aquatic weed problem. Hydrilla possesses
unique photosynthetic characteristics, such as a C4
metabolism and a low light compensation point, that allow
it to compete more successfully than other aquatic macro-
phytes. In addition, hydrlla can reproduce through the
formation of tubers that accumulate in the hydrosoi
Fluridone is the most effective herbicide used i Florida for
the control of hydrlla. Unfortunately, fludone provides
only short-term control of hvdrlla, making annual
application necessary. The prmary reason for repeated
application is the regrowth caused by dormant tubers not
affected by flundone Effective long-term control can be
achieved only by developing a method to deplete tubers in
the hydrosoil.
Hydnlla's response to flurdone depends on the stage of
plant development at the time of treatment. During the
vegetative growth period that lasts from spring to summer,
hydrilla rapidly produces large amounts of shoot tissue.
Consequently, areas infested with hydrlla usually are
treated in the spring During this period, hydrilla shoot
tissue is very susceptible to flundone because of a high
demand for new pigments used in photosynthesis,
Flundone prevents pigment formation and, therefore,
Hydrlla reproduces by producing tubers during the fall,
when shoot growth is extremely slow The demand for
pigments is low during the reproductive cycle because
tubers do not contain these pigments and shoot growth is
minimal. Consequently, during the reproductive cycle
shoot tissue is less susceptible to flurdone, even though
pigment production is blocked. However, these pigments
also are needed in extremely small amounts to produce
abscisic acid, a plant hormone thought to be involved in
tuber formation,
Research was conducted under controlled conditions to
determine the effects of flurdone on shoot growth and
reproduction Young hydlla plants (simulating spring

1993 Selected Research Accomplishments

growth) and mature hydrilla plants (simulating all growth)
were exposed to 0.05, 0.5, 5, or 50 ppb flundone while
growing under short-day conditions (to induce reproduc-
non). Fluridone at 5 and 50 ppb virtually eliminated
hydrlla reproduction. Shoot growth in young hydilla also
was inhibited by these concentrations of fluridone, while
shoot growth in mature hydrlla was not affected.
Therefore, fall flurdone treatments could be used to block
hydrlla reproduction, even though shoot tissue would
show minimal response to the treatment at this time.
Treating hydrilla in the fall over several years could
deplete tuber numbers in the hydrosoil, reducing the
plant's density. Research conducted in the Withlacoochee
River has shown that repeated fall treatments with
flundone decreased the density of hydrlla. Detailed
studies are underway to further evaluate the impact of the
timing of flundone treatment on long-tenn hydrilla
Department of Agronomy
W. T. Haller, Professor and D. G. Shilling, Associate

The Role of Dissolved Organic Carbon in
Spodosol Genesis
The terrestrial fate of dissolved organic carbon (DOC) has
become a matter of environmental concern in recent years,
since it relates to global carbon cycling and in some cases
may influence the transport of organic pollutants. Carbon
is sequestered in subsurface (spodic) horizons of some
Flonda soils (spodosols). One stage in the genesis of these
soils apparently involves a reaction of natural humic
substances with the cementing component of sand-grain
coatings, although the threshold conditions initiating the
reaction are unknown. We found that sandy soils occurring
at different points along a landscape (toposequence)
differed markedly in their susceptibility to stripping by
oxalic acid (a surrogate root exudate). Soils on excessively
drained upper slopes were quite resistant to stripping even
at high oxalic acid concentrations (pH buffered at 4),
whereas soils on lower slope positions adjacent to spodosols
along a lake margin showed visible stripping at low
concentrations. This correspondence between relative
coating stability and moisture gradient along the landscape
suggested a redox-controlled differentiation involving Fe.
Another experiment also implicated Fe as the critical
binding component for grain coatings. One-hour incuba-
tions of sands at a range of oxalic acid concentrations
showed that Fe in solution increased relative to Al at
oxalic acid levels for which grain stripping became evident.
Department of Soil and Water Science
Willie G. Harrs, Associate Professor

Soil Management of Histosols
Soil management of histosols is of increasing environmen-
tal concern in the Everglades Agricultural Area (EAA) in
south Florida as well as in the vegetable growing area north
of Lake Apopka. Development of useful fertilizer manage-
ment strategies based on sod testing was a major focus of
efforts in 1992. The resulting extension circular is a
departure from more traditional formats in that the basis
for fertilizer recommendations has been well documented
by an extensive literature review. Newly acquired field
data also were included, further substantiating these
recommendations. Similar documents have been started
for other vegetables produced on histosols, forages, and
citrus. Work with growers in the Lake Apopka region has
included selected field demonstrations, soil and tissue
testing to help growers make informed decisions on
fertilizer management, and cooperative efforts with the
Soil Conservation Service to improve water management
on farms for efficient phosphorus use. One grower who has
completely converted his operations based on these new
management strategies has been farming successfully for 3
years with greatly reduced fertilizer costs and no loss in
vegetable production or quality.
Department of Soil and Water Sciences
E. A. Hanlon, Associate Professor

Remediation of Soils Contaminated by
Coal Tar
Laboratory studies and computer models are used to
examine the dynamics of organic contaminant release from
complex wastes. Major factors limiting the contaminant
release rates have been characterized in batch and column
studies, and these data were used to develop and evaluate
simulation models. These data and model predictions then
were used to assist industrial and regulatory agency
personnel m assessing the risks of groundwater contamna-
tion at waste disposal sites, and the potential for successful
remediation of contaminated sods
Department of Soil and Water Sciences
P.S.C. Rao, Graduate Research Professor

Wetlands Water Quality
Major research in this program was conducted on water
quality problems associated with wetlands in Lake
Okeechobee Basmi, the Everglades, and Lake Apopka
Basin. Some of the results are listed below
* Studies on Lake Apopka showed that the bottom
sediments are providing 95% of the nutrient require-
ments of algae, suggesting that short-term reduction in
external nutrient loads may not improve the lake's
hypereutrophic status significantly.

1993 Selected Research Accomplishments 15

* Studies on Lake Okeechobee sediments revealed
significant variability in phosphorus retention and
release by sediments. Internal phosphorus loads in the
lake were approximately equal to external loads to the
Studies in the Water Conservation Area 2a (WCA2a)
of the Everglades showed significant gradient in
nutrient accumulation in the soil as a result of external
loadings, with a high phosphorus concentration at the
inflow structure and decreased concentrations with
distance from inflow.
Studies on wetlands in Lake Okeechobee Basin
showed that retention was related to soil physico-
chemical properties.
Results of studies conducted in this program were used by
the South Florida Water Management District and the St.
Johns River Water Management District to develop
management strategies to protect these water bodies. The
nutrient accumulation rates measured in WCA2a were the
key data used in settling a lawsuit between federal and state
agencies. Some of the results obtained in this program
have been used to design large-scale constructed wetlands,
such as the one near Lake Apopka and those near the
Department of Soil and Water Sciences
K. Ramesh Reddy, Graduate Research Professor

Evaluating the Effects of Nitrogen Rates and
Sources on Water Quality
Concern over increasing nitrate levels in groundwater has
generated recent evaluations. When there is too much
nitrogen in groundwater, the potential for health hazards
to both animals and humans exists. Nitrogen leaching is of
special concern in Florida because much of the state
consists of sandy soils that receive high rainfall These
conditions promote nitrogen leaching.
The fertilization practices of Florida ranchers have been
thought to be a major source of groundwater pollution.
Until recently, however, no studies have been conducted
to determine how much nitrogen actually is being leached
into the groundwater from fertilized pastures.
The Ona REC has been reevaluating the nitrogen pasture
fertilizer recommendations for pasture grasses and studying
the effects of this fertilizer on groundwater. Preliminary
results from greenhouse and field experiments indicate that
up to 150 lbs of nterogen/A can be used to fertilize
bahagrass with causing gout causg groundwater pollution. Regard-
less of the nitrogen source used (ammonium nitrate or
ammonium sulfate) or the sampling time involved, nitrate
levels in groundwater were below the 10 ppm standard for
drinking water set by the EPA One of the reasons very
little nitrogen leaches into groundwater under bahiagrass
pastures is that this grass has a very high nitrogen recovery

rate. Studies also are underway to reexamine the nitrogen
recommendations for this grass.
Ona Research and Education Center
J. E Rechcigl, Associate Professor

Micropropagation of Native Wetland Plants
Used for Environmental Restoration
Only since the early 1970s have wetlands been valued as
areas that enhance water quality, recharge groundwater,
retam stormwater, and provide unique wildlife habitat
Federal and state regulations now require the revegetation
or replacement of damaged or destroyed wetlands This
has significantly increased the market demand for wetland
plants. Most wetland plant species used for wetland
revegetation projects are either collected from donor
wetland sites for planting elsewhere or produced in
environmental horticulture nurseries. Increased demand
for wetland plants has led to overcollection and subsequent
environmental damage to these donor sites Consequently,
the environmental horticulture industry must develop
more efficient and environmentally sound nursery propaga-
tion procedures to meet this increased demand. One
alternate source of wetland plants is tissue culture propaga-
tion (micropropagatnon), the rapid production of plants
cultured under sterile conditions. A research team in the
Environmental Horticulture Department has successfully
developed procedures to rapidly produce several native
wetland plant species.
During the summer of 1992, this research team planted
more than 3,500 micropropagated wetland plants in a
constructed wetland in central Florida. The team exam-
ined the effects of genotype, planting elevation, and
density on the survival and growth of micropropagated and
field collected plants. This field study was critical for
evaluating the environmental and commercial viability of
this method for wetland plant production. The
micropropagated wetland plants exhibited 100% survival,
superior growth, and flowering and produced abundant
seed during the first growing season. Similar responses
have been observed during the growing season in the
second year These results demonstrate that
micropropagation technology could provide an efficient
and environmentally sound method to meet increasing
market demand for plants used in habitat restoration This
technology should further facilitate production of wetland
plants that are rare, endangered, or difficult to propagate,
and selection of elite clonal lines exhibiting superior
growth, enhanced nutrient uptake, or stress tolerance.
Department of Environmental Horticulture
Michael E. Kane, Associate Professor

16 1993 Selected Research Accomplishments

Enhancing Water Allocation with Improved
Appropriator Organizations
Conditions are ripe in Florida for rent-seeking behavior,
illegal withdrawal, sabotage and, ultimately, damage to
sections of the groundwater aquifer through saltwater
intrusion and other occurrences. The way individuals and
organizations attain and retain access to this common pool
resource and the way transfers are handled appear to be
detrimental to the long-term sustamability of the aquifer
system. Research has demonstrated an apparent incompat-
ibiltty between the working rules established by the 1972
Florida Water Resources Act and the common pool
properties of the aquifer. Forming appropriator organiza-
tons to oversee subbasins of the aquifer could alleviate the
problem. Such organizations would be more capable of
recognizing the common pool features of the aquifer,
developing ways of sharing the resource, and faciitating
mutually beneficial water trading transactions. This
research effort applies concepts from institutional and
political economics to designing improvements for water
use allocation and efficiency.
Department of Food and Resource Economics
Gary D. Lynne, Professor


Effects of Climate Change and Carbon Dioxide
on Crop Production
In addition to normal uncertainties about weather, the
world community faces rising atmospheric carbon dioxide
(CO,) levels and anticipated temperature increases of
about 3-4C (5-7F). Researchers in Agronomy and Agri-
cultural Engneering are evaluating the effects of elevated
CO2 and increased temperature on nee, soybean, wheat,
and forage crop yields, both in sunlit, controlled environ-
ment chambers and in temperature-gradient greenhouses.
The research team includes L. H. Allen, Jr. (USDA), J. T.
Baker (Agronomy), K. J. Boote (Agronomy), J. W. Jones
(Agr. Engineering), N. B. Pickering (Agr. Engineering), T.
R. Sinclair (USDA), and J. C. V. Vu (USDA) The sunlit,
controlled environment chambers allow precise control of
C02 and temperature conditions throughout the crop life
cycle as well as a complete record of photosynthesis,
evapotranspiration, and crop respiration. Experiments
have shown that a doubling of CO, increases the seed yield
of these crops about 30%-35%. On the other hand,
substantial yield reductions are obtained as temperature is
increased above the 25C (77F) daily mean temperature.
Florida's mean summer temperature is already 1-2C (1.8-
3.6F) higher. Rice yield, for example, is reduced about
10% for each 1C increase above the 25C mean tempera-
ture. Results indicate yield reduction is caused by failures
m grain formation and growth, rather than by any major

effect of increased temperature on vegetative growth.
Researchers working with other temperate food crops find
elevated temperature causes similar effects. Results of
these studies have important implications for global food
production in a world anticipating climate change.
Department of Agronomy
K. J. Boote, Professor

Interactions between Nucleus and Cytoplasm
in Higher Plants
Cytoplasmically inherited male sterility (CMS) is the basis
of F1 hybrid seed production in many crops. Sterility is
suppressed in the F1 hybrids by appropriate nuclear fertility
restoration genes. CMS systems are also an important
model for investigating the molecular and genetic interac-
tions of mitochondrial and nuclear genomes. Expression of
a CMS-associaced region i the mitochondrial genome of
common bean (Phaseolus vugans) was studied at the RNA
level. The effect of a nuclear fertility restoration gene on
expression was also studied. This work demonstrated RNA
transcripts that were not colnear with their DNA tem-
plates. This finding implicates an RNA splicing process i
the expression of the CMS-associated region and opens
new avenues of investigation into CMS mechanisms.
Decreased levels of CMS-unique RNA transcripts were
found in lines carrying Fr2, a fertility restoration gene
This is the first molecular difference found in Fr2-restored
lines. Molecular characterization of CMS and fertility
restoration systems ultimately will enable us to improve or
create new systems in common bean and other crop
Department of Horticultural Sciences
Christine D. Chase, Associate Professor

Genetic Basis of Reduced Seed Vigor in
Supersweet Sweet Corns Identified
Supersweet sweet corns are making dramatic inroads into
sweet corn production, especially in the state of Florida.
However, the widespread use of these corns is hampered by
low seed vigor. Recently, the genetic basis of this low
vigor was established. By using sophisticated chromosomes
and exploiting their abnormal behavior i corn, it was
possible to create seeds with a mutant endosperm but a
genetically normal embryo. These seeds germinated just as
poorly as seeds containing a mutant embryo. This shows
that seed vigor is caused by the mutant condition during
seed development and is not related to the genotype of the
resulting plant. These data also suggest that the mutant
condition is due to the large sugar buildup during seed
development, which causes membrane damage. This
insight can lead to some possible solutions.
Department of Horticultural Sciences
L. C. Hannah, Professor, D. R. McCarty, Associate
Professor and D J. Cantlffe, Professor

1993 Selected Research Accomplishments 17

Biological Control Methods for Weeds
Herbicides represent the single greatest use of pesticides in
American agriculture. Efforts to reduce the amounts of
herbicides used i vegetable production are important to
the overall goal of reducing growers' reliance on chemicals
in the production of Florida's food supply One method of
accomplishing this goal is the use of plant pathogens as
biological herbicides,
Two weeds currently being studied are purple and yellow
nutsedge. Both are troublesome not only in Florida but in
many other countries around the world. Two pathogens
have been identified with potential to help control these
problem weeds. A patent soon will be issued for Curvulana
lunata var aena, which controls both purple and yellow
nursedge. Research is ongoing to determine how much
growers may benefit by using this organism.
The second pathogen, isolated a number of years ago by
Dr. Ed Freeman in the Plant Pathology Department, is
called Scleronm. A major problem with the use of this
pathogen is how to apply the moculum to achieve maxi-
mum effectiveness without causing disease in crop plants.
Current research is aimed at applying the fungal noculum
to the larvae of a moth that attacks only sedge plants.
These larvae then will carry the hitchhiking fungus to the
nutsedge plants. Researchers from the Entomology
Department also are cooperating in this project.
Another way to reduce chemical usage is to use the natural
defense systems that protect some plants against others
Some plants produce natural chemicals called
allelochemicals that adversely affect the growth of other
plants. For example, leaf extracts from a wild relative of
the tomato have been shown to inhibit germination and
early seedling growth in a number of troublesome weeds.
Researchers are currently studying ways to help growers
exploit this phenomenon.
Department of Horticultural Sciences
T. A. Bewick, Associate Professor

Postproduction Handling of Flowering Potted
Consumers seek long-lasting, flowering potted plants of
high quality for personal use, or for use as gifts and tokens
of special recognition. Until recently, limited information
was available for commercial production or consumer care
of flowering plants. The University of Florida/IFAS
postproduction handling program has developed guidelines
that extend the lives of numerous flowering plants by 7-14
days or more. For instance, the longevity of potted
chrysanthemums can be more than doubled (increased
from 13 to 28 days) under standard home environmental
conditions by selecting the proper culnvar or reducing
fertilizer rates. Similarly, leaf drop in poinsettias is affected
by cultivar Consumer care also is important in maximiz-
mg the longevity of flowering plants. Potted tulips can last

15-18 days by being placed in a cool (65F) location, but
only 8 days at warm temperatures (80F). Consumers must
water plants properly to keep them alive indoors. Potted
chrysanthemum longevity increased 7 days by maintaining
a uniformly moist soti rather than allowing the plants to
wilt prior to watering. The information developed in this
program is being disseminated to growers, shippers,
retailers, and consumers to maintain consumer satisfaction
with products that represent the most rapidly expanding
segment of agriculture.
Department of Environmental Horticulture
Terril A. Nell, Professor

Improved Cold Tolerance in Plants
The ability to survive frosts and freezes varies widely
among plants. Unfortunately, most of the important crops
grown m Florida are susceptible to the damaging effects of
frosts and freezes. Although classical breeding can improve
the hardiness of certain crop species, it does not offer the
potential to dramatically alter the cold tolerance of most
crop species over the short term. Alternatively, recombi-
nant DNA approaches may be able to significantly alter
cold tolerance if the genes responsible for this trait can be
We have been working to identify genes in a hardy plant
that confer tolerance to freezing stress. Thus far, we have
isolated two genes whose expression is correlated with this
tolerance. Recently, we have begun efforts to transfer
these genes to plants sensitive to freezing stress in an effort
to improve cold hardiness. The results of these experi-
ments, when they are completed, should show whether we
have successfully enhanced cold hardiness through genetic
engineering by placing genes responsible for cold tolerance
in plants sensitive to cold. If the experiments are success-
ful, the risk of crop loss from frosts and freezes could be
greatly reduced
Department of Environmental Horticulture
Charles Guy, Associate Professor

Urban Tree Research for Residential and
Commercial Landscapes
Tree planting in residential and commercial landscapes,
along streets, and in other urban and suburban areas is
receiving more federal funding than ever before. Unfortu-
nately, until 10 years ago little data was generated on
appropriate planting and aftercare techniques. Our recent
findings from research studies conducted at the Urban Tree
Research Unit in Gainesville have begun to indicate
optimum irrigation scheduling, volume, and placement;
fertilizer needs at planting; and pruning techniques that
encourage quick recovery from transplanting. Drip
irrigation during nursery production, combined with proper
root pruning, can enhance the transplantability of large
landscape trees. In addition, their survival rate is higher

18 1993 Selected Research Accomplishments

than that of larger trees. Our research also has shown that
trees can be produced with less energy (i e., water and
fertilizer) than is currently used in many nurseries. Addi-
tional studies at the Urban Research Unit showed that
trees transplanted from containers take longer to establish
in the landscape than those dug from field soil. When this
information is extended to consumers through the Coop-
erative Extension Service and implemented, energy inputs
into landscapes will be reduced through increased plant
survival and optimized pruning, irrigation, and fertilizer
Department of Environmental Horticulture
Edward Gilman, Associate Professor

The Use of Electron Microscopy to Establish
Phylogenetic Relationships between Truffles
and Cup-fungi
Truffles are the most highly prized and costly of all edible
fungi because they grow underground, grow only during a
limited period, and have symbiotic relationships with
higher plants. Thus far, it has been impossible to grow
truffles under artificial conditions; therefore, only those
found in the field have been marketable. Because of their
intimate relationship with oaks, beeches, and other
broadleafed trees, truffles have a wide distribution.
For more than a century, scientists have believed that
truffles are closely related to the large, above-ground cup
fungt we place in the Pezzales. Nearly 15 families of cup
fungi have been recognized, including the choice edible
sponge mushrooms, or "morels." Based on morphological
data obtained in the field and observations made in the
laboratory with the light microscope, scientists have
considered many truffle groups to be underground genera
or species of traditional above-ground groups. The
underground growth habit, however, has resulted in highly
distorted fruiting structures and strange anatomical and
microscopic features.
The electron microscope has allowed us to clearly define
more stable subcellular characteristics that distinguish
respective families of cup fungi. This is particularly true for
septal pore plugging structures and various types of spore
wall deposition. By examining these identical features in a
number of truffles, we have been able to show very clearly
that certain truffles belong to a particular family of cup
fungi. The genus Barssza, which grows abundantly
throughout the Pacific Northwest, has been determined to
be in the Helvellaceae family; Hydnobolites, found in
Florda and elsewhere, a member of the Pezizaceae family;
and, most recently, Genea, a member of the Ottdeaceae
Currently, we are attempting to secure as many truffles as
possible to chemically fix and embed for electron micros-
copy We anticipate that within a few years we will know
to which group of cup fungi each truffle group belongs.

With such knowledge, we may be better ableto better
understand their growth requirements and learn how to
grow them abundantly under artificial conditions.
Department of Plant Pathology
James W. Kimbrough, Professor

Evaluation and Development of Specialty
Vegetables for Production in West Central
The importance of specialty vegetable crops has increased
substantially in recent years. Specialty vegetables are a
diverse group that includes vegetables grown on small
acreages (formerly called minor crops), ethnic vegetables,
gourmet vegetables, and miniature vegetables. Production
of specialty vegetables offers large growers the opportunity
of diversification and small growers the production of high-
value crops that permit them to be competitive in the
marketplace. Improved varieties of decorative pumpkins
and mploid (seedless) watermelons for commercial
production were demonstrated, and research on the
feasibility of commercial asparagus production was contin-
ued. Good progress was made on the development of
short-vined, high-quality calabaza hybrids that produce
high yields and require less space.
Gulf Coast Research and Education Center Bradenton
D. N. Maynard, Professor

Strawberry Breeding and Cultivar
The new cultivar "Sweet Charlie" generally performed well
in commercial production during the 1992-93 season and
had high consumer acceptance especially in roadside
markets m west central Florida. Acreage planted with
"Sweet Charlie" is expected to expand from approximately
150 acres during the 1992-93 season to nearly 1,000 acres
during the 1993-94 season Two advanced selections from
the breeding program, FL 87-236 and FL 90-15, will be
evaluated in several large grower trials during the 1993-94
season. FL 87-236 produces high yields of large fruit on
relatively small, easily managed plants. FL 90-15, while
not quite as productive as FL 87-236, produces fruit that
has been highly rated for color, firmness, and flavor by a
trained panel of tasters.
Gulf Coast Research and Education Center Dover
C. K. Chandler, Associate Professor

Evaluation of Flowering Bedding Plants for the
Florida Landscape
More than 60 cultivars of seed geranium were evaluated m
three seasons, including the multiflora, standard, and
tetraptlod types. The diverse colors of red, white, pink,
coral, rose, orange, cherry, appleblossom, violet, lilac, and

1993 Selected Research Accomplishments 19

carmine were examined. Some "Avanti" series colors of
the multflora type bloomed less than 100 days after sowing
without the use of plant growth stimulants, while "Tetra
Scarlet," a tetraploid seed geranium, bloomed 115-119 days
after sowing and was among the latest to flower each
season. Flower head numbers weregreatest for the multi-
flora types, which had 5-15 flower heads per plant com-
pared with 1-2 per plant for standard types.
More than 740 cultivars of flowering bedding plants were
examined in three field trials during the summer, fall/
winter, and spring seasons of 1992-93. Approximately 30
species were studied each season for mature plant size,
flower size, flowering ability, novelty value, and appear-
ance. Attractive and successful cultivars for the landscape
included the vinca "Troptcana" series and "Cooler" series,
the torenia "Clown" series; nicotiana "Metro Red";
nerembergia "Mont Blanc"; dianthus "First Love";
impatiens "Accent Coral," "Accent Lavender Blue,"
"Dazzler Punch," "Impulse Lilac-Blue," "Super Elfin Swirl,"
"Deco" series, and "Showstopper Lavender Blush"; verbena
"Imagination" and "Valentine Light Blue"; sunflower
"Valentine" and "Hallo"; gazania "Talent"; the pansy
"Clear Sky" series, "Skyline" series, "Melody Red with
Blotch," and "Maxim Blue & Yellow"; and the petunia
"Prism," "Horizon," and "Merin" series.
Gulf Coast Research & Education Center Bradenton
T. K. Howe, Coordinator, Research Programs

Breeding Ornamental Plants for Florida
The 1992 release of three caladium cultvars to industry
was the most significant highlight of the program. These
new cultivars combine the good qualities of foliage color,
tuber health, and reproductive capability. The new
cultivars are: 1) "Fantasy," a fancy leaf with white back-
ground, fine green netted venation, and deep red, non-
bleeding main veins, for use in containers and shady
landscape areas; 2) "Florida Else," a fancy leaf with large
pink blotches and deep green main veins, primarily for use
in the landscape; and 3) "Florida Sweetheart," a fat-lance
leaf type with light rose background and deep rose veins,
for use in containers. "Florida Sweetheart" has been
granted a patent by the U.S Patent Office Promising new
selections that performed well m replicated trials include:
1) 214, a green lance for landscape and containers; 2)
#215, a red lance for containers; and 3) #117, a fancy leaf
with large rose-and-white blotches and dark red main
Gulf Coast Research & Education Center Bradenton
G. J Wilfret, Professor

Selection of Lisianthus Suitable for Production
under Florida Conditions
Lisianthus (Eustoma grandiflorum) is a native widflower
found in prairie states from Texas to Colorado. In the
early 1980s, Japanese seed companies introduced commer-
cal lines with potential as cut flowers or flowering potted
plants. As consumers became aware of this spectacular
new flower, demands that Florida's floriculture industry
produce this crop for sale increased. Commercial produc-
tion in Flonda was difficult or impractical, however, since
high temperatures caused the plants to remain vegetative.
Initially, selections for heat tolerance were made at the
GCREC during the 1988-89 season; continued selections
and improvements for basal branching and dwarfness were
made through 1991. Advanced, heat-tolerant lines have
been selected for use as parents for F1 hybrids with
potential for release as potted plants or tall cut flowers. Fl
hybrids produced in 1992 will be evaluated in 1993
todetermine whether these heat-tolerant lines are suitable
for production by Florida's floriculture industry.
Gulf Coast Research & Education Center Bradenton
B. K. Harbaugh, Professor and J. W. Scott, Professor

Tomato Candidates for Release to Fresh
Several improved breeding lines are in final release trials.
The Cultivar Release Advisory Committee has approved a
minature-dwarfcultivar with golden fruit for release as a
companion to "Micro-Tom," which was released earlier A
bacterial wilt-tolerant, heat-tolerant, open-poLlnated line,
Fla 7421, has been tested extensively. It will be released
primarily for use in tropical regions where soils are infested
with bacterial wilt because few varieties with bacterial wilt
tolerance are available. Fla. 7421 has an excellent fruit
shoulder but somewhat rough blossom scars. The heat-
tolerant breeding line Fla. 7324 has performed well for
several years, both as a line and as a parent It has
smoother blossom scars than the heat-tolerant parent in
"Solar Set"; consequently, Fls from Fla. 7324 will be
smoother than those from "Solar Set Other breeding
lines being considered are race 3 of the Fusarium Wdlt-
resistant lines Fla. 7481, which is ointless, and Fla. 7547,
which is jointed. The latter has an excellent fruit shoulder
and both have good blossom scars. The breeding line Fla.
7482B is another potential release candidate with very
large fruit, smooth blossom scars, good firmness, and good
flavor. It is a replacement for Fla. 7060, the parent with
large fruit in "Solar Set The fruit have smoother blossom
scars and fruit setting is better than with Fla. 7060. With
the exception of the first two lines, it is anticipated that
these releases will be useful as parents in commercial seed
company breeding programs. Plant Variety Protection
(PVP) will be sought for all of these releases.
Gulf Coast Research and Education Center Bradenton
J. W. Scott, Professor

20 1993 Selected Research Accomplishments

Controlling Growth and Development of
Liatris spicate "Callilepsis"
Liarris, a perennial species that has become a major
commercial source of cut flowers and perennial garden
plants, forms underground corms for overwintering.
Removing the terminal bud of the corm prevented
transmission of an inhibitory signal, which allowed the
axillary corm meristems to flower. This increased the
number of flowering shoots formed per corm. To enable
the increase in flowering shoots to occur, the terminal bud
had to be removed within 5 days of planting; otherwise,
the effect was reduced. Applied auxins were not able to
replace the inhibitory effect of the terminal bud. Applica-
tion of high levels of cytokinin and an 8-hour phocoperod
also were able to increase the number of flowering shoots
formed per corm, but not to the extent of removing the
terminal bud. Under an 8-hour photoperiod, more
flowering shoots developed than in plants grown under a
16-hour phoroperiod. When grown under a 16-hour
photoperiod, however, plants were taller and a greater
percentage of the nodes on the inflorescence formed
flowers. When the elongating inflorescence was decapi-
tated, axillary meristems of the inflorescence grown under
an 8-hour photoperiod developed into cormlets; those
grown under a 16-hour phocoperod developed into small
flowering shoots. The development of these cormlets may
provide an alternative method of Liams propagation.
Gulf Coast Research and Education Center Bradenton
M. R. Evans, Assistant Professor

Production and Marketing of "Orangetti"
Spaghetti Squash
"Orangetti" spaghetti squash (Cucurbita pepo L.) has a bush
growth habit, a unique orange flesh and rind, and a high
provttamin A content. Fruit yields and size were evaluated
during a fall trial located at Fort Pierce, Florida. Seeds
were sown at 15, 31. 46, 61, and 76 cm within-row
spacings (WRS) and plants were thinned to a single plant
per hill upon emergence. Plant populations ranged from
6,148 to 30,742 plants/ha. As WRS increased, marketable
fruit weight and number per ha experienced a linear
decrease. The linear increase in weight or number of fruit
per plant as WRS increased was not sufficient to compen-
sate for the higher yields obtained at higher plant popula-
tions (15 or 31 WRS). However, fruit from plots with
WRS of 31 cm or more had a mean fruit size (g/fruit) of
more than 1 kg (fruit weighing I kg or more is of optimum
quality). When "Orangetti" and "Vegetable Spaghetti"
fruit were marketed simultaneously in a Publix supermar-
ket, 37% and 50% of the fruit were sold, respectively This
study suggests the potential for growing and marketing
"Orangetti" squash as an alternate vegetable crop in
Fort Pierce Agricultural Research and Education Center
Peter Stoffella, Professor

Increased Seed Production for "Savanna" Stylo
"Savanna" stylo is a new Stylosanices culuvar adapted to
Flonda. This forage legume, developed at the AREC-Fort
Pierce and released in 1992, is different from the summer
legumes familiar to Florida cattlemen. Unlike hairy indigo,
Alice clover, and other summer legumes commonly grown
in Florida, which bloom, produce seed, stop growing, and
often drop their leaves in September and October, Sa-
vanna stylo continues to grow throughout September,
October, and November. Plants remain green and retain
their leaves until the first frost. Savanna stylo will live
through the winter in south Florida. In northern locations,
Savanna stylo will act as a reseeding annual. Savanna
stylo seed was first produced commercially in December
1992 by the Payne Seed Company in Sebrng, Florida.
The same seed company planted more acreage of Savanna
stylo in the spring of 1993 to increase seed production.
The company expects to harvest several tons of stylo seed
this year, which then will be available for the market at the
end of 1993.
Fort Pierce Agricultural Research and Education Center
John B. Brolmann, Associate Professor

Program Fertilization for Establishment of
Orange Trees
The citrus industry recently added more than 160,000
acres in south Florida, where mild winter temperatures
allow for uninterrupted tree growth. Young trees, which
are more densely planted than in the past, typically are
fertilized in excess of current guidelines in an effort to
accelerate fruit production. Recent work suggests that the
amount of nitrogen recommendedfor nonbearing trees
exceeds that required for maximum growth, especially
where controlled-release fertilizer is used.
For 4 years, newly planted "Hamlin" orange trees were
fertilized with varied levels of nitrogen, the highest level
equivalent to 100% of the rate currently recommended by
IFAS. At this level, the orange yield of the 4-year-old
grove was 516 boxes per acre. Where the grove was
fertilized at 50% of the recommended race, however, the
yield was 473 boxes per acre. Doubling the nitrogen
fertilizer rate increased the yield by only 9%. It is likely
that profitability could be increased by decreasing the N
rate applied to young trees.
Controlled-release N was used successfully as a component
of the fertilizer program. Its main benefit was a decrease in
application frequency when compared with nitrogen
fertilizer, which is water-soluble. Environmental concerns
also favor decreased nitrogen rates and the use of con-
trolled-release fertilizer
Southwest Florida Research and Education Center -
T A. Obreza, Assistant Professor

1993 Selected Research Accomplishments 21

Controlled-Release Nitrogen Fertilizers for
Young Citrus Trees
During recent years, nitrate contamination of shallow
groundwater has increased in deep, sandy ridge areas of
central Florida near citrus production sites. This has
necessitated improvements in fertilization practices for
citrus production to minimize groundwater contamination
from routine application of N fertilizer.
Nitrogen use efficiency and nitrate leaching loss were
evaluated during the fertilization of young citrus trees with
controlled-release N fertilizers and conventional dry,
soluble sources. Fertilizer treatments were applied in
February to a commercial grove of Pineapple orange on
Swingle citrumelo rootstock, newly planted on a Candler
fine sand near Lake Alfred. N rates were 0.04-0.34 lb N/
tree/year during the first year and 0 08-0.68 lb N/tree/year
during the second year. Conventional soluble fertilizers,
e.g ammonium nitrate or calcium nitrate, were applied in
four equally split doses. Controlled-release fertilizers were
applied once during February. Growth parameters and N
concentration in mature spring flush were not significantly
influenced by any of the treatments, indicating reduced N
application rates had no adverse effects on tree growth or
mineral nutrition. If results on tree growth are consistent
during the following years, and on fruit yield during fruit-
bearing years, current recommendations on N require-
ments for young trees could be revised accordingly.
Improved formulations of conrolled-release fertilizers and
improved placement techniques contribute to more
efficient N use, permitting reduced application races
without adverse effects on tree growth and/or fruit
Nitrate concentratons in the leachate below the root zone
were consistently lower for treatments using controlled-
release fertilizers than for those using conventional dry,
soluble sources. Therefore, the study demonstrates the
potential for minimizing nitrate loss due to leaching by
using controlled-release fertilizers
Citrus Research and Education Center Lake Alfred
A. K Alva, Assistant Professor

Release of "Andru 93" Peanut
"Andru 93," an early maturing, runner type of peanut
cultivar, is a sisterine of"Marc I." After it was approved
for release in 1992, Florida Foundation Seed Producers,
Inc., arranged for an exclusive marketing arrangement with
Anderson Peanut Company Although this cultivar is very
similar to Marc I, its seeds are somewhat larger (similar to
those of "Sunrunner" or "GK7") and it produces slightly
more vine growth. Maturing approximately 10 days earlier
than "Florunner," it has shown a yield advantage of slightly
more than 10% over Florunner in Marianna tests and a 5%
advantage in Gainesville tests, Andru 93 is in commercial

seed production this year (1993) and a limited amount of
registered seed should be available for 1994
North Florida Research and Education Center Mananna
D. W. Gorbet, Professor

Progress Toward Resistance to Southern Stem
Rot in Peanuts
The fungus Scleromum rolfsa causes southern stem rot i
peanuts (Arachis hypogaea) Losses to this disease occur
annually in growers' fields, as plants wilt and die Even if
only part of a plant dies, pod rot often occurs, affecting pod
yield and grade In Florida, economic losses to this disease
alone may be as high as $2 million in any given year.
Because the fungus produces oxalic acid as well as
pectnolytic and cellulolytic enzymes to break down tissue,
it was thought that resistance to it might be rare. How-
ever, resistance on various lines and cultivars in the field
has been noted in recent years. One Florida cultivar called
Southern Runner, tested as UF80202, has been found to
have a significant level of resistance. At the North Florida
Research and Education Center, a single plant inoculation
technique has been developed that permits screening for
resistance in the field and allows little opportunity for
plant escape. Plants are inoculated about 45 days after
planting with individual 1-cm plugs of potato dextrose agar
containing a germinated sclerotium of a virulent isolate of
the fungus. Such noculum provides a sclerotium, an
actively growing mycelum, and a food base, all the
components necessary when conditions for infection are
present. Plants are watered before inoculation and for 2
consecutive days thereafter to maintain the proper condi-
tions. Individual plants are marked with flags before
inoculation so they can be located later for assessment
Multiple assessments are made on each plant, the results of
which permit selection of genotypes for further testing.
Genotypes with promising levels of resistance can be
further tested in a paired-plot yield test in which two rows
are inoculated and two others remain unmoculated. In
1992, yield tests at two locations resulted in identification
of six breeding lines with 50% or less yield loss to stem rot
than the susceptible cultivar Florunner and 5%- 12% less
yield loss than the moderately resistant cultivar Southern
Runner Four of the resistant breeding lines identified also
have partial resistance to late leafspot.
Results of these trials indicate that i the past 2 years,
significant progress has been made using the single-plant
inoculation technique to screen for resistance to stem rot.
Further testing is underway on elite breeding lines, as the
search for a suitable cultivar continues. A single-row,
unrepicated prescreen also has been introduced to allow
quick testing of large numbers of genotypes before employ-
ing the single-plant technique. Development of a peanut
cultivar with good resistance to southern stem rot, as well
as some resistance to late leafspot, should allow growers to

22 1993 Selected Research Accomplishments

increase profits by increasing or sustaining high yields and
reducing pesticide inputs.
North Florida Research and Education Center Quincy
and Man anna
F. M. Shokes, Professor and D. W. Gorbet, Professor


Long-Range Strategic Plans for the Florida
State Farmers' Market System
The Florida Agricultural Market Research Center recently
completed a comprehensive study of the farmers' market
system operated by the Florida Department of Agriculture
and Consumer Services. The study examined the forces
shaping the future of agriculture in each of the 15 geo-
graphic areas served by state-owned farmers' markets.
Trends in population growth and agricultural production
were analyzed for the service areas of each market. Trends
in such performance criteria as gross sales and net operat-
mg revenues also were examined for each market. Other
factors, such as emerging environmental constraints and
changing trade policies, were investigated as well. In
general, most markets were found to be serving the
marketing needs of their agricultural producers quite well.
Further, production trends indicate a continuing need for
almost all of the current markets, despite increasing
urbanization in many areas. While a few markets will
require expansion within the next 5 years, almost all will
need major renovations in order to continue serving their
agricultural communities adequately.
Department of Food and Resource Economics
Robert Degner, Professor

Fishing Families' Strategies for Coping with
Perceived Effects of Changes in Marine
Fisheries Regulations
This study focused on the effects of changes in the marine
fisheries industry on commercial fishing families involved
in m-shore net-fishing. First, we looked specifically at the
effects of changes in marine fisheries regulations. Almost
everyone in the sample (n=95 couples) indicated that
changes in regulations had negatively affected their ability
to make a living from fishing. The greater the perceived
negative effect of changes in regulations, the greater the
financial stress, i.e., the less families were able to afford
household expenditures
To further explore the effects of changes in commercial
fishing, we looked at the effects of total industry-related
changes on several indicators of stress We included not
only changes in regulations but other forces affecting
commercial fishers' ability to make a living from fishing
(e.g., increased numbers of recreational fishers, coastal
development, and increased costs of gear). Changes in the

industry and financial srains affected some measures of
stress indirectly through financial concerns. Families
experiencing greater difficulty making a living from fishing
because of industry-related changes and, consequently,
more financial strain, were more likely to find ways to
increase their household income and reduce household
expenses. Two common strategies were seeking other
types of employment and cutting back on household living
While finding other work and cutting back on household
expenses reduced financial stress, these strategies also
increased family tension and reduced marital satisfaction.
Thus, while nonfishing obs may hold some rewards for
individuals and may reduce financial stress, such employ-
ment may put additional pressures on families.
Department of Home Economics
Suzanna D. Smith, Assistant Professor

A Graphical Approach for Evaluating Mixture
Single-valued criteria such as A-, D-, G-, and V-optimality
are used often in selecting an "optimal" computer-gener-
ated experimental design. These critera are especially
popular with mixture experiments, where the shape of the
experimental region can become complicated by the
placement of lower- and upper-bound constraints on the
ingredient proportions. Although such criteria provide a
valuable and reasonable basis for generating designs, the
resulting designs often fall short of being truly optimal in
terms minimizing the variance of the prediction equation
over the region of interest.
A graphical approach is presented that allows the user to
critique a given design's support for the prediction equa-
tion over the experimental region in terms of prediction
variance. Using the graphical aid, the experimenter can
compare computer-generated designs in terms of minimum
prediction vanance, selecting the particular design chat
best suits his or her needs before actually running the
mixture experment. The graphical procedure is illustrated
with a well-known mixture experiment.
Department of Statistics
John A Cornell, Professor

Statistical Sampling for Product Safety and
Disease-Free Certification
Potentially harmful materials are found in water, sod, and
air as a result of natural and human activities Measure-
ments from environmental samples vary over space and
time in the amounts of hazardous materials they contain.
Samples must therefore be replicated in time and space to
estabhsh limits on the amounts of materials present. Also,
plant and animal materials shipped from Florida to other
states and Canada often must be tested to determine that

1993 Selected Research Accomplishments 23

they are free from various diseases. Although it is impos-
sible to prove that materials are absolutely disease-free
without testing the entire lot, it is possible to establish
limits on the percentage of diseased materials in a lot
through proper statistical sampling. IFAS statisticians are
studying data from previous research and laws of probabil-
ity to identify sampling plans that will establish limits on
levels of hazardous environmental materials and on
percentages of diseased plant and animal materials.
Department of Statistics
Ramon C. Littell, Professor

Changes in Faculty


George E. Combs, Jr., Animal Science 07/31/92
Frederick D. Bennett, Entomology & Nematology
Emerson M. Babb, Food & Resource Economics 12/31/92
Laurence H. Purdy, Jr., Plant Pathology 07/31/92
Richard T. Poole, Apopka Research & Education Center

W. D. Shoup, Office of Dean for Academic Programs and
Agricultural Engineering 07/22/92

Charles P

Reid, Department of Forestry


Mark S. Lesney, Department of Forestry 08/93
Jonathon F. Earle, Agricultural Engineering 07/92
Adelbert B. Bottcher, Agricultural Engineering 07/21/93
John S. Shonkwiler, Food & Resource Economics

Michael D. Corbett, Food Science & Human Nutrition
Komaratchi R. Narayanan, Tropical Research & Education
Center 09/19/92
Richard K. Jansson, Tropical Research & Education
Center 06/07/93
George D. Sadler, Citrus Research & Education Center
Stephen D. Verkade, Ft. Lauderdale Research & Education
Center 07/14/93

New Appointments
Peter A. Hartmann, Director and Professor, International



John M. Davis, Assistant Professor, Forestry


Douglas R. Carter, Assistant Professor, Forestry 04/02/93
Patricia A. Werner, Chair & Professor, Widlife & Range



Edwin R. Duke, Assistant Professor, Ft. Lauderdale
Research & Education Center 06/18/93


The University of Florida IFAS



President & Prof

1,2,3 JAMES M. DAVIDSON Vice Pres for Agr.
& Nat. Resources & Prof.


Office of the Dean for Research

1022 McCarty Hall

Gainesville, FL


Telephone: 904-392-1784
Fax: 904-392-4965

7922 NW 71 Street
Ganesville, FL 32606-0300
Telephone: 904-392-9613
Fax: 904-392-3462


Acting Dir. & Prof.

3123 McCarty Hall

Gainesville, FL


Telephone: 904-392-7622

Interim Dean for Research &

Prof.; appointed 07/12/93

Acting Dir. & Assoc.



Director, IFAS Sponsored

EVERET R EMINO A. EMINO Asst. Dean & Prof.
THOMAS E. FREEMAN Act. Asst. Dean & Prof.
JUDY F. KITE Coord., Admmin. Services
JOHN T NEILSON AssE. Dean & Prof.

2610 SW 23 Terrace
Gainesville, FL 32611



Fax: 904-392-9033


Dir. & Prof.

Foundation Seed Producers Inc.

Mgr. Fla.

Foundation Seed Producers, Inc.
2 NEAL P. THOMPSON Associate Dean and
Interim Dean for Research and Professor, reassigned
2 ALAN J. WILKENING Coord., Computer


215 Perry Paige Building
Tallahassee, FL 32307
Telephone: 904-599-3546
Fax: 904-561-2151

Research Grants:

Biggs R. H. NATO Advanced Research Work-shop on
Stratospheric Ozone Depleton/UV-B in the

Biosphere. Colorado State University
01/12/94. $10,000

Biggs R. H.


NATO Advanced Research Workshop on

Stratospheric Ozone Depleion/UV-B in the
Biosphere. University of California Davis
01/04/93-10/31/93. $25,000

Davidson J

M. Cooperative Support Agreement.

USDA-CSRS (Water Quality Research)
09/30/92. $900


Davidson J. M. Support of Agricultural Research of
Mutual Interest. USDA-ARS (Research Support
Agreement). 10/01/91-09/30/96. $710,533
Davidson J. M. Cooperative Support Agreement Travel.
USDA Cooperative State Research Service.
10/01/92-09/30/93. $29,200

1890 FAMU Programs

Asst Dean & Assoc Prof,

Davidson J. M. Cooperative Support Agreement


Cooperative State Research Service. 10/01/92-
09/30/93. $5,600

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research

Institute of Food and Agricultural



D. F. CBAG Management Grant for Tropical and
Subtropical Agriculture. USDA-CSRS (Tropical

Agricultural Research)

Emino E. R.

02/01/92-01/31/94 $62,985

Florida Tomato Committee Research

Projects. Fl Tomato Comm. 11/01/90-10/31/93.
Emino E. R. IFAS Watermelon Research. Fla.
Watermelon Assoc. 01/01/93-12/31/93. $11,500
Haller W T. Aquatic Plant Management Strategies in
Flowing Water Under WES/1FAS Cooperative
Agreement. U.S. Army. 08/04/92-09/28/94. $50,000
Haller W. T IFAS/SFWMD Cooperative Agreement
(Aquatic Herbicide Lateral). South Florida Water
Management District. 07/16/92-05/15/94. $25,950
Joyce J. C. New and Improved Methods for Control of
Aquatic Weeds. USDA Agricultural Research
Service. 10/01/88-09/30/93. $160,522
Joyce J. C. Assessment of the Potential for Hydnlla
Verticillate to Affect the Use of Lake Washington as
a Potable Water Supply Source St. Johns River
Water Management District. 04/26/93-09/08/93.
Joyce J. C. Melaeuca on Lake Okeechobee. Trillium
Productions. 03/16/93-03/24/93. $360
Langeland K. A. Assessment of Mmosa Pigra Eradication
in Florida. Florida Department of Natural Resources.
12/02/92-06/30/93 $60,000

3 Extension 4 Other UF or Cooperating Agency

Smith W. H. FL Water Conservaton/Compost Utilization
Program. Florida Department of Agriculture &
Consumer Services. 02/28/92-02/27/93. $20,000
Smith W. H. Compost Test Program for the Palm Beach
Solid Waste Authority. Palm Beach County Solid
Waste Authority. 05/01/93-05/01/95. $78,000
Smith W. H. Photovoltaic Parking Lot Lghting Project.
Department of Energy, Sandia National Laboratory
06/08/93-05/31/94. $20,000
Smith W. H. Florida Water Conservation/Compost
Utilization Program. Florida Department of
Agriculture & Consumer Services. 02/28/92-
12/31/94. $192,000
Thompson N. P. Support of Various Departments and
Centers. Fl Foundation of Seed Producers. 09/01/92-
08/31/93. $150,000
Thompson N. P. To Study and Help Make Available to
the Farmers of Flonda New and Improved Varieties
of Crop Seed and Other Plant Materials i Adequate
Quantities and Prices. Fla. Foundation of Seed
Producers. 07/01/93-06/30/94. $138,745
Thompson N. P. Research in Support of Plant Variety
Development FI Foundation of Seed Producers.
05/01/93-06/30/94. $97,827


1 Resident Instruction 2 Research


9 Frazer Rer ers Hall
Gainesville, FL 32611
Telephone: 904-392-1864
Fax: 904-392-4092

Ecological Systems
& Energy

so. Prof., Biological &

Asst Prof., Grain Drying

Prof, Food Engr.


Chair & Prof, Computer

LL Prof., Ag. Proc. & Aquatic

1,2 CARL D. BAIRD Prof., Engery & Ag. Proc.

2,3 DENNIS G. WATSON Asst. Prof., Software
Development & Utilization
1,2,3 FEDRO S ZAZUETA Assoc. Prof., Water Mgt.

UF/IFAS, USDA-CRIS Research Projects:

& Waste Magi.

Prof., Safety Spec
ssoc. Prof., Farm Structures



Prof., Energy & Proc



Anaerobic Digestion
RICHARD P. CROMWELL Assoc. Prof., Age.

Resource Utiltzanton



Vstg Prof., Ag. Prod Syst.

LE Asst. Prof., Bioprocess

SProf., Energy & Systems,

Asst Prof., Groundwater

1,2,3 DOROTA Z. HAMAN Assoc. Prof, Water Mgt.
1,2 ROY C. HARRELL Assoc. Prof., Robotics
1,2 JAMES W. JONES Prof. Agr. Engm., Plant
Modeling & Systems Analysis

Harvesting, Storing and Feeding Ensded
R P. Cromwell

Application of Integrated Agrotechnology for
Crop Production and Environmental Quality

J W. Jones





R. M Peart

A. G. Smastrla

Simulation Models for Forage Production
A. R. Overman

Computer Systems for Enhancing Agricul-
tural Decision Making in the Caribbean
J. W Jones
Effect of Land Treatment of Municipal
Wastewater on Water Quality and Crop
A. R. Overman

Use of Controlled Eutrophication in Aquac-
ulture and Animal Production


Prof., Environmental

E. P Lincoln

J. F. Earle

1,2 EDWARD P. LINCOLN Assoc Prof., Algae Prod.
1,2 JOHN W. MISHOE Prof., Crop Modeling
Instrumentation Systems
1,2,3 ROGER A. NORDSTEDT Assoc Prof., Waste



Pollution Control




Prof., Water Mg. &

Grad. Res

Prof., Systems


Professor, Systems

Prof., Ag, Mach.

Prof., Hydrology


1,2,3 ALLEN G. SMAJSTRLA Prof, Water

Design of Structures for Optimum Agricul-
tural Production
R, A. Bucklin

Yield Potential in Common Bean Phaseolus
Vulgans L. Genotypes as Related to Seed Size
Response to Temperature
J. W. Jones
Remote Sensing Application to Abandoned
Well Assessment in Florda
S. F Shih

Systems for Providing and Controlling
Interior Environments for Poultry and

R. A. Bucklin

P. H Jones

3 Extension 4 Other UF or Coonerarnm Aoencv

Agricultural Engineering

I Resident Instruction 2 Research

28 Agricultural Engineering

Meteorological Research and Agricultural
Management Modeling for Southern Agricul-

J. W. Mishoe
R. M. Peart
P. H. Jones


S. F. Shih
J. W. Jones

Management of Animal Waste in Support of
Sustainable Agriculture and Quality Water

R. A. Nordstedt




E. P. Lincoln


G. H. Smerage

H. W. Beck

Improvement of Thermal Processes for Foods
A. A. Teixeira

Microirrigation of Horticultural Crops in
Humid Regions

A. G. Smajstrla
F. S. Zazueta




D Z. Haman

Refereed Publications:



Processing, Handling, Packaging and Storage
of Fruits and Vegetables
K. V. Chau C. D. Baird
M. T. Talbot

Lower St. Johns and Lake George Agriculture

Baird, C. D. and Talbot, M. T. On Farm
Processing of Plant and Animal Products. Energy
in World Agriculture 18:267-300. 1992
Batchelor, W. D.; Jones, J. W ; Boote, K. J. and
Pinnschmidt, H. 0. Extending the Use of Crop
Models to Study Pest Damage Transactions of
the American Society of Agricultural Engineers
36:551-558. 1993

R-02067 Bowen, W. T.; Jones, J W; Carsky, R. J

Quintana, J. 0.


Soybean Response to Global Climate
Change-Elevated Temperature, Carbon

I. W. Jones


R. B. Curry


The Impact of Agricultural Systems on
Surface and Groundwater Quality

W. D. Graham
A. B. Bottcher



K. L. Campbell

Equipment Engineering for Vegetable
L. N. Shaw

Intelligent Information Retrieval Technology
for Electronic Dissemination of Agricultural

H. W. Beck


D G. Watson

Development of Profitable Beef-Forage
Production Systems for the Southern Region
0. J. Loewer

Evaluation of the Nitrogen

Submodel of CERES-Maie Following Legume
Green Manure Incorporation. Agronomy
Journal 85:153-159. 1993
Bucklm, R. A.; Bottcher, R. W.; VanWicklen,
G. L. and Czarick, M. Reflective Roof Coatings
for Heat Stress Relief In Livestock and Poultry
Housing. Applied Engineering in Agriculture
9:123-129. 1993
Pluck, R C.; Baird, C. D. and Panesar, B. S.
Energy Requirements for Florida Citrus
Production. Florida State Horticultural Society
Proceedings 105:84-87 1992

R-02761 Fluck, R. C.; Baird, C. D. and Panesar, B S
Energy Requirements for Florida Vegetable
Production. Florida State Horticultural Society
Proceedings 105:330-333 1992


Fluck, R. C.; Fonyo, C. and Flaig, E.
Based Phosphorus Balances for Lake


Okeechobee Subbasms. Applied Engineering in
Agriculture 8:813-820. 1992
R-02079 Graham, W. and Downey, D. An Inexpensive
Device for Multi-Level Sampling of
Groundwater Quality in Sandy Cohesionless
Aquifers. Soil and Crop Science Society ol
Florida 51:58-63 1992

3 Extension 4 Other UF or Cooperating Agency

Engineering Prnciples for Conservation
Cropping Systems
L. N. Shaw

Integrated Systems Technology for Evaluat-
ing Alternative Land Use Strategies
J. W.Jones

A Microcomputer Classroom Lecture Aid for
Undergraduate Food and Agricultural



I Resident Instruction 2 Research

Agricultural Engineering 29

R-02443 Grmm, S. S.; Jones, W.; Boote, K J. and
Hesketh, J. D Parameter Estimation for
Predicting Flowering Dates of Soybean. Crop
Science 33:137-144. 1993
R-02085 Haman, D. Z. and Joyner, M. E. Polymer
Conditioners for Florida Soils. Soil and Crop
Science Society 51.14/18. 1992


Jordan, J. D. and Shih, S. F. Landsat and SPOT
Imagery Classification for Land Use Change
Analysis in Lee County, Florida. Soil and Crop
Science Society of Florida 51 45-49. 1992

R-01148 Keng, A.; Mishoe, J W; Boote, K. J.; Cook,
P. W.; Reicosky, D. C., Pettgrew, W. T. and
Hodges, H. F. Development of Soybean Fresh
and Dry Weight Relationships for Real Time
Model Calibration. Agronomy Journal
85:140-146. 1993


Lal, H.; Hoogenboom, G.; Calixe, J. P.; Jones,
J W. and Bemroth, F. H. Using Crop
Simulation Models and GIS for Regional
Productivity Analysis. Applied Engineering in
Agriculture 36:175-184 1993

R-01999 Means, S. L., Buckhn, R. A., Nordstedt, R. A.;
Beede, D. K.; Bray, D. R.; Wilcox, C. J. and
Sanchez, W. K. Water Applicatton Rates for a
Sprinkler and Fan Dairy Cooling System i Hot,
Humid Climates. Applied Engineering in
Agriculture 8.375-379 1992
R-02116 Meyssami, B.; Balaban, M. 0. and Teixeira,
A. A. Prediction of pH in Model Systems
Pressured with Carbon Dioxide. Biotechnology
Progress 8:149-154. 1992
R-02291 Moynihan, M. J. and Haman, D Z.
Microrrgation Systems for Small-Scale Farms
in the Rio Cobre Basin Area of Jamaica.
Applied Engineering in Agriculture 8.617-623.
R-02075 Myhre, B. E.; Shth, S. F. and Still, D. A Using
Remote Sensing and GIS in Lower St. John's
River and Lake George Basins Agriculture and
Silviculture Inventory. Soil and Crop Science
Society 51 34-38. 1992
R-01917 Overman, A. R. and Evers, W. Estimation of
Yield and Nitrogen Removal by Bermudagrass
and Bahiagrass. American Society of
Agricultural Engineers 35:207-210. 1992


Overman, A. R. and Wilkinson, S R
Approach of Yield Response Curves to Steady
State. Communications in Soil Science and
Plant Analysis 23:761-768. 1992

R-01584 Overman, A. R. and Wilkison, S. R. Model
Evaluation for Perennial Grasses i the
Southern United States Agronomy Journal
84:523-529. 1992
R-01875 Overman, A. R.; Sanderson, M. A. and Jones,
R. M. Mathematical Analysis of Bermudagrass
and Bunchgrass Response to Applied Nitrogen.
Agronomy Journal. p. 541-545. 1993
R-01962 Overman, A. R., Wilkinson, S R. and Evers,
G. W. Yield Response of Bermudagrass and
Bahiagrass to Applied Nitrogen and Overseeded
Clover. Agronomy Journal 84:998-1001 1992
R-01410 Peck, M. and Chynoweth, D. P. On-Line
Fluorescence-Monitoring of the Methanagenic
Fermentation. Biotechnology and
Bioengineering39 115- 1160. 1992
R-01266 Petrell, R.J; Smerage, G H. and Bagnall, L. 0
Mathematical Simulation of Water Hyacinth
(Erchhomia crasssupes) Tows. American Society
of Agricultural Engineers 35:1691-1698. 1992
R-02630 Pickering, N. B.; Jones, J. W. and Boote, K J.
Evaluation of the Portable Chamber Technique
for Measuring Canopy Gas Exchange by
Crops. Agricultural and Forest Meteorology
63:239-254. 1993
R-02236 Sapru, V.; Teixeira, A. A.; Smerage, G. H.
and Lindsay, J. A. Mathematical Modeling of
Thermophlic Spore Population Dynamics for
Design and Validation of UHT Sterilizaon
Processes Journal of Food Science
57 5:1248-1257. 1992
R-01792 Shih, S. F. Calibration Parameters in Z-R
Relation for Radar Rainfall Estimation. Soil and
Crop Science Society 51:23-29. 1992
R-01567 Talasda, P. C.; Chau, K. V and Brecht, K
Modeling the Effects of Gas Concentrations and
Temperature on Respiration of Strawberries.
American Society of Agricultural Engineers
Transactions 35 1:21-24. 1992


Tankersley, C. D., Graham, W. D and Hatfield,
K. Comparison of Univarate and Transfer
Function Models of Groundwater Fluctuations.
Water Resources Research 29-3517-3533. 1993

R-01874 Thomas, M. V. and Nordstedt, R. A. Generic
Anaerobic Digestion Model for the Simulation
of Various Reactor Types and Substrates.
American Society of Agricultural Engineers
35:537-544 1993

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Agricultural Engineering

R-02799 Thomson, S. J.; Peart, R. M. and Mtshoe, J. W.
Parameter Adjustment to a Crop Model Using a
Sensor-Based Expert System. Transactions of
the ASAE 36:205-213. 1993
R-01771 Vellidis, 0. and Smajstrla. A. G. Modeling Soil
Water Redistribution and Extraction Patterns of
Drlp-lmgated Tomatoes above a Shallow Water
Table American Society of Agricultural
Engineers Transactions 35:183-191. 1992

Non-Refereed Publications:
N-00225 Hehkson, H. J.; Haman, D. Z. and Baird, C. D.
Photovoltatc-Powered Water Pumping for
Irrigation. Applied Engineering in Agriculture
8:625-629. 1992
N-00568 Shih, S. F and Engman, E. T. Applications of
Remote Sensing to Hydrology. Am Soc of Civil
Eng, Proc./Water Forum '92 Irgation &
Drainage System. p. 535-540. 1992
N-00575 Shih, S. F.; Engman, E. T. and Neale, C.
Applications of Remote Sensing to Drainage.
Am Soc of Civil Eng, Proc/Water Forum '92
Irrigation & Drainage Section. p. 547-552. 1992

Research Grants:
Beck H. W. Development of Expert Systems for Citrus
Agro-management Using CD-ROM. USDA Office
International Cooperation & Development.
10/01/92-09/30/94 $104,363
Beck H. W. Fairs CD-ROM Information Retrieval
Software. Colorado State University. 04/15/93-
06/30/93. $2,000
Campbell K. L. Performance of Selected BMPs for
Phosphorus Reduction in High Phosphorus Source
Areas. South Florida Water Management District.
03/04/93-07/03/93 $17,625
Chynoweth D. P. Biodegradability of Plastic Substitutes.
Net-Tech. 06/15/92-06/14/92. $5,000
Chynoweth D. P. Chloroform Biodegradation. National
Council for Air & Steam Improvement. 02/10/92-
02/10/93. $11,500
Earle J. F. IFAS as Co-Pl: Augmentation of Biological
Decomposition at Municipal Solid Waste Landfill.
Florida Center for Solid and Hazardous Waste
Research 06/01/92-06/30/93. $5,948

Graham W. D. IFAS as Co-P: Optimization Modeling for
Water Resources Allocation. St. Johns River Water
Management District. 09/28/92-09/27/94. $19,763
Graham W. D. Evaluation of the Impacts of Alternative
Citrus Production Practices on Groundwater Quality
Florida Department of Agriculture & Consumer
Services. 07/01/92-12/31/93. $16,800
Graham W. D. Statistical Characterization of
Groundwater Fluctuations & Hydrogelogic
Properties. St. Johns River Water Management
District. 08/01/91-08/31/93. $48,945
Haman D. Z. Water Use and Irrigation Scheduling of
Blueberries. St. Johns River Water Management
District. 10/12/90-12/31/93. $18,750
Jones ]. W. Optimal Environmental Control for
Indeterminate Greenhouse Crops. USDA-ARS
(Binattonal Agrcultural Research Development)
10/01/92-09/30/95. $34,500
Jones J. W. Loadss Verification and Refinement South
Florida Water Management District. 09/30/92-
03/30/93. $49,300
Loewer 0.. Analysis of Insect Acoustical
Communication and Insect Detection. USDA
Agricultural Research Service. 09/28/90-09/28/95
Nordstedt R. A. Leakage Detection and Mitigation for
Dairy Waste Lagoons and Storage Ponds Florida
Department of Environmental Regulation 03/05/93-
03/04/94. $37,212
Nordstedt R. A. Evaluation and Development of
Recyclable Compost Bins. Delvn & Taylor
Company. 01/11/93-12/31/93. $6,500
Overman A. R. Wastewater Irrigation at Tallahassee. City
of Tallahassee 10/01/90-09/30/92. $30,000
Peart R. M. Integrated Systems for Evaluating Impacts of
Changg Climate on Water Used by Agriculture in
the Southeast Region. South Carolina Water
Resources Commission. 05/01/93-04/30/95 $25,000
Tetxeira A. A. Biovaldation Test Kit-Commerciahzaton
(Continuation). Fla. High Tech & Ind Council.
01/13/93-01/12/94. $22,450

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Agronomy 31

304 Newell Hall
Gainesville, FL 32611
Telephone: 904-392-1811
Fax: 904-392-1840

2,3 JERRY M. BENNETT Chair & Prof., Crop
2 JEFFREY T. BAKER Assoc. Sc., Crop Physiology
1,2 KENNETH J. BOOTE Prof., Plant Physiol.

Spec Forage

Prof, Plant Brdg.
Assoc. Prof., Ext

2,3 DANIEL L. COLVIN Assoc. Prof, Ext. Weed Sc.
1,2 JOHN R. EDWARDSON Prof., Cytogeneics
1,2,3 KEDWIN C. FRENCH III Assoc. Prof., Crop Sys.
Forage Management
1,2 RAYMOND N. GALLAHER Prof, Multiple


Prof., Aquatic Weeds

1,2 CLIFTON K. HIEBSCH Assoc. Prof. Sustainable

& Brdg.

UF/IFAS, USDA-CRIS Research Projects:







Visiting Prof., Soybean Genet.

1,2 DAVID A. KNAUFT Prof., Plant Breeding
2,3 KENNETH A. LANGELAND Assoc. Prof.,
Aquatic Weeds & Plant Mgr,
1,2 FERDINAND LEGRAND Assoc. Prof., Biomass
2 A, JACK OSWALD Assoc. in Agronomy, Fla.
Foundation Seed Prod.
1,2 PAUL L. PFAHLER Prof., Genet.
1,2 GORDON M. PRINE Prof., Field Crop Ecol.

Genet. & Brdg.

Prof, Forage

orange Genet. &


Efficient Management of Multiple-Croppmg,
Minimum-Tillage Systems
R. N. Gallaher

Improvement of Pigeonpea (Cajanus cajan)
and Other Pulses

K. L. Buhr

Recovery of Carotenotds and Electric Power
from Leucaena Grown on Phosphate Ponds
F. LeGrand

Evaluation, Selection and Management of
Forage Grasses for Lvestock Production in
L. E. Sollenberger

Harvesting, Storing and Feeding Ensded
C. G. Chambliss

Growth Regulators to Improve Production
Efficiency of Crops
M. Wilcox

Application of Integrated Agrotechnology for
Crop Production and Environmental Quality

J. M. Bennett
C. K. Hiebsch




K.J. Booce

Development of Perennial Tropical Pasture
Legumes for Use i the Flatwoods of Peninsu-
lar Florida
C. G Chambiss

Simulation Models for Forage Production
C. G. Chambliss

Forage Grass Cytogenetics and Breeding

DONN G. SHILLING Assoc. Prof., Weed Science

S C Schank

D, S Wofford

Prof., Forage Genet. & Brdg

Forage Mgt.

Crop Mgt. Tobacco

Assoc. Prof., Tropical

Prof, Ext. Spec. Peanuts,


Development of Methods for the Selection of
Weed-Resistance Characteristics in Peanut

D G. Shilling


MERRILL WILCOX Prof., Herbicide Biochem.

D. A Knauft

Soybean Breeding
K. Hmson

Plant Breeding
1,2 E T. YORKJR Disting

Assoc. Prof., Gentics &

washed Serv


Prof., Plant

Plant Germplasm Introduction, increase,
Evaluation, Maintenance and Distribution
G. M. Prne

3 Extension 4 Other UF or Cooperatng Agency


I Resident Instruction 2 Research

32 Agronomy

Forage Legume Viruses: Identification and
Genetic Resistance for Improved Productivity

J. R. Edwardson
K. H. Quesenberry





D. S. Wofford


Ecological Responses of Crop Plants to the
Environment in a Systems Management
C. K. Hiebsch

Defoliation Responses and Quality-Related
Characteristics of Penrusetum Forages
L. E. Sollenberger

Aquatic Herbicide Dissipation in Flowing

Interaction of Hydnlla with Selected Native
Aquatic Plants Found in Florida

W. T. Halter

K. A. Langeland

Environmental and Genotypic Control of
Assimilate Allocation in Grai Crops

K. J. Boote


J. M. Bennett

Breeding and Genetics of Peanut (Aracus
hypogaea L)

D. A. Knauft
K.L. Buhr


D. L. Colvn
E. B. Whitty

Soybean Response to Global Climate
Change-Elevated Temperature, Carbon

-W. T. Haller
D. G. Shilling


K. A. Langeland

Yield Potential in Common Bean Phaseolus
Vulgaris L. Genotypes as Related to Seed Size
Response to Temperature

K.J. Boote
J. M. Bennett


L. H. Allen

Diagnosis of Virus Diseases in Crop and
Weed Hosts with Light Microscopy

J. R. Edwardson

R. G. Christie

K. J. Boote



J. M. Bennett


Carbon Dioxide and Climate Effects on
Photosynthesis, Growth, and Yield of Rice
and Other Crops
K. J. Boote

Evaluation of Forage Germplasm Under

Varied Management
C. G. Chambhss


Field Crop Cultivar Testing

D. A. Knauft
C. K. Hiebsch


E. B. Whitty

Genetic Charactertzation and Improvement
of Penmsetum for Biomass Production using
Molecular and Classical Methods

S. C. Schank







R. L. Smith

Temperature and Carbon Dioxide Effects on
Development, Growth and Yield of Rice and
Other Crops
K.J. Boote
Adapting the SOYGRO Crop Growth Model
to Predict Oil and Protein Composition of
K.J. Boote

Weed Management in Commercial Turfgrass
D. L. Colvin

Establishment and Persistence of Perennial
Arochs in Florida and Puerto Rico
K. H Quesenberry L. E. Sollenberger



L. E. Sollenberger

Small Grain Breeding and Genetics
P. L. Pfahler

Pollen Biology and Genetic Improvement in
Higher Plants
P. L. Pfahler

Seedling Vigor, Persistence, and Qualty
Determinants of Pennisetum Forages
L. E. Sollenberger

Effects of Bioherbicides on Competitive
Ability of Nutsedge
D. G. Shilling

Engineering Principles for Conservation
Cropping Systems
R. N. Gallaher

Refereed Publications:


Baker, J. T and Allen, Jr., L. H.


Crop Species Responses to C02 and
Temperature: Rice, Soybeans and Citrus.
International Journal Vegetation and C02
Biosphere 104-105:239-260 1993

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

Agronomy 33

R-01698 Baker, J T.; Allen, Jr., L H. and Boote, K. J
Effects of CO2 and Temperature on Growth and
Yield of Rice. Journal of Experimental Botany
43:959-964 1992
R-02076 Baker, J. T.; Allen, Jr., L. H. and Boote, K. J.
Response of Rice to C02 and Temperature
Agricultural and Forest Meteorology
60:153-166. 1992
R-02409 Bennett, J. M.; Sinclair, T. R., Ma, L. and Boote,
K.J. Single Leaf Carbon Exchange and Canopy
Radiation Use Efficiency of Four Peanut
Cultivars. Peanut Science 20:1-5. 1993


Bourgeois, G and Boote, K. Leaflet and
Canopy Photosynthesis of Peanut Affected by
Late Leaf Spot. Agronomy Journal 84.359-366.

R-01373 Chaparro, C. J.; Sollenberger, L. E and Jones,
Jr, C. S. Management Factors Affecting
Aeschynomere Reestablishment in Lmpograss
Swards. Agronomy Journal 84195-200. 1992
R-02285 Fox, A. and Haller, W. T Improving Herbicide
Efficacy in Spring-Fed Tidal Canals by Timing
and Application Methods. Journal of Aquatic
Plants 30:58-62. 1992
R-02631 Fox, A M.; Haller, W. T. and Getsinger, K. D.
Correlation of Endothal and Fluorescent Dye
Concentrations Following Concurrent
Application to Tidal Canals. Pesticide Science
37:99-106. 1993
R-01681 Gardner, F. P; Barnett, R. D. and Johnson, J. W
Reproductive Development of Wheat Cutlvars
and a Tritcale as Influenced by Sowing Date at
Three Latitudes. Crop Science 33-118-123.
R-01244 Holderbaum. J. F.; Solenberger, L. E.;
Quesenberry, K. H., Moore, J. E. and Jones, Jr,
C. S. Canopy Structure and Nutritive Value of
Rotationally-Grazed Limpograss Pastures during
Mid-Summer to Early Autumn. Agronomy
Journal 84:11-16 1992
R-01601 Joyce, J C; Langeland, K. A., Van, T. K. and
Vandiver, Jr V. V. Organic Sedimentation
Associated with Hydniia Management. Journal
of Aquatic Plamn Management 30:20-23. 1992
R-01881 Knauft, D. A.; Chzyembekeza, A. J. and Gorbet,
D. W. Possible Reproductive Factors
Contributing to Outcrossing in Peanut.
Peanut Science 19:29-31 1992

R-02410 Kouame, C. N.; Powell, J. M., Renard, C. A. and
Quesenberry, K. H. Plant Yields and Fodder
Quality RelateCted Characterics of Millet-Stylo
Intercropping Systems in the Sahel Agronomy
Journal. p. 601-605. 1993
R-01313 Ma, L.; Gardner, F. P. and Selamat, A
Estimation of Leaf Area from Leaf and Total
Mass Measurements i Peanut. Crop Science
32:467-471. 1992
R-02077 Mathews, B. W.; Joost, R. E. and Sollenberger,
L. E. Response of Florida 77' Alfalfa Grown on
an Acid Soil to Surface Application of
Phosphogypsum, Langbeinte, and Muriate
of Potash Sod and Crop Science Society
51:130-135. 1992
R-01932 McKellar, M. A. and Quesenberry, K. H.
Chromosome Pairing and Pollen Viability in
Desmodium ovalifolium Wall x Desmodium
heterocarpon (L) DC Hybrids. Australian Journal
of Botany 40:243-247. 1992


Moreno, J. E., Rich, J. R.; French, E. C., Prine,
G M.; and Dunn, R A. Reactions of Selected
Herbs to Three Melosdogyne spp. Nematropica
22:217-225. 1992

R-02174 Nile, W. L. and Quesenberry, K H. Pollen
Germination of Flortgraze' Rhizoma Peanut.
Peanut Science 19:105-107. 1992
R-01888 Ortega-S,J. A.; Sollenberger, L. E ; Bennett,
J. M. and Cornell, J. A. Rhizome Characterstics
and Canopy Light Interception of Grazed
Rhizoma Peanut Pastures. Agronomy Journal
84:804-809. 1992
R-01889 Ortega-S,J. A., Sollenberger, L. E.;
Quesenberry, K. H.; Cornell, J. A. and Jones, Jr.,
C. S. Productivity and Persistence of Rhi:oma
Peanut Pastures under Different Graz:ng
Managements. Agronomy Journal 84:799-804.
R-01493 Paik-Ro, O G., Smith, R. L. and Knauft, D A
Restriction Fragment Length Polymorphism
Evaluation of Six Peanut Species Within the
Arachs Section. Theoretical and Applied
Genetics 84:201-208. 1992
R-02433 Quesenberry, K. H. and Smith, R. R Recurrent
Selection for Plant Regeneration from Red
Clover Tissue Culture. Crop Science
33'585-589 1993


Quesenberry, K. H; Prme, G. M., Ruelke, 0 C.;
Dunavin, L. S. and Misievy, P. Registranon
of Cherokee Red Clover. Crop Science
33:208-209 1993

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research



Stocks, G. R. and Whitty, E. B.


Topping Effects on Photoperiod-Sensitve Flue-
Cured Tobacco. Tobacco Science 36:21-23.

Wilcox, M. and Taylor, J. B.

Fluometralin A

Promising and Environmentally Friendly
Herbicide for Use in Non-bearing Citrus.
Proceedings of the Florida State Horticultural
Society 105:1-3. 1992
Wofford, D. S.; Baltensperger, D D. and
Quesenberry, K. H. In Vitro Culture Responses
of Alyceclover Genotypes on Four Media
Systems. Crop Science 32:261-265. 1992
Wofford, D. S.; Quesenberry, K. H. and
Baltsensperger, D. D. Tissue Culture
Regeneration of Desmodium. Crop Science
32:266-268. 1992
Zeile, W. L.; Knauft, D. A. and Kelly, C. B. A
Rapid Technique for Fatty Acid Determination

in Individual Peanut Seed.
20:9-11. 1993

Peanut Science

Non-Refereed Publications:



Cunilo, T. V. and Prne, G M Leucaena,
Forage and Energy Crop for Lower South.
Proceedings, Soil and Crop Society of Florida
51:120-124. 1992
Schank, S. C.; Chynoweth, D. P.; Tunck, C. E.
and Mendoza, P. E. Naptergrass Genotypes and

Plant Parts for Biomass Energy.
Technology 4.1-7. 1993


Research Grants:
Bennett j. M. Development of Regional Models of Crop
Mass and Energy Exchange. USDA Agricultural
Research Service. 08/07/91-06/30/95 $5,000

Bennett J. M.

Royalty Returns for Apparatus for Peeling

Food Products. UF Research Foundation Inc.
11/12/92-06/30/94. $526

Saldivar, A. J.; Ocumpaugh, W. R.;
Gildersleeve, R. R. and Prine, G. M. Growth
Analysis of 'Florigraze' Rhzoma Peanut: Shoot
and Rhizome Dry Matter Production.
Agronomy Journal 84:444-449. 1992
Saldivar, A. J.; Ocumpaugh, W. R.;
Gildersleeve, R. R. and Prine, G. M. Growth
Analysis of Flortgraze Rhizoma Peanut: Total
Nonstructural Carbohydrates and Nitrogen.
Agronomy Journal 84:439-444. 1992
Sinclair, T. R., Bennett, J. M. and Boote, K. J.
Leaf Nitrogen Content, Photosynthesis, and
Radiation Use Efficiency in Peanut. Peanut
Science 20:40-43. 1993

Bennett J. M.

Research Projects in Florida Soybean

Production. Florida Department of Agriculture &
Consumer Services. 07/01/92-06/30/93. $8,062

Bennett J. M.

Research Projects in Florida Flue-cured

Tobacco (Check-off Funds). Florida Department of
Agriculture & Consumer Services. 05/06/93-
06/30/94. $27,767
Bennett J. M. Research Projects in Florida Soybean
Production (Check-off Funds). Florida Department
of Agriculture & Consumer Services. 07/01/92-
06/30194. $13,279
Bennett J. M. Agronomy Royalty Returns. Division of
Sponsored Research Buo Med. 08/28/85-12/31/99.
Boote K. J. Carbon Dioxide and Climate Effects on
Photosynthesis, Growth, and Yield of Rice and
Other Crops. USDA Agricultural Research Service.
12/01/88-09/30/93. $100,000
Boote K. J. Temperature and Carbon Dioxide Effects on
Development Growth and Yield of Rice and Other
Crops. USDA Agricultural Research Service
09/30899/30899/93. $81,000
Boote K. Climate Change and Rising Carbon Dioxide
Effects on Crops and Forages. USDA Agricultural
Research Service. 06/08/93-04/30/96. $120,000

Gallaher R. N.

Soil Chemical and Physical Properties and

Nitrogen Requirements of Crops in Double
Cropping Pioneer Hi-Bred International, Inc
03/27/92-06/30/94. $2,500
Haller W. T. Aquatic Plant Management Strategies i
Flowing Water-under WES/IFAS Cooperative
Agreement US Army. 03/05/90-09/28/94. $98,854
LeGrand F. Royalty Returns for Apparatus for Peeling
Food Products. UF Research Foundation Inc.
11/16/92-06/30/94. $1,577
Prne G. M. Ryegrass Variety Trials. Misc. Donors.
09/01/90-08/31/95. $764
Prine G. M. Energy Crops Demonstration-Experiment on
Sewage Effluent Spray Field at Tallahassee, FL.
Tennessee Valley Authority. 01/01/93-12/31/93

3 Extension 4 Other UF or Cooperating Agency

Bennett J. M. Research Projects in Florida Peanut
Production (Check-off Funds). Florida Department
of Agriculture & Consumer Services. 05/06/93-
06/30/94. $91,049








1 Resident Instruction 2 Research

Agronomy 35

Quesenberry K. H. Evaluate the Response of Tifolum spp.
Germplasm to Four Species of Root-knot
Nematodes. USDA Agricultural Research Service.
01/22/93-12/31/93. $8,000
Quesenberry K. H. Seed Increase of Tnfolium Species.
USDA Agricultural Research Service. 06/01/92-
10/27/93. $2,000

Shilling D. G. Management of Hydnlla Reproduction and
Growth in Flowtng Water Systems. Florida
Department of Natural Resources. 11/16/92-
06/01/93. $22336
Smith R. L. Breeding and Biotechnology for the
Improvement of Forage Yield, Quality and
Persistence of Pennisetums for Florida and the
Tropics. USDA-CSRS ( Tropical Agricultural
Research). 07/01/93-06/30/96. $38,950

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Animal Science


Animal Science Building 459

Gainesville, FL


Telephone: 904-392-1911
Fax: 904-392-7652

Harvesting, Storng and Feeding Ensied

W. E. Kunkle


Chm. & Prof.. Nutrition

D. B. Bates

Determination of Protein Interactions
Responsible for Processed Meat Quality

R. L. West

D. D. Johnson





Prof., Animal


Assoc. Prof., Equine

Assoc. Prof., Anim. Nutr.


Assoc. Prof., Swine

Nutrition and Management of Swine for
Increased Reproductive Efficiency
J. H. Brendemuhl

Bovine Relaxin: A Placental Source and
Effects of Protaglandin and Steriod

M. J. Fields

1,2 JOSEPH H. CONRAD Prof., Anm. Nutr.
Tropical Animal Science

Breeding & Genetics

Asst. Prof., Animal

Prof., Anm. Physiol.
OVE Prof., Anim. Breeding
N Assoc. Prof., Meat Sie
E Assoc. Prof., Extension


The Genetics of Body Composition in Beef

T. A. Olson
SD. Johnson


D. D. Hargrove
R. L. West

The Influences of Nutrition and Exercise on
Skeletal Development of Growing Horses

E. A. Ott

R. L Asqutth

Beef Specialist
1,2 SANDI LIEB Assoc. Prof., Anim. Nutr. Horse

Animal Science



Prof. Animal Nur., Tropical

Prof., Animal Nutr., Forage
ON Assoc. Prof., Animal

1,2,3 EDGAR A. OTT Prof., Anim. Nutr., Homes
2,3 ROBERT S. SAND Assoc. Prof., Amnm. Sc., Ext.
Beef Spec.


Livestock Spec.





Prof., Animal Physiology,


Assoc. Prof., Ext.

Prof., Anim. Sti.

WEST Prof., Meat Sci.



Assoc. Prof, Swine Nutrition

Use of Sugarcane Molasses Mixtures in
Cow-Calf Production Systems
W. E. Kunkle

Defoliation Responses and Quality-Related
Characteristics of Penmsecum Forages
J. E. Moore

Mineral and Vitamin Nutrition for Tropical
Grazing Ruminants
L R. McDowell

Evaluation of and Maximiing the Use of
Alternative Energy Feed Sources for Swine

J. H. Brendemuhl

C. E. White

Reproductive and Growth Parameters of Bos
ndtcus Cattle

T. A. Olson

UF/IFAS, USDA-CRIS Research Projects:



Proteolytic Activity of Bacteroides
Rummncola GA33

Reproductive Performance and Preweaning
Survival in Swine by Improved Nutrition and

J. H. Brendemuhl

D. B Bates

C. E. White

ANS02645 Near Infrared Reflectance Spectroscopy
Analysis of Florida Feeds
J. E. Moore


Background and Finishing Florida Feeder

W E. Kunkle

D. D. Johnson

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

Animal Science 37

Physiological and Ecological Relationships
Affecting Biting Flies and Ticks on Pastured
R. S. Sand

Evaluation of Beef Cattle Germ Pasm
Resources Involving Additive and Non-
Additive Genetic Effects

T. A. Olson
M. A. Elzo






D. D. Hargrove

Vernal Transition as a Model for
Folliculogenests and Ovulation
D. C. Sharp

Structure and Regulation of the Porcine
Antilekoprotemase Gene
R. C. Simmen

Insulin-like Growth Factors and Blastocyst
R. C. Simmen

Uteroferrin Gene Expression During Devel-
R. C. Simmen

Bioavailabiity of Mineral Elements for
Ruminants and Nonrummants

C. B. Ammerman
L. R. McDowell


J. H.Conrad

Management Practices for Control of Equine

R. L. Asquith




Evaluation of Tropical Adaptation of
Non-Zebu Cattle Germplasm
T A. Olson

Seedling Vigor, Persistence, and Quality
Determiants of Pennisetum Forages
J. E. Moore

Lutenming Hormone Synthesis and Secre-
tion Regulation in Horses
D.C. Sharp

Refereed Publications:
R-01861 Bazer, F W. Mediators of Maternal Recognition
of Pregnancy in Mammals Proceedings of the
Society for Experimental Biology and Medicine
199.373-384. 1992


Bazer, F. W ; Mrando, M. A.; Ott, T L.,
Hamey, J. P; Dubois, D H.; Schaule, T K.,
Ponczer, C. H.; Hostetler, C.; Johnson, H M.
and Ogle, T. Roles of Ovine Trophoblast
Protein-1 and Estradiol/ Prolactin in the
Establishment of Pregnancy in Sheep and Pigs.
Reproduction, Fertility and Development
04:335-340. 1992

R-02519 Cuesta, P. A.; McDowell, L. R; Kunke, W. E.;
Bullock, F.; Drew, A.; Wilkinson, N S. and
Martin, F G. Serum Selenium and Vitamin E.
and Selenium Concentration in Liver, Milk and
Hair as Affected by Supplementation to Beef
Cattle. International Journal of Animal Science
8-257-262. 1993


Cuesta, P. A.; McDowell, L. R.; Kunkle, W. E.,
Bullock, F.; Drew, A., Wilkinson, N S. and
Martin, F. G. Mineral Concentration in Liver
and Milk of Grazing Beef Cattle as Related to
Season and Location. International Journal of
Animal Science 8:189-193. 1993

R-02507 Cuesta, P A.; McDowell, L. R., Kunkle, W
Bullock, F.; Drew, A.; Wilkinson, N. S. and

Martin, F. G.

Seasonal Variation of Soi and

Forage Mineral Concentrations i North
Florida. Communications in Soil Science and
Plant Analysts 24:335-347. 1993
R-02164 Fields, M J.; Barros, C. M. Watkis, W. B. and
Fields, P A. Characterization of Large Luteal
Cells and their Secretory Granules during the
Estrous Cycle of the Cow. Biology of
Reproduction 46:535-545 1992
R-02642 Fuchs, A. R., Helmer, H.; Behrens, 0.; Liu,
H C.; Antonian, L.; Chang, S. M and Fields,
M. J. Oxytocin and Bovine Parturition: A
Steep Rise in Endometrial Oxytocin Receptors
PrecedesOnset of Labor. Biology of
Reproduction 47.937-944. 1992
R-02314 Henry, P. R; Ammerman, C. B. and Littell,
R.C Relative Bioavailability of Manganese
from Manganese Methionme and Inorganic
Manganese Sources for Ruminants Journal of
Dairy Science 75-3473-3478. 1992
R-01631 Hidiroglou, N.; Charmley, E., Ochoa, L.,
McDowell, L. R. and Hidtroglou, M.
Relationships between Plasma and Hepatic
Alpha-Tocopheroml n Cattle following Oral or
Intra-Muscular Supplementation with Various

Levels and Forms of Alpha-Tocopherol.
of Dairy Science 75:804-810 1992


3 Extension 4 Other UF or Cooneraino Aopnrv



I Resident Instruction 2 Research

38 Animal Science
-- --

1-01757 Hidirouglou, N.; McDowell, L. R.; Papas, A.,
Antapit, M. and Wilkinson, N. S. The
Evaluation of Various Vitamin E Compounds
in Lambs. Journal of Animal Science
70:2556-2561. 1992
R-02898 Lee, C. Y.; Bazer, F. W. and Simmen, F. A
Temporal Expression of Components of the
Insuln-like Growth Factor System in Pig
Mammary Glands and Serum During Pregnancy
and Pseudopregnancy: Effects of
Oestrogennancyany: Effects of Oestrogen.
Journal of Endocrinology 137:473-483. 1993
R-02295 Meade, M. K.; Johnson, D. D. and West, R. L
Streamlined Beef 11: Effect on Storage and
Display Characteristics, Microbiological Quality
and Palatability. Journal of Food Science
57:1041-1045. 1992
R-02294 Meade, M. K.; Johnson, D. D.; West, R. L. and
Balaban, M. O. Streamlined Beef 1: Effect on
Yield, USDA Grade Factors, and Energy and
Time Requirements. Journal of Food Science
57.1038-1045. 1992
R-00248 Merkel, R. C-; McDowell, L. R.; Popenoe, H. L.
and Wilkinson, N. S. Comparison of the
Mineral Content of Milk and Calf Serum from
Water Buffalo. Buffalo Journal 8:9-15. 1992
R-01733 Michel, F. J.; Fliss, M. F.; Bazer, F. W. and
Simmen, R. C. Characterization and
Developmental Expression of Binding Sites for
the Transplacental Iron Transport Protein
Uteroferrn in Fetal Hematopoienc Tissues.
Biology of the Neonate 61:82-91. 1992
R-01758 Njeru, C. A.; McDowell, L. R.; Wilkison,N. S.,
Linda, S. B.; Williams, S. N. and Lent, E. L.
Serum a-Tocopherol Concentration in Sheep
after Intramuscular Injection of DL-a-
Tocopherol. Journal of Animal Science
70-2562-2567. 1992
R-00767 Ochoa, L.; McDowell, L. R.; Williams, S. N.;
Wilkinson, N. S.; Boucher, J. and Lent, E.
Serum and Tissue Tocopherol Concentration in
Sheep Fed Different Sources of Vitamin E.
Journal of Animal Science 70:2568-2573. 1992
R-01725 Odenya, W. 0., Elzo, M. A.; Mannque, C.;
McDowell, L. R. and Wakeman, D. L. Additive
and Nonaddintve Group Genetic Effects on
Serum Calcium, Phosphorus and Magnesium
and Weight at Weaning in an Angus-Brahman
Multibreed Herd. Journal of Animal Science
702065-2071. 1992

Odenya, W. O.; Elo, M. A.; Mannque, C.;
McDowell, L R. and Wakeman, D. L.
Heritabities of and Genetic, Environmental
and Phenotypic Correlations Among Serum
Calcium, Phosphorus and Magnesium and
Weight a Weaning n an Angus-Brahman
Multibreed Herd. Journal of Animal Science
70:2072-2077. 1992
Ott, E. A., Sundlof, S. and Tooker, M. Miner
Content of Soils and Forage from Horse Farms
in Marion County Florida 11. Minerals
Required by Horses. Soil and Crop Science of
Flonda 51:7-14. 1992

R-02101 Ott, E. A.; Sundlof, S. and Tooker, M. Mineral
Content of Soils and Forage from Horse Farms
in Marion County, Florida 1. Lead and
Cadmium. Soil and Crop Science Society
51:3-7. 1992
R-00650 Panagakis, P. B.; Walker, W. R; Buckhn, R. A.
and Combs, G. E. Comparison of Heating
Systems and Protein Sources on the
Performance of Early Weaned Pigs Livestock
Production Science 9:131-136. 1993
R-01304 Rice, L.; Ott, E. A.; Beede, D. K., Wdcox, C J.,
Johnson, E. L. and Lieb, S. Use of Oral
Tolerance Tests to Investigate Disacchande
Digestion m Neonatal Foals. Journal of Animal
Science 70:1175-1181. 1992
R-02693 Rojas, L. X., McDowell, L. R.; Wilkinson, N. S
and Martin, F. G. Mieral Status of Sois,
Forages and Beef Cattle in Southeastern
Venezuela. I. Macrommnerals and Forage Organic
Constituents. International Journal of Animal
Science 8:175-181. 1993


Santana, R. R. and McDowell, L. R. In viro
Digestibility and Crude Protein and Mineral
Concentrations of Guinea grass (Panicum
maximum) Accessions in a Humid Tropical
Region of Puerto Rico. Communications in Soil
Science and Plant Analysis 24:325-334. 1993

R-02874 Simmen, R. C; Ko, Y. and Simmen, F A.
Insulin-hke Growth Factors and Blastocvst
Development. Thenogenology 39-163-175
R-02002 Simmen, R. C.; Michel, F. J.; Fliss, A. E.; Smith,
L. C. and Ventura-Fiss, M. F Ontogeny,
Immunocytochemical Localization and
Biochemical Properties of the Pregnancy-
Associated Uterine Elastase/Cathepsin G
Protease Inhibitor, Anileukoproteinase (ALP).
Endocrinology 130:1957-1965. 1992

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Animal Science

R-03057 Simpson, R. and Conrad, J. H. Intensification
of Cattle Production System in Central
America: Why and When. Journal of Dairy
Science 76-1744-1752. 1993
R-02348 Tuo, W.; Oct, T. L. and Bazer, F. W. Natural
Killer Cell Activity of Lymphocytes Exposed to
Ovine, type I, Trophoblast Interferon.
American Journal of Reproductive Immunology
29:1-9 1993
R-02870 Valle, G; McDowell, L. R. and Wright, D.
Selenium Concentration of Bermudagrass
(Cynodon dactylon) After Spraying with Sodium
Selenate. Communication in Sodi Science and
Plant Analysis 24:1763-1768. 1993
R-01228 van Ravenswaay, R. 0, Henry, P R.;
Ammerman, CB. and Littell, R. C Estimation
of the Relative Bioavailability of Magnesium
Sources for Ruminants as Measured by Urinary
Magnesium Excretion. Animal Feed Science
and Technology 39:13-28. 1992

Research Grants:
Ammerman C. B. Bioavailabilty of Copper-Lysne for
Ruminants. Zmpro Corp 09/01/92-12/31/93. $7,500
Ammerman C. B. Bioavailability of Copper as Copper
Oxychlorde for Chicks. Micronutrients, Inc.
10/15/92-12/31/92. $7,000
Ammerman C. B. Bioavailabdity of Iron as Iron
Methionne for Chicks. Zinpro Corp. 04/15193-
07/14/94. $5,000
Asquith R. L. Safety Evaluation of Oral Moxidectin in
Breeding/Pregnant Mares and Their Unborn/
Newborn Foals. American Cyanamid Co. 04/07/92-
01/01/95. $219,705
Brendemuhl J. H. An Evaluation of an Oral Iron Source
(Iron-Humate) for the Nursing Piglet. Kemiron Inc.
07/01933-10/15/93. $5,000

Hembry F. G. Royalties for Staphylococcal Enterotoxin
and Other Superantigen Therapy for Immunologic.
UF Research Foundation Inc. 05/24/93-12/31/99.
Johnson D. D. Prediction of Tenderness in Diverse Cattle
Types. Fla. Beef Council Inc. 07/06/92-07/05/93.
Kunkle W.. E Effect of Bambermycs (Flavomycin) Fed
Via Free-Choice Supplements on Body Weight
Gains on Pasture Cattle. Hoechst Roussel Co.
03/01/93-10131/93. $60,211
Ott E. A. p-Carotene Supplementation of Mares at Time
of Breeding. BASF Wyandotte Corp 11/01/92-
12/30/94. $23,916
Ott E A Skeletal Development of Horses Effem GmbH.
12/01/92-06/01/94. $35,299
Ott E. A. Effect of Trace Mineral Proteinates on Growth,
Skeletal Development, Hoof Growth and Hoof
Quality of Yearling Horses and Reproductive
Efficiency of Foaling Mares. NutriBasics (a DuPont/
ConAgra Co.). 02/25/93-10/31/94. $40,800
Ott E. A. Skeletal Development of Horses. Effem GmbH
12/01/92-06/01/94. $1,512
Sharp D. C. Lutemnzing Hormone Synthesis and Secretion
Regulation in Horses USDA-CSRS. 09/01/92-
08/31/94. $203,960
Simmen R. C. Uteroferrin Gene Expression During
Development. National Institutes of Health.
07/01/91-06/30/93. $112,124
Simmen R. C. Uteroferrin Gene Expression During
Development (Research Supplement for
Underrepresented Minorities) National Institutes of
Health. 07/01/92-06/30/93 $40,933

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

40 Dairy Science

Dairy Science Bldg. 499
Shealy Drive
Gainesville, FL 32611
Telephone: 904-392-1981
Fax: 904-392-5595
Milking Mgmt.


Byproduct Feedstuffs for Lactating Cows:
Evaluation of Rumen Degradability of Protein
and Energy Availability

H.H. Van Horn


Chm. & Prof., Mastitts &

B. Harris

Management of Animal Waste in Support of
Sustainable Agriculture and Qualty Water

H. H. Van Horn


Assoc. Prof., Biochem.,


Insulin-like Growth Factors and Blastocyst

DAVID K. BEEDE Assoc. Prof., Animal Nutrition

F. A. Simmen



Assoc. Prof.,


Assoc. Prof., Environmental

JR Prof., Nutr.
Prof., Animal Phys. Lac

Genetic Enhancement of Health and
Survival for Dairy Cattle

C. J. Wilcox
H. H. Head

WW.. Thatcher
D. R. Bray

M. A. DeLorenzo P. J. Hansen

& Molecular Biology

Assoc. Prof., Biochemistry

2,3 CHARLES R. STAPLES Assoc. Prof., Forages
1,2 WILLIAM W. THATCHER Grad. Res. Prof.,
Anim. Physiol. Reproduction









Prof., Animal

Prof., Genetics

USDA-CRIS Research Projects:

Optimum Production and Utilization of
Forages for Dairy Cattle in the Subtropics
C. R. Staples

Insulm-like Growth Factor-I (IGF-1)in
Neonatal Growth and Development
F. A. Simmen

Function of Bovine Trophoblast Protein-I
Secreted by the Conceprus

W. W. Thatcher


P. J. Hansen

Reducing Effects of Heat Stress on Reproduc-
ton in Dairy Cattle
P.J. Hansen
Dairy Herd Management Strategies for
Improved Decision Making and Profitability
M. A. DeLorenzo D. K. Beede

Refereed Publications:


Bachman, K. C.; Wilford, D. H., Head, H H,
Sgh, M. and Wilcox, C. J. Milk Yield and
Hormone Levels of Holstein Cows in Response
to Somatotropin Treatment during the Dry
Period. Journal of Dairy Science 75:1883-1890.

R-02477 Badinga, L.; Drancourt, M A.; Wolfenson, D;
Drost, M.; de la Sota, R. L. and Thatcher, W
W. Endocrine and Ovarian Responses
Associated with the First Wave Dominant
Follicle in Cattle. Biology of Reproduction
47:871-883. 1992


Long-term Evaluation of Bovine Somatotro-
pin (bSTH) on Performance of Lactating

Dairy Cows
H. H. Head
C. R. Staples


C. J. Wilcox

Systems for Providing and



Interior Environments for Poultry and

D K. Beede
M. A. DeLorenzo

D. R. Bray

Badinga, L.; Thatcher, W W., Dia:, T; Drost,
M. and Wolfson, D. Effect of Environmental
Heat Stress on Folicular Development and
Sterotdogeness in Lactating Holstein Cows
Therogenology 39:797-810. 1993
Barros, C. M., Betts, J. G.; Thatcher, W W
and Hansen, P J. Possible Mechanisms for
Reduction of Circulating Concentrations of
Progesterone by Interferon-_ in Cows: Effects
on Hyperthermia, Luteal Cells, Metabolsm of
Progesterone and Secretion of Luterning
Hormone. Journal of Endocrinology
133:175-182. 1992

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Dairy Science 41

R-01812 Barros, C. M.; Newton, G. R.; Thatcher, W. W.;
Drost, M., Plante, C. and Hansen, P. J. The
Effect of Bovine4 Interferon-Alpha I-1 on
Pregnancy Rate in Heifers. Journal of Animal
Science 70:1471-1477. 1992
R-02140 Becerril, C. M. and Wicox, C.J. Coat Color
Determination from Registry Certificates in
Holsteins. Journal of Dairy Science
75:3582-3586. 1992
R-02786 Becerrt, C. M.; Wilcox, C. J.; Lawlor, T. J.,
Wiggans, G. R. and Webb, D. W. Effects of
Percentage of White Coat Color on Holstein
Production and Reproduction. Journal of Dairy
Science 76:2286-2291. 1993
R-02265 Betts, J. G. and Hansen, P. J Regulation of
Prostaglandin from Epithelial and Stromal Cells
of the Bovine Endometnum by Interleukin-18,
Interleukin2, Granulocyte-macrophage Colony
Life Sciences 51-1171-1176. 1992
R-02368 Cole, J. A. and Hansen, P.J. Administration of
Recombinant Bovine Somatotropm Alters
Responses of Lactating and Nonlactanng
Holstein Cows to Heat Stress. Journal of the
American Veterinary Medical Association
203:113-117. 1993
R-02678 de la Sota, R. L.; Lucy, M. C.; Staples, C R.
and Thatcher, W W. Effects of Recombinant
Bovine Somatotropin (Sometribove) on
Ovarian Function in Lactanng and Nonlactating
Dairy Cows. Journal of Dairy Science
76:1002-1013. 1993
R-01629 DeLorenzo, M. A.; Spreen, T. H.; Bryan, G. R.
and Beede, D. K. Optimizing Model for
Insemination, Replacement, Seasonal
Production and Cash Fow: I. Journal of
Dairy Science 75.885-896. 1992
R-01247 Drost, M.; Savio, J. D; Barros, C M.; Badinga,
L. and Thatcher, W W. Ovartectomy Per
Vagmam in the Cow. American Veterinary
Medical Association 200 337-339. 1992
R-01675 Ealy, A. D; Drost, M., Barros, C. M. and
Hansen, P.J. Thermoprotection of
Preimplantatton Bovine Embryos from Heat
Shock by Glutathione and Taurne.
Biochemical and Biophysical Research
Communicanons 16.125-131. 1992
R-01867 El Amin, F M. and Wilcox, C. J. Milk
Composition of Majaheim Camels. Journal of
Dairy Science 75:3155-3157 1992
R-01695 Elvinger, F, Narzke, R. P and Hansen, P J
Interactions of Heat Stress and Bovine

Somatotropin Affecting Physiology and
Immunology of Lactating Cows. Journal of
Dairy Science 75.449-462. 1992

R-02027 Gottshall, S. L. and Hansen, P.
Lymphocyte Subpopulantons in
Endometrium by Progesterone
76:636-641. 1992

J. Regulation of
the Sheep

R-01975 Hansen, P. J. and Skopets, B. The Time-Course
for Induction by Progesterone of Lymphocyte-
Inhibitory Activity in Uterine Secretion of
Ewes. Veterinary Record 131:371-372. 1992
R-02438 Harris, Jr, B.; Dormney, D. E., Smith, W. A.,
Van Horn, H. H. and Wilcox, C J Effect of
Concentration of Crude Protein and Feather
Meal, and Yeast Culture on Various Production
Parameters in Lactating Dairy Cows, Journal of
Dairy Science 75 3524-3530 1992
R-02711 Head, H. H., Kull, R. C.; Campos, M S.;
Bachman, K. C; Wilcox, C J; Cline, L L and
Hayen, M. J. Milk Yield, Milk Consumption,
and Behavior of Holstein Cows in Response to
Jet Aircraft Noise Before Milkkmg. Journal of
Dairy Science 76:1558-1567. 1993
R-02302 Johnson, D. D., Van Horn, H. H.; West, R. L.
and Harris, Jr., B Effect of Calf Management on
Carcass Characteristics and Palatability Traits of
Veal Calves Journal of Dairy Science 75 2799-
2804. 1992
R-03059 Kamwania, L. A. and Hansen, P.J Regulation
of Proliferation of Bovine Oviductal Epithelial
Cells by Estradiol- Interactions with
Progesterone, Interferon-r and Interferon-a.
Hormone and Metabolic Research. p. 499-502.


Lee, C Y., Chung, C. S. and Simmen, F. A.
Ontogeny of the Porcine Insulin-like Growth
Factor System. Molecular Cellular
Endocrinology 93:71-80 1993

R-02525 Lucy, IM C.; Beck, J.; Staples, C. R., DelaSota,
R L. and Thatcher, W W. Follicular Dynamics.
Plasma Metabolites, Hormones and Insulin-ike
Growth Factor (IGF-) in Lactating Cows with
Positive or Negative Energy Balance During the
Preovulatory Period. Reproduction Nutrition
Development 32 331-341. 1992
R-02677 Lucy, M. C., de la Sota, R L., Staples, C. R.
and Thatcher, W. W. Ovarian Follicle
Populations in Lactating Dairy Cows Treated
with Recombinant Bovine Somatotropn
(Sometrbove) or Saline and Fed Diets Differing
in Fat Content and Energy. Journal of Dairy
Science 76"1014-1027 1993

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

42 Dairy Science

Lucy, M C.; Savio, J. D.; Badinga, L.; de la Sota,
R. L. and Thatcher, W. W. Factors Regulating
Ovarian Follicular Dynamics in Cattle. Journal
of Animal Science 70:3615-3626. 1992
Lucy, M. C.; Staples, C. R. and Thatcher,
W. W. Influence of Diet Compositon, Dry
Matter Intake, Milk Production and Energy
Balance on Time of Postpartum Ovulation and
Fertility in Dairy Cows. Animal Production
54:323-331. 1992
Malayer, J. R.; Hansen, P. J. and Pollard, J W.
Alanme and Taurine Reduce Deleterious Effects
of Elevated Temperature on Preimplantation
Mouse Embryos. Cell Biology International
Reports 53:689-694. 1992
Morse, D.; Head, H H. and Wilcox, C. J.
Disappearance of Phosphorus in Phytate from
Feeds Incubated In Vitro and from Rations Fed
to Lactating Dairy Cows. Journal of Dairy
Science 75:1979-1986. 1992
Morse, D.; Head, H. H.; Wilcox, C. J.; Van
Horn, H. H.; Hissem, C. D. and Harris, Jr., B.
Effects of Concentrations of Dietary Phosphorus
on Amount and Route of Excretion. Journal of
Dairy Science 75:3039-3049. 1992
Rut, T. M.; Sanchez, W. K.; Staples, C. R. and
Sollenberger, L. E. Comparisons of 'Mott Dwarf
Elephantgrass Silage and Corn Silage as Dietary
Forages for Lactating Dairy Cows. Journal of
Dairy Science 75:533-543. 1992
Savio, J. D; Thatcher, W. W; Badinga, L.; de la
Sata, R. L. and Wolfenson, D Regulation of
Dominant Follicle Turnover During the
Oestrous Cycle in Cows. Journal of
Reproduction and Fertility 97:197-203. 1993
Savio, J. D.; Thatcher, W. W.; Morrs, G. R.;
Entwistle, K.; Drost, M. and Mattiacci, M. R.
Low Plasma Concentration of Progesterone
Affects Follicular Turnover and Fertility in
Cattle. Journal of Reproduction and Fertility
98:77-84 1993
Silva, H. M.; Wilcox, C. J. and Thatcher, W. W
Factors Affecting Days Open, Gestation Length
and Calving Interval in Florida Dairy Cattle.
Journal of Dairy Science 75:288-293 1992
Simmen, F. A., Simmen, R. C.; Getsert, R. D;
Martinat-Botte, F.; Bazer, F W. and Terqui, M.
Differential Expression, During the Estrous
Cycle and Pre- and Post-Implantation
Conceptus Development, of Messenger


Ribonucleic Acids Encoding Components of the
Pig Uterine Insulin-Like Growth Factor System.
Endocrnology 130:1547-1556. 1992
Skopets, B.; L1, J., Thatcher, W. W.; Roberts,
R. M. and Hansen, P. J. Inhibition of
Lymphocyte Proliferation by Bovine
Trophoblast Protein-1 (Type I Trophoblast
Interferon) and Bovine Interferon-a[pha-.
Veterinary Immunology and Immunopathology
34:81-96. 1992
Smith, W. A.; Harris, Jr., B.; Van Horn, H H
and Wilcox, C. J. Effects of Forage Type on
Production Performance of Dairy Cows
Supplemented with Whole Cottonseed and/or
Animal Tallow. Journal of Dairy Science
76:205-215. 1993
Thatcher, W W.; Danet-Desnoyers, G. and
Wetzels, C. Regulation of Bovine Endometral
Prostaglandin Secretion and the Role of Bovine
Trophoblast Protein-1 Complex. Reproduction,
Fertdsty and Development 4:329-334. 1992

R-02675 Thomas, C. V.; Bray, D. R. and DeLorenzo,
M. A. Evaluation of 50 50 and 70:30 Pulsation
Ratios in a Large Commercial Dairy Herd.
Journal of Dairy Science 76.1298-1304 1993
R-02795 Thomas, C. V.; DeLorenzo, M. A. and Bray,
D R. Predicting Individual Cow Milking Time
for Milking Parlor Simulation Models. Journal
of Dairy Science 76:2184-2194. 1993


Thomas, C. V; DeLorenzo, M. A.; Beede, D. K.
and Spreen, T. H Predicting Daily Feed Costs
for Dairy Management Models. Journal of Dairy
Science 75:3309-3121. 1992

R-01112 Thomas, T. P ; Leslie, M. V. and Hansen, P. J
Retmol Binding Protein is Produced by the
Bovine Endometrum and Accumulates in
Uterine Secretion in a Progresterone-dependent
Manner. Animal Reproduction Science
27:55-66. 1992



Van Cleef, J ; Lucy, M. C.; Wilcox, C. J and
Thatcher, W. W. Plasma and Milk Progesterone
and Plasma LH in Ovanectomized Lactating
Cows Treated with New or Used Controlled
Internal Drug Release Devices. Animal
Reproduction Science 27.91-106. 1992
Wang, C. and Beede, D. K. Effects of Dietary
Magnesium Intake on Acid-Base Status and
Calcium Metabolism of Nonlacating Holstein
Cows Fed Acidogenic Ammonium Salts.
Journal of Dairy Science 75 829-836. 1992

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

Dairy Science 43

R-01494 Want, C and Beede, D. K Influence of Dietary
Ammonium Chloride and Ammonium Sulfate
on Acid-Base Status and Calcium Metabolism of
Nonlacating Jersey Cows. Journal of Dairy
Science 75:820-828. 1992


Wolfenson, D.; Bartol, F F.; Badiga, L.; Barros,
C. M., Marple, D. N., Cummins, K., Wolfe, D.;
Lucy, M. C.; Spencer, T E. and Thatcher, W.
W. Secretion of PGF2a and Oxytocn During
Hyperthermia n Cyclic and Pregnant Heifers.
Therlogenology 39:1129-1141. 1993

Research Grants:
Bray D. R. Dairy Wipe Reduction Trial. The Dexter
Corporation. 08/01/92-12/31/92. $5,000
Bray D. R. Dexter Dairy Wipe Preference Test. The
Dexter Corporation. 08/15/92-12/21/92. $1,000
Delorenzo M. A. Dairy M. A. Dary Management Project. Msc
Donors. 04/12/91-04/11/94. $37.000

Hansen P J. Reducing Effects of Heat Stress on
Reproduction in Dairy Cattle. USDA-CSRS
(Tropical Agricultural Research). 07/01/92-06/30/93.
Hansen P. J. Progesterone-Induced Uterine
Immunoregulatory Proteins. National Institutes of
Health. 08/01/90-03/31/96. $58,378
Natzke R. P. Increasing Efficiency of Milk Production
in Florida. Florda Dairy Farmer's Association.
04/15/88-04/15/95. $88,067
Staples C. R. The Effect of Abomasal Infusion of Animal
Fats ... Dairy Cows. Fats and Proteins Research
Foundation. 12/15/92-06/15/94. $17,984
Staples C. R. Nutritional and Reproductive Management
for Improved Reproduction of Dairy Cows. USDA-
CSRS (Tropical Agricultural Research). 07/01/93-
06/30/94. $43,300
VanHorn H. H. Effect of Zn-, Mn-, and Cu Protenates
on Hoof Health. Nutr-Basics (a DuPont/ConAgra
Co.). 03/31/93-12/31/93. $11,520

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

44 Entomology and Nematology


UF/IFAS, USDA-CRIS Research Projects:


Biological Control of Pest Mole Crickets

Building 970, Hull Road
Gaiesville, FL 32611
Telephone: 904-392-1901
Fax: 904-392-0190

J. H. Frank
D. G. Boucias
F. D. Bennett

Chair & Prof

1,2 JON C. ALLEN Assoc. Prof., Population Dynam-
tcs & Systems Anal.
1,2 CARL S. BARFIELD Prof., Pest. Mgt



Prof., Insect Pathology
of., Vet. Ent.

Visiting Prof., Radiation




Prof., Nematology
, Ext. Nematology

T. J. Walker
G. C. Smart

Application of Integrated Agrotechnology for
Crop Production and Quality Protection
J. C. Allen

Application of Population Ecology in the
Management of Plant Parasitic Nematodes
R. T. McSorley

Host-parastte Relationships of Nematodes on
Landscape Ornamentals

R. T McSorley

R. A. Dunn

JOHN L. FOLTZ Assoc. Prof., Forestry



Prof., Biological Control

VIRENDRA K. GUPTA Prof., Systematics


Development and Testing of Multi-Lingual
Programmed Instructional Materials in Pest
Management and Plant Protection

C. S. Barfield

Prof., Immatures

DONALD W. HALL Prof., Med. Ent.
HARLAN G. HALL Assoc. Prof., Honey Bee


Eminent Scholar, Biocontrol

FREDDIE A. JOHNSON Prof., Extension




Prof., Extension

JAMES E. LLOYD Prof., Systematics
JAMES E. MARUNIAK Assoc. Prof., Genetic

Resistance of Crop Plants


Asst. Prof. Pest

1,2 ROBERT T. McSORLEY Prof., Nematology
1,2 JAMES L. NATION Prof., Physiology
2,3 MALCOLM T. SANFORD Prof., Apiculture
2,3 DONALD E. SHORT Prof, Extension
1,2 FRKANK SLANSKY JR Prof, Nutrtional Ecology




Prof., Nematology

JERRY L. STIMAC Prof., Population Ecologist




Prof., Ecology

Prof., Insect Toxicology


J. R. Strayer

Identification, Behavioral Ecology, Genettcs
and Management of African Honeybees
H. G. Hall

Biological Factors Affecting the Abundance
of the Sweetpocato Whitefly in the Carib-
bean, Including Florida
F. D. Bennett

Biocontrol of Plant-Parasitic Nematodes with
Pasteuna spp
D. W. Dickson

Systematics, Ecology, and Behavior of Insects
T. J. Walker

Toxicology of Agriculturally Important Insect
Pests of Florida
S. S. Yu

Systematics and Behavioral Ecology of
Lampyridae (Coleoptera)
J. E. Lloyd

Biological Control of Selected Arthropods,
Pests and Weeds through Introduction of
Natural Enemies

F D. Bennett
D. H. Habeck

J. H. Frank
M. A. Hoy

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Entomology and Nematology 45

Biology and Management of Nematodes
Affecting Agronomic Crops

D. W. Dickson



R. A. Dunn

Development of Entomopathogens as
Control Agents for Insect Pests

D G. Boucias
J. E. Marunak
J. L. Stmac


J. L. Capmera
G, C. Smart
D. W. Hall

Managing Plant-parasitic Nematodes in
Sustainable Agriculture with Emphasis on
Crop Resistance
D. W. Dickson

Development of Cropping Systems for
Nematode Management on Agronomic and
Horticulture Crops

D. W Dickson

R. T. McSorley



Alternative Management of Pickleworm and
Melonworm in Cucurbit Vegetable Crops
J. L. Capinera

Physiological and Ecological Relationships
Affecting Biting Flies and Ticks on Pastured


Biological Control and its Economics
Southern United States
I. H. Frank F. D. Bennett

in the

Refereed Publications:


J.F. Buter




Taxonomic Studies on the Ichneumontdae
(Parasitic Hymenoptera)
V. K. Gupta

Analysis of Insect Mycopathogen Host
Cellular Recognition Interaction
D. G. Boucias

Household Pest Management

P. G. Koehler



R S Patterson

Enhancing Analysis of DNA to Study
African and European Honey Bee
H. G. Hall

Biological Control of Pickleworm and

Aguillera, M. M.; Hodge, N C.; Stall, R. E. and
Smart, G. C. Bacterial Symbionts of Stemernema
scaptensc. Journal of Invertebrate Pathology
62:68-72. 1993

R-02880 Allen, J. C.; Fotz, J. L.; Dixon, W. N; Liebhold,
A. M.; Colbert, J. M.; Regniere, J; Gray, D R.;
Wilder, J. and Christie, 1. Will the Gypsy Moth

Become a Pest in Florida?.
76:102-113. 1993

Florida Entomologist

R-02869 Allen, J. C.; Schaffer, W M. and Roscoe,
D. Chaos and Extinction i Ecological
Populations. Nature. 364:229-232. 1993
R-02104 Allen, J. C; Yang, Y, Knapp, J. L. and Stansy,
P. A. The Functional Response, Reproductive
Function and Movement Rate of a Grazing
Herbivore: The Citrus Rust Mite on the
Orange. Florida Entomologist 75:72-83. 1992


J. L. Capnera





Chemical Ecology of Trtrophic Interactions
H J. McAuslane

Enhanced Biological Control of the Green
Scale, Coccus Viridis
F. D. Bennett

Establishment and Dispersal of Pesticide-
Resistant Natural Enemies
M. A. Hoy

Physiological and Biochemical Effects of
[rradiation Upon the Carrbean Fruit Fly
J. L. Nation

Atkinson, T H.; Mangold, J. R. and Koehler,
P.G Two Neotropical Cockroaches of the
Genus Ischnoptera (DictyopteraBlattelhdae)
Established in Florida. Florida Entomologist

75:109-115 1
R-02708 Bennett, F. D.

Do Introduced Parasitoids

Displace Native Ones7
76:54-63. 1993



Florida Entomologist

Bennett, F. D., Glenn, H. and Baranowski,
R. M. Goetheana shakespean (Hymenoptera.
Eulophidae) an Immigrant Parasitod of Thrips

in Florda and Guadeloupe?
76-395-397 1993
Boucias, D. G and Pendland

Florida Entomolgist

, 1 C. Studies

on the Galatose Bmnding-lectin from the
Beer Armyworm, Spodoprera exigua Insect
Biochemistry and Molecular Biology
23:233-242 1993

3 Extension 4 Orher eF or C(nnonprmno Aoncv,


1 Resident Instruction 2 Research

46 Entomology and Nematology

1-02074 Capinera, J. L. Differentiation of Nymphal
Instars in Scdustocerca amencarna
(Orthoptera:Acrididae). Florida Entomologist
76:175-179. 1993
k-02099 Capinera, J. L. Host Plant Selection by
Schistocercaamericana (Orthoptera: Acrididae)
and Role of Senstization in Preference
Intensity. Environmental Entomology
1122:127-133. 1993
R-02135 Capera, J. L. and Epsky, N. D. Potential for
Biological Control of Soil Insects in the
Canbbeann Basin Using Entomopahogenic
Nematodes. Florida Entomologist 75:526-532.
R-02270 Epsky, N. D. and Capinera, J. L. Quantification
of Invasion of Two Strains of Stemnenema
carpocapsae (Weser) into Three Lepidopteran
Larvae. Journal of Nematology 25:173-193.
R-02309 Evans, G. A.; Cromroy, H. L. and Ochoa, R.
The False Spider Mites of Honduras
(Tenuipalpidae: Acari). Florida Entomologist
76:1-25. 1993
R-02163 Frank, J and McCoy, E. D. The Immigration
of Insects to Florida, with a Tabulation of
Records Published Since 1970. Florida
Entomologist 75:1-28. 1992
R-02957 Frank, J. H. and McCoy, E. D. The Introduction
of Insects into Florida. Florida Entomologist
76:1-53. 1993
R-01408 Frank, J. H.; Parkman, J. P. and Hudson, W. G.
Use of a Sound-Emitter to Inoculate a Parasitic
Nematode into Pest Mole Cricket Populations
(Orthoptera. Gryllotalpidae and Rhabdiida:
Steinemematidae). Biocontrol Science and
Technology 76:75-82. 1993
R-02556 Gallaher, R. N. and McSorley, R. Nematode
Densities Following Seven Cultivars of Cowpea.
Nematroptca 23:21-26. 1993
R-02432 Hall, D W. and Hostetder, N. Septate
Gregannes From Reucultermes flavipes and
Reucultermes virgiucus (Isoptera:
Rhinotermitatdae). Journal of Protozoology
40:29-33. 1993
R-02071 Hall, H. G. DNA Studies Reveal Processes
Involved in the Spread of New World African
Honeybees. Florida Entomologist 75:51-59.

R-02070 Hall, H. G. Further Characterization of Nuclear
DNA RFLP Markers that Distinguish African
and European Honeybees. Archives of Insect
Biochemistry and Physiology 19:163-175. 1992
R-02072 Hall, H. G. Suspected African Honeybee
Colonies in Florida Tested for Identifying DNA
Markers. Florida Enomologist 75:257-266.
R-02073 Hall, H. G. and McMichael, M. A. European
Honey Bee Colonies Kept at High Elevations in
Costa Rica Tested for African DNA Markers
BeeScience 2:25-32. 1992
R-02413 Harz, B. and Dickson, D. W. Effect of
Temperature on Attachment, Development, and
Host-Parasite Interactions of Pasteuria enetrans
on Melodogyne arenaria. Journal of Nematology
24:512-521. 1992


Hennessey, M. K.; Nigg, N. and Habeck, D. H.
Mosquito (Dptera:Culicidae) Adulticide Drift
Into Wildlife Refugees of the Florida Keys
Environmental Entomology 21:714-721 1992

R-01687 Hogsette, J. A. and Koehler, P.G. Comparative
Toxicity of Aqueous Solutions of Boric Acid and
Polybor to House Fles (Diptera:Muscidae)
Journal of Economic Entomology 85:1209-1212



Hung, S. Y. and Boucias, D G. Influence of
Beauveria basszana on the Cellular Recognition
Response of the Beet Armyworm, Spodoptera
exigua. Journal of Invertebrate Pathology
160:152-158. 1992
Johnson, R N.; Young, D. G. and Butler, J. F
Trypanosome Transmission by Corethrella nrThu
(Diptera:Chaobordae) to the Green Treefrog,
Hyla cmerea (Anura:Hylidae). journal of
Medical Entomology 30:3-4. 1993

R-01294 Kern, Jr., W. H.; Koehler, P. G. and Patterson,
R. S. Temporal Patterns of Cat Flea
(Siphonaptera:Pu[icidae) Egg Producton and
Defecation. Journal of Medical Entomology
29.203-206 1992
R-01469 Kern,,Jr., W. H.; Koehler, P. G.; Patterson, R. S.
and Wadletgh, R. W Spectrophotometric
Method of Quantifying Adult Cat Flea
(Siphonaptera: Pulicidae) Feces. Journal of
Medical Entomology 29'221225. 1992
R-01296 Khmaszewski, J. and Frank, J. H. New
Distributional Data for Nearctic Aleochara
Gravenhorst (Coleoptera.Staphylnidae).
Coleopterists' Bullen 46 281-285. 1992

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Entomology and Nematology

R-01541 Khmaszewski, J. and Frank, J. H. New
Distributional Data for Nearctic Myllaena
Erichson (Coleoptera:Scaphylinidae).
Supplement 2. Coleoptersts' Bulletin
46397-402. 1992
R-01298 Klimaszewsk, J. and Frank, J. H. New
Distributional Data for New World Gymnusin
and Denopsmni, with Description of a New
Species (Coleoptera:Staphyinidae).
Coleopterists Bullein 46:242-249. 1992
R-01470 Koehler, P. G.; Patterson, R. S. and Martin,
W.R. Susceptibility of Cockroaches
(Dictyoptera:Blattelidae, Blattidae) to Infection
by Stenernema carpocapsae. Journal of Economic
Entomology 85:1184-1187. 1992
R-02555 Koehler, P. G ; Strong, C. A.; Patterson, R. S.
and Valles, S. M. Differential Susceptibility of
German Cockroach (Dictyoptera: Blattellidae)
Sexes and Nymphal Age Classes to Insecticides.
Journal of Economic Entomology 86:785-792.
R-02021 Mahmood, F and Alexander, J. B. Immature
Stages of Nermapalpus nearctucus
(Diptera:Psychodidae). Florida Entomologist
75:171-178. 1992
R-01964 Mashela, P.; McSorley, R. T and Duncan, L. W
Pathogenicity and Reproduction of Belanolarmus
longicaudatus and Hopiolaimus galeatus on
Alyceclover. Journal of Nematology 24:438-
441. 1992
R-02897 McSorley, R. and Gallaher, R. N. Population
Dynamics of Plant-Parasitic Nematodes on
Cover Crops of Corn and Sorghum. Journal of
Nematology 253. 1993


McSorley, R. T. Nematological Problems in
Tropical and Subtropical Fruit Tree Crops.
Nematropica 22:103-116. 1992

R-02279 McSorley, R T. and Gallaher, R. N.
Comparison of Nematode Population Buildup
on Six Summer Crops at Seven Sites Journal of
Nematology 24:699-706. 1992
R-01691 McSorley, R T.; Dickson, D. W.; Candanedo-
Lay, E. M.; Hewlett, T E. and Frederick, J. J.
Damage Functions for Melouiogyne arenaria on
Peanut. Journal of Nematology 24:193-198.


Moser, B. A.; Koehler, P. G. and Patterson, R. S
Effect of Methoprene and Diflubenzuron on Cat
Flea (Siphonaptera: Pulicidae) Larval
Development. Journal of Economic Entomology
85:112-116. 1992


Nadel, H., Frank, J. H. and Knight, Jr, R.
Escapees and Accomplces: The Naturalization
of Exotic Ficus and their Associated Faunas in
Florida. Florida Entomologist 75:29-38. 1992

R-01482 Need, J. T.; Butler, J. F. and Peck, A. B.
Cellular Responses of Laboratory Mice to
Feedings of Orrthodoros talaje Larvae. Journal
of Medical Entomology 29:423-429 1992


Nguyen, K. B. and Smart, Jr, G. C. Addendum
to the Morphology of Stemrnenma scaptensa.
Journalof Nematology 24:478-48. 1992

R-00968 Nguyen, K.B.
of Seernmenma
1990. Journal

and Smart,Jr C. Life Cycle
scaptensca Nguyen and Smart,
ofNematology 24:160-169 1992

R-02207 Nguyen, K. B. and Smart, Jr., G. C. Stemnenema
neocuraths n. sp. (Rhabdtrda:Sremenemeatidae)
and Key to Species of the Genus. Journal of
Nematology 24:463-477 1992
R-02776 Nguyen, K. B. and Smart, Jr, G C.
Ultrastructure of Stmernerma anomah Kozokoi,
1984. Journal ofNematology 25:486-492. 1993



Oi, D. H. and Pereira, R. iM. Ant Behavior and
Microbial Pathogens. Florida Entomologist
76:63-74 1993
Parkman, J P. and Frank, J. H. Infection of
Sound-Trapped Mole Crickets, Scapteriscus spp.,
by Stenemrema scaptensc. Florida Entomologist
75:163-165. 1992

R-03002 Parkman, J. P.; Frank, J. H ; Nguyen, K. B.
and Smart, G. C. Dispersal and Effects of
Stewmemema scapteensa (Rhabdinda:
Steinemematidae) after Inoculative
Apphcations for Mole Crickets Control.
Biological Control 3 226-232. 1993


Parkman, J. P; Hudson, W. G.; Frank, JH
Nguyen, K. B. and Smart,Jr., G. C. Initial
Releases of Stemernema scapteisca
(Rhabdttda:Semernemanidae) for Control of
Scaptenscus spp. Mole Crickets
(Orthoptera.Gryllotalpidae) in Pastures Journal
of Entomological Science 28182-190 1993

R-01782 Peck, S. B; Walker, T. J. and Capnera, J. L.
A Distributional Review of the Orthoptera of
Florida. lorida Entomologist 75:329-342. 1992
R-02857 Pendland, J. C., Hung, S. Y. and Bouctas, D. G.
Evasion of Host Defense by m wvvo Produced
Protoplasts of the Insect Mycopathogen
Beauvena bassZana. Nature 175 5962-5969 1993

3 Extension 4 Other UF or Cooperatin Avencv

1 Resident Instruction 2 Research

Entomology and Nematology

R-02325 Pereira, R. M. and Stimac, J. L. Transmission of
Beauvena basszana within Artificial Red
Imported Fire Ant (Solenopsis inwcra) Nests in
the Laboratory. Environmental Entomology
21:1427-1432. 1992
R-02234 Pereira, R. M.; Alves, S. B. and Stimac, J. L
Growth of Beauvera bassiana in Fire Ant Nest
Soil with Amendments. Journal of Invertebrate
Pathology 62:9-14. 1993
R-02233 Pereira, R. M.; Simac, J. L. and Alves, S B.
Dose-Response of the Red Import Fire Ant
Workers, Soienopsis mica, to Beauverm bass ana
conidia. Journal of Invertebrate Pathology
61:156-161. 1993
R-02383 Polaszek, A.; Evans, G and Bennett, F. D
Encarsia Species (Hymenoptera: Aphelinidae),
Parasitoids of Bemisia tabanc (Homoptera
Aleyrodidae) A Preliminary Guide To
Identification. Bulletin of Entomological
Research 82:375-392. 1992
R-02136 Powers, L. E. and McSorley, R. T. The
Energetics of Meloudogyne mcognica on Resistant
and Susceptible Alyceclover Genotypes. Journal
of Nematology 25 2:257-264. 1993
R-01305 Powers, L. E.; Dunn, R. A.; McSorley, R. T.,
Baltensperger, D. D. and Wofford, D. S. Effects
of Resistan ce Ayceover on Root-Knot
Nematode Populations. Tropical Grasslands 26
1. 1992
R-01147 Rahi, G. S.; Rich, J. R. and Hodge, C. H.
Ethoprop Depletion from Soil as Influenced by
Four Levels of Simulated Rainfall. Journal of
Nematology 24:642-647. 1992
R-02560 Skelley, P. E. A Method of Genitalia
Preparation and Dry Preservation for
Coleoptera. Proceedings of the Entomological
Society of Washington 95:131-138. 1993
R-01788 Slansky, Jr., F. and Wheeler, G.S Feeding and
Growth Responses of Laboratory and Field
Strais of Velvetbean Caterpillars
(Lepidoptera:Noctutdae) to Food Nutrient Level
and Allelochemicals. Journal of Economic
Entomology 85:1717-1730. 1992
R-02227 Stimac, J. L.; Peretra, R. M.; Alves, S. B. and
Wood, L. A. Effects of Beauverna bassiaa
Applied to Laboratory Colonies of Solenopsis
mvcta in SoiL Journal of Economic Entomology
86:2:348-352. 1993

Sumac, J. L.; Pereira, R. M.; Alves, S. B. and
Wood, L. A. Mortality of Laboratory Colonies


of Solenopsis inicta treated with Beauvena
bassiana Journal of Economic Entomology
86:1083-1087. 1993
Sutter, D. R.; Koehler, P. G. and Patterson, R. S.
Dietary Allopurinol and Sulfinpyrazone Effects
on German Cockroach Survival, Development
and Reproduction (Dictyoptera:Blattellidae)
Journal of Econoic Entomology 85:117-122.
Valles, S. M. and Capinera, J. L. Periodcity of
Attraction of Adult Melonworm, Daphanma
hyanara. Florida Entomologist 75:390-392.
Valles, S. M. and Capinera, J L. Response of
Southern Armyworm, Spodoptera endana
(Lepidoptera: Noctuidae), Larvae to Selected
Botanical Insecticides and Soap. Journal of
Economic Entomology 10:145-153 1993
Valles, S. M.; Heath, R. R. and Capiera, J. L.
Production and Release of Sex Pheromone by
Diaphania nlda.s (Lepidoptera:Pyralidae):
Periodicity, Age, and Density Effects. Annals
of the Entomological Society of America
85:-72-735. 1992
Walker, T. J. Phonotaxis in Female Ormza
ochracea (Diptera:Tachindae), a ParasitoLd of
Field Crickets. Journal of Insect Behavior
6:389-410. 1993
Walker, T J. and Whitesell, J.J. A Superior
Trap for Migrating Butterflies. Journal of
Leopidopterists Society 47:140-149. 1993
Wheeler, G. S.; Slansky, Jr., F. and Yu, S. J Fall
Armywom Sensitivity to Flavone: Limited
Role of Basal and Induced Detoxification
Enzyme Activity. Journal of Chemical Ecology
19:645-667. 1993

R-02115 Wheeler, G. S.; Slansky, Jr., F and Yu, S J
Laboratory Colonization Has Not Reduced
Constitutive or Induced Polysubstrate
Monooxygenase Activity in Velvetbean
Caterpillars Journal of Chemical Ecology
18:1313-1325. 1992
R-01369 Yu, S.J. Detection and Biochemical
Characterization of Insecticide Resistance in the
Fall Armyworm. Pesticide Biochemistry and
Physiology 85.675-682 1992
R-02567 Yu, S. J. Inheritance of Insecticide Resistance
and Microsomal Oxidases in the Diamondback
Moth (Lepidoptera: Yponomeutidae). Journal of
Economic Entomology 86:680-683 1993

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research

Entomology and Nematology

R-02777 Yu, S. J and Hsu, E. L. Induction of
Detoxification Enzymes in Phytophagous
Insects: Roles of Insecticide Synergists, Larval
Age and Species. Archives of Insect
Biochemistry and Physiology 24:21-32. 1993
R-02215 Yu, S.J. and Nguyen, S N. Detection and
Biochemical Characterizaton of Insecticide
Resistance in the Diamondback Moth. Pesticide
Biochemistry and Physiology 44-74-81. 1992


Zoebisch, T.G.;Stmac, J. L. and Schuster, D.J.
Methods for Estimating Relative and Absolute
Densities of Adult Liriomyza tnfoh (Burgess)
(Diptera: Agromyzdae) in Staked Tomato
Fields. Journal of Economic Entomology

86:523-528. 1993

Research Grants:
Barfield C. S. Use of Sex Pheromone &
Entomopathogenic Nematodes for Control of Sweet
Potato Weevil, Cylas formncainus (Fabncius)
International Potato Center. 11/01/90-10/31/93.

BouciasD. G.

Chemical Ecology and Biochemistry of Pest

Lepidoptera. USDA Agricultural Research Service.
07/01/90-06/30195. $40,000
Butler J. F. Evaluation of Semiochemicals as Attractants
and Repellants for House Flies and Other
Arthropods Intl Flavors & Fragrances 07/01/87-


ButlerJ F.


Evaluation of Semiochemicals as Attractants

and Repellents for House Flies and Other
Arthropods. Intl Flavors & Fragrances. 07/01/87-
06/30/93. $1,876

ButlerJ. F.

Evaluation of Semiochemacals as Attractants

and Repellants for House Flies and Other
Arthropods. Ind Flavors & Fragrances. 07/01/87-
06/30/94. $62,000

Capinera J

L. FAO/IAEA Quarantine Treatment Course.

United Nations (various). 12/01/92-02/28/93.

Capinera J. L

Microbial Control of Grasshoppers Florida

Department of Agriculture & Consumer Services.
03/17/93-09/30/93. $20,000
CapneraJ L. Peace Fellowship for Safaa Moustafa Abo-
Taka. Egyptian Embassy 02/28/93-08/27/93. $2,500
Cromroy H. L. Acarcide Toxicity Trial. Hoechst Roussel
Co. 01/01/93-12/31/93 $10,620

Dickson D. W. Analysis of Benefits Associated With Use
of 1,3-dicholoropropene, Aldicarb, and Fenamiphos.
University of Georgia. 06/01/92-05/31/93 $12,500
Dickson D. W. Development of Cropping Systems for
Nematode Management on Agronomic and
Horticultural Crop. USDA-CSRS (Low Input
Sustainable Agriculture). 02/01/92-01/31/95.

Dickson D. W.

Integrated Pest-nematode Management

in Selected Egyptian and USA Cropping Sys
USDA Office International Cooperation &
Development. 10/01/90-09/30/93 $10,634


Dickson D. W. Peace Fellowship for Mohammed El Amin
Sweelam. Egyptian Embassy. 02/28/93-08/27/93.
Dickson D. W. Biological Control of Root-knot
Nematodes. USDA-CSRS (Integrated Pest

Management). 07/01/93-06/30/95


Dickson D. W. Integrated Pest-Nematode Management
in Selected Egyptian and USA Cropping Systems.
USDA Office International Cooperation &
Development. 10/01/90-04/01/94. $33,000
Dunn R A. Evaluation of H4-206n as a Turf Nematicide.
Westbndge Research Group (Westbridge Ag
Products). 08/01/92-12/31/92. $3,000

FrankJ. H. Laboratory Evaluation of Nylar


Gormley King Co. 08/07/92-04/30/93. $3,682

Frank J. H. Laboratory Evaluation of Hydroprene Against
Mole Crickets. Sandoz Inc. 05/04/92-10/19/92.
Frank J. H. Economics of Use of Biological Control
USDA Animal & Plant Health Inspection Service
10/01/92-09/30/93. $11,908

Frank J. H.

Evaluation of the Pathogenicity of 3 Species of

Stememema. Biosys. 05/01/93-12/15/93. $2,242

Frank J. H.

Evaluation of the Efficacy of Diatomaceous

Earth Against Mole Crickets Agnscience &
Technologies Inc. 07/15/93-02/15/94 $1,446
Habeck D. H. Quarantine Testing of the Safety of Weed
Biocontrol Agents for Release in the United States,
USDA Agricultural Research Service. 08/14/92-
07/31/97. $59,500
Habeck D, H. Quarantine Testing of the Safety of Weed
Biocontrol Agents for Release in the United States.

USDA Agricultural Research Service
07/31/97. $71,980


Hall D W. Large Cage and Field Evaluation of Various
Mosquito Trap Configurations S C. Johnson & Son,
Inc 08/17/92-08/16/93 $10,000

3 Extension 4 Other UF or Cooperating Aeencv

1 Resident instruction 2 Research

Entomology and Nematology

Hall D. W. Characterization and Assessment of Insect
Repellents and Attractants for Personal Protection.
USDA Agricultural Research Service. 09/30/92-
08131/97. $5,000
Hoy M. A. Establishment and Dispersal of Pesticide
Resistant Natural Enemies USDA-CSRS
(Integrated Pest Management). 08/01/92-07/31/93.
Hoy M. A. Sustainable Management of Tropical Pests
With Genetically Improved Natural Enemies.
University of Hawaii. 07/01/92-06/30/94. $31,445

Koehler P. G.

Testing Agreement for Evaluation of

Maxforce Pharaoh Ant Killer. Clorox Company.
07/30/92-07/29/93. $10,854
Koehler P. G. Computerized Instruction of Pest Control
Personnel. National Pest Control Association.
02/02192-12/30/92. $4,000
Koehler P. G Flufenoxuron Studies in Apartments. S.C.
Johnson & Son, Inc. 07/22/92-07/21/93. $13,608

Koehler P. G.

Field Tests of Liquid Borate Baits. S C

Johnson & Son, Inc. 07/01/92-12/31/92. $17,694
Koehler P. G. Flea Trap Project. Zema Corporation.
02/01/93-01/31/94. $5,000

Koehler P. G.

Bait Evaluations in Apartments. S.C

Johnson & Son, Inc. 02/22/93-05/22/93. $19,206
Koehler P. G. Evaluation of Two Formulations of
Nematodes in Apt. Biosys. 10/01/92-01/15/93.

Koehler P. G. Control of Fleas with Nematodes
04/15/93-10/31/93. $10,260


Nation J. L. Investigation of Physiological Ways to
Determine When Insects Have Been Irradiated Wtth
Ionizing Radiation. Intl Atomic Energy Agency
12/15/92-12/14/93. $10,000
Stmac J. L. Microbial Control of the Red Imported Fire
Ant With Fungal Formulation of Beauvena bassiana.
Rutgers University. 06/25/92-02/28/94. $15,000

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Environmental Horticulture

1545 Fifield Hall
Gainesville, FL 32611
Telephone: 904-392-1829
Fax: 904-392-3870

1,2,3 TERRIL A. NELL Chair and Prof
1,2 JAMES E. BARRETT Prof., Woody Ormam
1,2 GREG L. DAVIS Asst. Prof, Landscape
1,2 BIJAN DEHGAN Prof., Woody Ornamentals
1,2 ALBERT E. DUDECK Prof., Turf


& Biochemistry


Effects of Production System and Environ-
mental Factors on Tree Root Growth
Following Planting

E. F. ilman





Asst. Prof, Plant Envi-

Assoc. Prof., Plant Physiology

SAsst. Prof., Tissue Culture


LAMBERT B. McCARTY Asst. Prof, Turfgrass
Production and Maintenance

M E. Kane

Weed Management in Commercial Turfgrass
L. B. McCarty

Integrated Delivery of Nutrients and Water
to Ornamental Plants

T. H Yeager

Taxonomy and Biosystematics of Horticul-
tural Plants
B. Dehgan

Low Temperature Regulated Genes Associ-
ated with Freezing Tolerance in Spinach
C. L. Guy

Environmental Horticultural Use of
Composted Waste Products as Container
Mixes and Soil Amendments
D. B. McConnell


Prof., Foliage
Asst. Prof, Master

.Prof, Woody Ornam.

Refereed Publications:
R-01440 Barret, J. E. and Nell, T

A. Efficacy of

Paclobutrazol and Uniconazole on Four Bedding
Plant Species. HortScience 27.896-897. 1992

UF/IFAS, USDA-CRIS Research Projects:





Technical and Economical Efficiencies of
Producing and Marketing Landscape Plants
D. B. McConnell

Freeze Damage and Protection of Fruit and
Nut Crops
C. L. Guy

Micropropagacion Systems Development for
Native Wetland, Aquarium and Water
Garden Plant Production
M. E. Kane

Seed Dormancy and Germination of

Ornamental Plants
W. J. Carpenter


R-01843 Carpenter, W. J. and Boucher, J. F.



Light and

Temperature Govern the Germination and
Storage ofVinca Seed. HortScience 27.993-996
Carpenter, W. J. and Boucher, J. F
Temperature Requirements for the Storage and
Germination of Delphinium x cultorum Seed.
HorScience 27:989-992. 1992
Carpenter, W. J. and Cornell, J. A The
Influence of Medium Temperature and Auxin
on the Root Initiation of Hibiscus Rosa-Smensis
Stem Cuttings. American Society of
Horticultural Science 11768-74. 1992

R-01998 Carpenter, W. J. and Oscmark, E. R. Growth
Regulators and Storage Temperature Govern the

Germination of Coreopsis Seed.
27:1190-1193. 1992

B, Dehgan

Introduction and Evaluation of Ornamental

A E. Dudeck
T.. Sheehan

B. Dehgan


R-02988 Carpenter, W. J.; Comell, J. A. and Ostmark,
E. R. Removing Testa Covering the Embryo
and High Temperature Cause the Rapid
Germnation of Needle Palm Seed. Horticulture
Science 28-281-283 1993

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction Z Research

52 Environmental Horticulture

-02772 Carpenter, W. J., Cornell, J. A. and Ostmark,
E. R. The Role of Light During the
Germination of Phlox Drummondi Hook Seed.
HortScience 28:786-788. 1993
.-02353 De Hertogh, A A. and Nell, T A. Marketing
Opportunities for Ornamental Geophytes.
Acta Horticulture 325:319-324. 1992
1-01095 Dudeck, A. E. and McCarty, L. B. Salinity
Effects on Bentgrass Germination. Agronomy
Journal 28:15-17 1993
R-02914 Dudeck, A. E. and Peacock, C. H. Salinity
Effects on Growth and Nutritional Status of
Selected Warm-Season Turfgrasses Proceedings
of the 7th International Turfgrass Research
Conference 7:680-686. 1993
R-01897 Dudeck, A. E.; Peacock, C. H. and Wildmon,
J. C. Effects of Salinity on St. Augusnegrass
Culttvars. Part 1. Plant Growth Responses.
American Society for Horticultural Science
28:46-48. 1993
R-02105 Gilman, E. F.; Beeson, R. C. and Black, R. J.
Comparing Root Balls on Laurel Oak
Transplanted from the Wild with Those on
Field-Grown and Fabric Container Nursery-
Grown Trees. Journal of Arboriculture
18:124-129. 1992
R-02399 Guy, C.; Haskell, D.; Neven, L.; Klein, P. and
Smelser, C. Hydration State Responsive
Proteins Link Cold and Drought Stress in
Spinach. Planta 188:265-270. 1992
R-02340 Guy, C.; Huber, J. and Huber, S. Sucrose
Phosphate Synthase, Sucrose Accumulation
and Low Temperature. Plant Physiology
100:502-508. 1992
R-01934 Harris, J. R. and Gilman, E. F. Production
Method Affects Growth and Post-Transplant
Establishment of flex x Atenuara Ashe. East
Palatka'. American Society for Horticulture
Science 118. 1993
R-03256 Haskell, D W.; Anderson, J. V. and Guy, C. L.
Antigen Binding of a Mouse Monoclonal IgGI Is
Inactivated by Heating But Not by Freeze/Thaw
Cychng. Cryobiology International Journal of
Low30 532-535. 1993
R-02431 Lance, C. J. and Guy, C. L. Changes in Pigment
Levels, RuBtsco, and Respiratory Enzyme
Activity of Fius benjamin L. During
Acclimation to Low Irradiance. American
Society for Horticultural Science 86:630-638.

R-01412 Lott, E. J. and Dehgan, B. Jatropha marmnez-
salasu (Euphorbtaceae), a New Species from
Michoacan, Mexico. Systematic Botany
17:363-366. 1992
R-00580 Martin, C. A and Ingram, D. L. Computer
Modeling of Temperature Fluctuations in a
Container Medium 1. Model Development and
Validation. American Society for Horticultural
Science 117:571-577. 1992
R-02045 McCarty and Colvin, B. and Colvin D. L. Buffalograss
Tolerance to Postemergence Herbicides.
HortScience 27898-899. 1992


Nell, T A. and Noordegraaf, C. V Effect of
Simulated-Transport and Low Irradiance Levels
on Postproduction Performance of Potted Rose.
HorScience 27 239-241. 1992

R-02377 Nell, T. A.; Barrett, J. E. and De Hertogh, A. A
Post-Greenhouse Longevity of Rooting Room
Bulbs as Flowering Potted Plants. Acta
Horticulturae 325:175-184. 1992

Neven, L. G.; Haskell, D. W.; Guy, C. L.;
Denslow, N.; Klein, P. A.; Green, L. G. and
Silverman, A. Association of 70 kDa Heat
Shock Cognate Proteins with Acclimation
Cold. Plant 99:1362-1369. 1992
Neven, L. G.; Haskell, D W.; Hofig, A., Li,
Q. B. and Guy, C. L. Characterization of a
Gene Responsive to Cold Acclmation and
Water Stress. Plant Molecular Biology
21:291-305. 1993

R-00315 Ruter, J. M. and Ingram, D. L. Influence of
Supraoptimal Root-Zone Temperatures on
Photosynthetic Mechanisms in 'Rotundifoia'
Holly American Society for Horticultural
Science.117:154-157. 1992

Non-Refereed Publications:
N-00684 Anderson, S F. and Dudeck, A. E. Overseeding
Trials on Fairway and Putting Green
Bermudagrass Florida Stae Horticultural
Society Proceedings 105:230-235 1992
N-00696 Kane, M. E. and Philman, N. L. Effect of
Culture Vessel Type on In Vitro Multiplication
of Pontedena Cordaa L. Proceedings of the
Flonda State Horticultural Society 105:213-215
N-00650 Marowsky, F. J.; Dudeck, A. E. and McCarty,
L. B. Influence of Daylength and Fertility on
Growth of Bermudagrass Cutivars. Florida
State Horticulture Society 105-236-238. 1992

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Environmental Horticulture 53

N-00720 McConnell, D. B. and Smith, M. C Notching
Affects Bud Break of Dracaena fragrans
'Massangeana' Cane. Proceedings of the Florida
State Horticultural Society 105:180-182. 1992

Research Grants:
Barrett J. E. Evaluation of Catalyst Activated Water on
Greenhouse Crops. CAW Industries Inc. 07/15/92-
01/15/94. $24,000

BarrettJ. E.

Evaluation of Potential Chemical Plant

Growth Regulator. Great Lakes Chemical Corp.
07/01/92-12/31/92. $10,800
Carpenter W J. Excessive Hydration of Seed Embryos
Can Cause Reduced, Delayed, and Irregular
Germination. Bedding Plants Foundation Inc
07/01/92-06/30/93 $3,000
Carpenter W. J Terminating Seed Dormancy of Bedding
Plants with Growth Regulating Chemicals. Bedding
Plants Foundation Inc. 09/01/91-08/31/93 $5,000

Dehgan B.

One Hundred Florida Native Trees for

Environmental Education and Germplasm Resource.
Florida Department of Agriculture & Consumer
Services. 03/29/93-07/01/93. $19,230

Kane M. E Application of Micropropagation Technology
for Native Wetland Plant Production and Wetland
Mitigation. Walt Disney Imagineering. 03/08/93
09/30/93. $26,325
McCarty L. B. Efficacy of Plant Growth Regulators. South
Flonda Water Management District. 05/05/92-
05/04/95. $65,000

Nell T. A.

Post Production Handling of Bedding Plants.

Bedding Plants Foundation Inc. 08/01/92-07/31/93.
Nell T A. Poinsettia Research 1992-93. Paul Ecke
Poinsettias Inc. 08/01/92-07/31/93 $19,000
Nell T. A. Production and Seed Germination of
Foriculture Crops. Earl J. Small Growers Inc.
08/01/92-07/31/97 $60,000

Nell T A.

Increasing Postharvest Longevity of Jamaican

Grown Cut Flowers. Jamaica Ag Dvl Foundation.
01/02/91-05/31/93. $10,015

Nell T A.

Evaluation of Flowering Potted Plants. Ball

Fora Plant. 01/01/93-12/31/93. $12,500
Nell T. A. Evaluation of Flowering Potted Plants

Seed Co. 01/01/93-12/31/93


Dudeck A. E.

NTEP Official 1992 Bermudagrass National

Test National Turfgrass Federation Inc. 06/01/92-
02/01/95. $1,000

Nell T. A. Postproduction and Postharvest Handling of
Potted Plants and Cut Flowers. Manatee Fruit
Company. 09/01/92-08/30/93. $20,000

Evaluation of Micrea as a Nitrogen Source

for Turgrass Fertilization. Agriventures. 05/15/91-
12/31/92. $6,000

Gilman E. F

Sample Florida Yard Plans Florida Yard

Program. Sarsota Bay National Estuary Program.
03/03/93-07/30/93. $5,700
Guy C. L. Common Mechanisms of Response to the
Stresses of High Salinity and Low Temperature and
Gen USDA-ARS (Binational Agricultural Research

Development). 08/19/91-08/18/93


Guy C. L. Characterization of a Hsp70 Cognate
Unregulated During Cold Acclimation. National
Science Foundation 02/15/91-01/31/94, $56,000
Guy C. L. Transformation of Low Temperature and
Drought Responsive Genes into Cold Sensitive
Plants of Economic Significance. Fla. High Tech &
Ind Council. 01/19/93-01/18/94. $17,960
Kane M. E. Use of Plant Growth Regulators to Enhance
Water Lily Production. Florida Swine Check-Off
Program. 08/20/92-06/01/93 $1,900
Kane M E. In-viro Culture Techniques for Screening
Aquatic Plant Growth Potential Florida Department
ofNatural Reeources. 09/01/91-06/15/94 $26,539

Nell T. A.

Postproduction Longevity of Flowerng Potted

Plants. American Floral Endowment. 01/01/93-
12/31/93. $9,000
Nell T. A. Chrysanthemums Possible Cause of Uneven
Growth and Flowering. Yoder Brothers, Inc.
02/15/93-02/14/94. $3,000

Nell T. A.

Production Practices Affecting Quality and

Longevity of Flowering Potted Plants Ohio
Floriculture Foundation. 02/15/93-12/31/93


Nell T. A. Evaluation of Mega Bloom on Greenhouse
Crops. National Industries. 08/01/92-06/30/93
Yeager T H. Vigoro Fertilizer Evaluations. Vigoro
Industries, Inc. 05/20/92-12/31/93 $7,500
Yeager T. H. Helena Fertilizer Evaluations. Helena
Chemical Co. 06/21/91-12/31/93. $6,000
Yeager T. H. Evaluation of Cedar Chemical Fertilizer.
Cedar Chemical Company. 12/23/92-12/31/93
Yeager T, H. Reduce Leaching with Minimal Nitrogen
and Water Applicanons. Horticultural Research Inst.
03/04/93-03/03/94. $4,250

3 Extension 4 Other UF or Cooperating Agency

Dudeck A. E

1 Resident Instruction 2 Research

54 Environmental Horticulture

Yeager T. H. Timing of Fertilizer Appcations for
Reduced Nitrogen Runoff. Horticultural Research
Inst. 03/04/93-03/04/94. $3,000
Yeager T. H. Evaluation of Sure-Gro Gertlzer
Nurserymen's Sure-Gro Corporation. 12/21/92-
12/31/93. $2,000

Yeager T. H. Evaluation of Cedar Chemical Fertilizer.
Cedar Chemical Company. 12/23/92-12/31/93. $750

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Fisheries and Aquatic



7922 NW 71st Street
Gainesvdle, FL 32606
Telephone: 904-392-9617
Fax: 904-392-3462


Chair & Prof.
JR Assoc. Prof., Fish

Prof., Limnology

2,3 FRANK A CHAPMAN Asst. Prof., Aquaculture,
Reproductive Physiology
1,2 WILLIAM J. LINDBERG Assoc. Prof, Marine
Crustacean Biology, Estuarne Ecology
2 EDWARDJ PHLIPS Asst. Prof., Marine Biomass
& Microbial Physiology & Biochemistry, Phy-
toplankton Ecology
1,2 CLAIRE L. SCHELSKE Eminent Scholar, Water

UF/IFAS, USDA-CRIS Research Projects:


Ecologic Studies of the Littoral and Pelagic
Systems of Lake Okeechobee

J. V Shireman
E. J. Phlips
C. E Cichra



Refereed Publications:

R-02783 Aldridge, F. J.; Schelske, C. L. and Carrck, H. J.
Nutrient Limitation in a Hypereutrophic Florida
Lake, Archiv fur Hydrobiologte 127:21-37.
R-01700 Brenner, M., Whitmore, T. J Flannery, M. S.
and Bmnford, M. W. Paleolzmnological Methods
for Defining Target Conditions in Lake
Restoration: A lorida Case Study. Lake and
Reservoir Management 7:209-217 1993
R-02011 Cadteux, R. L.; Schramm, Jr., H. L. and

Shareman, J. V

Food Habit Comparison of Two

Populations of Blue Tilapia, Oreochromns aureus,

in North Central Florida.
55:236-243. 1992

Florida Scientist

R-01355 Campton, D. E. Heritability of Body Size of
Green Swordtaals (Xiphophorus hellen). I. Sib
Analysis of Males Reared Individually and i
Groups. Journal of Heredity 8343-48. 1992



D. E. Canfield
R Francts-Floyd


Variation of Reef Dispersion to Manage
Targeted Fishery Assemblages
W. J. Lindberg

Toward Forecasting Stone Crab Recruitment
and Environmentally Induced Year-Class

W. J Lndberg
C. E. Cichra



T. M. Bert

Agreement to Study Phytoplankton-Nutrtent
Interactions in Lake Apopka
C. L. Schelske

Population and Quantitative Genetics of Fish
and Shellfish in Florida

Campton, D E.; Robison, L. M. and Berg, C J.
Genetic Patchiness among Populations of Queen
Conch (Strombus ggas) in the Florida Keys and
Bimini. Fshery Bulletin 90 250-259 1992
Duarte, C. M., Agust, S and Canfield, Jr., D. E.
Patterns in Phytoplankton Community
Structure in Florida Lakes. Limnology and
Oceanography 37:155-161. 1992
Stauffer, R. E. and Canfield, Jr., D. E. Hydrology
and Alkalinity Regulation of Soft Flordian
Waters: An Integrated Assessment. Water
Resources Research 28 1631-1648. 1992

Research Grants:
Brenner M. Late Holocene History of Precipitation Events
in the Equatorial Pacific A Record From Gal.
Northern Kentucky University. 12/01/91-
06/30/93. $4,000
Brenner M. Historical Sedimentation and Nutrent
Storage Rates in the Blue Cypress Marsh
Conservation. St. Johns River Water
Management District. 08/24/92-02/23/94

Brenner M.

D. E. Campton


Fundamental Design Parameters for Artificial
Reefs. Interaction of Patch Reef Spacing and

Collaborative Research Human

Environment Interactions in Bolivian Altiplano:
Climate, Limology and Tiwanaku Agro-
Ecosystems. Harvard University 09/15/92-
02/28/95. $75,459

W. J Lmdberg

W Seaman

3 Exrtension 4 OtherlFr nr Cnnnerarmn Aoe,, -,

I RPidPnnrInlrnirion 2 RPsearch

Fisheries and Aquatic


Campton D. E. Genetic Monitoring of Salmornd Fishes:
Yakima-Khckicat Fisheries Project State of
Washington/Dept of Fisheries. 09/21/92-
03/31/93. $22,523
Canfield D. E. Volunteer Monitoring Program for Crystal
River. Southwest Florida Water Management
District. 08/04/92-02/03/94. $18,750
Canfield D. E. Florida Lakewatch: A Proposal for a
Statewide Citizens' Lake Monitoring and
Education Program. Florida Department of
Environmental Regulation. 04/20/93-04/19/96.
Chapman F. A. Analysis of United States International
Trade in Ornamental Fish. University of Hawaii.
11/05/92-11/04/93. $8,500
Lindberg W. J. Artificial Reef Evaluation Services. Florida
Department of Natural Resources. 02/01/93-
12/01/93 $23,000

Lmdberg W. J.

Fundamental Design Parameters for

Artificial Reefs:

Interactions of Patch Reef

Spacing and Size. Florida Department of
Environmental Protection. 10/18/90-10/31/95.
Schelske C. L Biogeochemical Response of the Lower
Great Lakes to Nutrient Loading and Climate.
Past, Present, and Future Trends in Trophic
State Variables. National Science Foundation
11/01/92-10/31/93. $93,096


J. V. Monitoring Study of the Gainesville
Raceway Water Reclamation Facility St. Johns
River Water Management District. 07/27/92-
07/26/93. $9375

Shireman J. V.

Early Life History and Relative Abundance

of Sturgeon in the Suwannee River, Florida
United States Department of Interior. 09/29/87-
10/31/94. $63,285

Shireman J. V.

Ecological Studies of the Littoral and

Pelagic Systems of Lake Okeechobee. South
Florida Water Management District. 04/15/88-
09/30/93. $394.600

Shireman J. V.

Evaluation of the Efficacy of Exotics as

Aquaculture and Management Species i
Florida. United States Department of Interior
03111/93-02/28/94. $19,040

Shireman J. V. Spawning and Rearing of Neon and
Cardinal Tetras. Tom Townsend, Hal Simmons,
Dallas Weaver and Jay Tanner. 01/04/93-
12/31/93. $17,221

Whitmore T. J.

Sedimentary Analysis and Historical

Assessment of Lake Marianna, Polk County,
Florida. Southwest Florida Water Management
District. 11/30/92-12/31/93 $25,000

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Food and Resource Economics


1157 McCarty Hall
Gainesville, FL 32611
Telephone: 904-392-1826
Fax: 904-392-3646
Policy & Resource I
Trade Pol. Farm. Sy
Agribusiness Mgmt.


Philosophy Agric.

Chmn & Prof, Public

.W Prof, Res. Meth. Mgt. Intl
Eminent Scholar, Marketing &

Prof., Mktg.

Prof., Farm Mgt, Prod.

Assoc. Prof,

Prof., Public Policy
Assoc. Prof., Natural

Resource Econ.
1,2 CARLTON DAVIS Distinguished Serv. Prof.,

Food & Nutrition Econ


Prof. & Dir., Market Res.

Prof. & Chief of Party Usaid

1,2 H. EV DRUMMOND Prof, Policy & Natural

Economitrc Labor


MOSS Assoc. Prof., Agn. and

Agribusiness Finance
Regional Econ. Comm.
Trade, Finance & Polic

Y Prof., Res. & Env.
LUS Prof., Mktg & Policy
Prof., Natural Resources
Assoc. Prof, Int' Ag.
Prof, Ltvestock Mktg.

1,2 THOMAS H. SPREEN Prof., Quantitative

& Econometrics

Assoc. Prof., Prod. Econ



ERIC THUNBER Asst Prof., Marine Eco ,Nat.
Res. Econ

Futures Mkts., Mgmt.



Prof, Finance,

Prof., Ag Marketing

WARD Prof., Mktg. and Industrial


Asst. Prof., Agribusiness

UF/IFAS, USDA-CRIS Research Projects:


Pro, P, Prod. Econ.

1,2,3 CHRISTINA H. GLADWIN Assoc. Prof., Small
Farm Management
1,2,3 JOHN R. GORDON Assoc. Dept. Chmn. and
Prof., Rural Econ. Devip Ag. Public Policy
1,2 PETER E. HILDEBRAND Prof., Int'l Devel.
Farming Systems/small Farms



Prof., Nat. Resources Env. Econ.

Prof., Ag. Marketing

Application of Integrated Agrotechnology for
Crop Production and Environmental Quality

W. G. Boggess



Economic and Technical Forces Shaping the
Southern Dairy Industry
R L. Kilmer

Competition and Change in the Fruit and
Vegetable Production and Marketing Systems

T. G. Taylor
G F Fairchild

J J. VanSickle

1,2 MAX R. LANGHAM Prof., Econ. DeveL. &


Grad. Res

Prof., International

Economic Development
1,2 BURL F. LONG Prof., Undergraduate Coord. Nat.
Resource Econ.
1,2 GARY D. LYNNE Prof, Nat. Res. Econ. Prod.


MILON Prof, Env. & Nat Resource


Rural Entrepreneurship

B. F.Long
W. D. Mulkey


C. H. Gladwin
R. L. Closer

J. R. Gordon

International Trade Research on Commodi-
ties Important to the Southern Region

J. L. Seale
C. B. Moss
M. G. Brown

G. F. Fairchild
). Y. Lee
J R. Simpson

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

58 Food and Resource Economics


The Organization and Performance of World
Food Systems: Implications for U.S. Policies

R. W. Ward


J L. Seale

Economic Analysis of Demand for Swordfish
and Economic Effects of Effort Reduction

E. M. Thunberg

J. L. Seale


Economic Analysis of Southern Regional
Adjustments to a Dynamic Livestock-Meat


Food Demand and Consumption Behavior
1. ee M. G. Brown

T. H. Spreen

j. R. Simpson

J. L. Seale







Quantifying Long Run Agricultural Risks and
Evaluating Farmer Responses to Risk
W.G. Boggess

Specification, Estimation and Evaluation of
Economic Models of the Food Sector
L. W. Libby

Enterprise Budgets for Selected Florida
T. G. Taylor

Systems for Providing and Controlling
Interior Environments for Poultry and

j. Holt

Background and Finishing Florida Feeder

T. H. Spreen

Organization and Structural Changes in the
Dairy Industry

C. H. Gladwin



Controlled Atmosphere Shipping of Carib-
bean Produce and Marketing Implications
J. J VanSickle

Biological Control and its Economics in the
Southern United States
R. N. Weldon

Refereed Publications:


Beilock, R.; Dunton, W. and Kepler, P. The
Adequacy of Trucking Services for Produce:

Trends m the 1980's.

Southern Journal of

Agricultural Economics Dec:95-104. 1992

R-03143 Gao, X. M.; Spreen, T. H. and DeLorenzo,
M. A. A Bio-Economic Dynamic Programming
Analysis of the Seasonal Supply Response by
Florida Dairy Producers. Southern Journal of
Agricultural Economics Dec:211-220. 1992


R. Burkhardt

Haydu, J J.; Myers, R. J. and Thompson, S. R
Forward Contracting in Factor Markets.
Southern Journal of Agricultural Economics
24:145-152. 1992


Transportation of Perishables

R. P. Beilock


D. A. Comer

Regulatory, Efficiency and Management
Issues Affecting Rural Financial Markets

C. B. Moss
P. J. Van Blokland


R. N. Weldon

Economic Analysis of Export Specialty Crop
Production and Marketing in Puerto Rico
and the U.S. Virgin Islands

T. G. Taylor
G. F. Fairchild

J. L. Scale

R-02587 Kilmer, R. L.; Morrll, J.; Spreen, T. H. and
DeLorenzo, M. A. The Effects of Alternate Cow
Freshening Distributions on Milk Production
and Imports in Florida Northeastern Journal of
Ag and Resource Economics 21 151-159. 1992


Messina, Jr, W. A. and Seale, Jr, J. L. U.S. Sugar
Policy and the Caribbean Basin Economic
Recovery Act: Conflicts Between Domestic and
Foreign Policy Objectives Review of
Agricultural Economics 15-167-180 1993

R-02187 Moss, C. B.

The Cost Price Squeeze in

Agriculture: An Application of Comitegration.
Review of Agricultural Economics 14:205-213



Impact Analyses and Decision Strategies for

Agricultural Research
M. R. Langham

Regional Analysts of
J. W. Mdon

W G. Boggess

Marine Recreational


Moss, C. B. and J. S

Shonkwiler. Estimating

Yield Distributions Using a Stochastic Trend
Model and Nonnormal Errors American
Journal of Agricultural Economics
75-1056-1062. 1993

E. M. Thunberg

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Food and Resource Economics 59


Scale, Jr., J L.; Sparks, A. L. and Buxton, B. M
A Rotterdam Application to International
Trade in Fresh Apples- A Dtfferential
Approach. Western Journal of Agricultural
Economics 14:255-262. 1992

R-02885 Simpson, J. R. and Conrad, J. H. Intensification
of Cattle Systems in Central America: Why and
When. Journal of Dairy Science 76.1744-1752.


Thunberg, E. M.; Pearson, C. N. and Milon,
J. W. Residential Flood Control Benefits of
Aquatic Plant Control. Journal of Aquatic

Plant Management 30-66-70 1992
R-02197 Thunberg, E. M., Weldon, R. N.; Thomford, H.
and Vaughan, D Marine Aquaculture
Enforcement: Passing the Buck. Journal of
Shellfish Research 11:177-182 1992


VanSickle, J. J. and Cantiffe, D. Florida

Mexico Competition in the Winter Fresh
Vegetable Industry. Proceedings of the Florida
State Horticultural Society 105:373-380. 1992
R-03261 Weldon, R. W Moss, C. B. and Enckson, K
The Distribution of Farm Wealth in the U.S.
Agricultural Finance Review. p. 100-109. 199

Research Grants:

Beilock R.P.P Transportatton-Logistics m U.S -Mexico
Perishables Trade. USDA Agricultural Marketing
Service. 03/15/93-01/01/94. $30,000
Boggess W. G. Consortium in Water Resource Economics
Bank of America. 09/11/92-09/10/93. $10,000
Boggess W G. Consortium in Water Resource Economics
University of New England (Armtdale-Austraha).
01/22/93-01/21/94. $2,000
Degner R L. Relandscaping- A Viable Market Option for
Central Florida Woody Plant Industry Florida
Nurserymen and Growers Association 02/01/39-
01/31/94. $8,000
Degner R. L. Research Agreement for Estimating Florida
Per Capita Fish & Shellfish Consumption. Florida
Department of Environmental Regulation. 03/12/92-
04/30/94. $42,979
Emerson R. D. Alternative Compensation Approaches

for Agricultural Employment
09/30/92-09/30/93. $28320

FI Dept of Labor,

Gladwm C. H. Mexico's Structural Adjustment: Who
Will Benefit and Who Will Lose in The 1990's?.
University of Miami. 01/01/93-09/30/94 $2,250

Gordon J. R.

Market Study on Organic Peanut J.E.

Austin Associates. 09/17/92-10/25/92. $3,000

Gordon J. R.

Graduate Student Support. Florida

Sugarcane League, Inc. 08/01/92-07/31/93. $7,500
Kilmer R. L. Pesticide Residue Levels and Pest Control
Practices of Growers and Marketing Firms and
Selected Vegetable and Fruit Crops. USDA
Economic Research Service. 09/21/92-09/30/94.
Kilmer R. L. Marketing of Florida Citrus Products. United

Nations (various)

11/17/92-05/31/93. $9,000

Kilmer R. L Pesticide Residues and Pest Control
Production and Marketing Methods Used. USDA
Agricultural Marketing Service. 06/01/93-12/31/93.
Lele U. Graduate Student Support. Internaion
Commission on Peace and Food. 10/29/92-02/28/93
Libby L. W. Economic Analysis of Bacterial Foodborne
Risks. USDA Economic Research Service 03/16/93-
09/30/93. $43,000
Lynne G. D. Agricultural Water Demand in the
Apalachicola River Basin. Auburn University.
04/01/93-07/31/94. $15,000
Messina W. A. Challenges and Opportunities for Florida
Agriculture from Potential Changes i Trade
Relations with Cuba. The John D and Catherine T
MacArthur Foundation. 11/01/92-04/30/94. $46,292
Milon J. W. Estimating Non-Use Values for Florida's
Marine Ecosystems and Endangered Species. United
States Department of Commerce. 04/01/93-03/31/95.
Moss C. B. A Dynamic Model of Florida Citrus Supply.
Florida Citrus Commission 08/04/92-06/30/94.
Polopolus L. C. Agricultural Prevailing Wage Surveys for
Florida: Survey Designintervewer Guidelines,

Training, and Analysis Fla
10/31/93 $75,240

Dept of Labor. 05/09/89-

Taylor T. G. Economic Analysis of Export Speciality Crop
Production and Marketing in Puerto Rico and the
U.S. Virgin Islands. USDA-CSRS (Tropical
Agricultural Research). 07/01/91-06/30/94. $33,494
Thunberg E. M. Development of an Economic Evaluation
Framework for Aquatic Plant Control Programs. US
Army. 09/01/92-09/30/93 $10,580

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research

60 Food and Resource Economics

Thunberg E. M. Economic Effects of Swordfish
Management Policy on Swordfish and Tuna Fisheries
in The Gulf of Mexico. United States Department of
Commerce. 02/01/93-01/31/94. $28,800
Thunberg E. M Development of an Economic Evaluation
Framework for Aquatic Plant Control Programs. US
Army. 09/01/92-09/30/93. $24,150
Thunberg E. M. Estimating Recreational Values for
Reef-fish in the Gulf of Mexico. United States
Department of Commerce. 03/01/93-02128/94.

VanSickle J.J.

A Long Term Economics Assessment of

the Loss of Methyl Bromide on Florida
Maryland. 02/01/93-04/30/94. $60,000

University of

Ward R. W. Continual Evaluation of The Beef Checkoff
Programs. National Cattlemen's Assoc. 04/01/93-
01/01/94. $45,000

Weldon R. N.

Outside Equity to Agriculture: Extent of,

Factors Affecting Availability, and Implications for
Sector. USDA Economic Research Service.
09/30/91-09/30/93. $15,000

3 Extension 4 Other UF or Cooperating Agency

1 Resident lnstructnon 2 Research


359 Food Science Building
Gaiesville, FL 32611
Telephone: 904-392-1991

Fax. 904-392-8594
1,2,3 CHENG-1 WE

Food Science and Human Nutrition

UF/IFAS, USDA-CRIS Research Projects:



Acting Chm. & Prof., Food

1,2 LYNN B. BAILEY Prof, Human Nutr.
1,2 MURAT BALABAN Asst. Prof., Food
Engineering & Processing


Prof., Food Proc.



1,2 PEGGY L. BORUM Assoc Prof., Human Nutr.


tonal Biochemistry
Nutr Educ

Assoc. Prof., Biochem

1S Eminent Scholar Nutri-

III Prof, Food Chemistry
Asst. Prof., Dietetics and


Zinc Metabolsm and Function m Animal
R. J. Cousins

Biochemical and Residual Properties of

H. A. Moye

W B. Wheeler

Improving Grape Processing and Utilization
C. A. Sims

Product Development for Increased
Utilization of the Sweet Potato
M. O. Balaban

Quality and Safety of Seafood Products

M. R. Marshall


C. I. Wet

Nutritional Properties of Pyridoxine-

Nutr. Educ.

Asst. Prof., Dietetics and

J. F. Gregory
L. B Bailey

J. P. Toth

JAMES A. LINDSAY Assoc. Prof., Food

Chemistry Biochemistry



Prof., Seafood

Prof., Food Science
ci., Pest. Res.

HUGH A MOYE Prof., Anal. Chem Prof Anal,



Asst. Prof, Food Chemistry




Asst Prof., Nutrition and

Reduction of Aflatoxin Content i Peanut
Seeds by Microwave Roasting
C. I. Wei

Optimization of Peel Dewaterng Processes in
Citrus By-Product Manufacture
M. O. Balaban

Pathogenicity of Estuarne and Marine
ulnifrcus in Mice

H. S. Sitren


G E. Rodrick

RALPH C. ROBBINS Assoc. Prof., Human Nutr.



1,23 CHARLES A. SIMS Asst.


Assoc. Prof., Food

Improving Nutritional Adequacy of Total
Parenteral Nutrition Formulas

H. S. Sitren

Prof., Dairy


Prof., Biochemistry
Prof., Enology

1,2 HARRY S. SITREN Assoc. Prof., Nutritional



Prof, Pesticide Analysis

JOHN P TOTH Assoc. Sci., Anly. Chem.



Prof., Toxicology

C. I. Wei

Folate Utilization and Nutrient Interaction in
Human Subjects
L. B. Bailey

Fatty Acid Effects on Lipoproten Metabolism
in Cultured Human Hepatoma Cells
R. M. Shireman

Activation of Bacterial Toxins in Sudden
Infant Death
J. A. Lndsay

3 FxrerPnsn 4 Olher I )F or Cnner-n-irar Ar,-,,

62 Food Science and Human Nutrition




Refereed Publications:



Bae, B. and Percival, S. S. Retnoic Acid-
induced HL-60 Cell Differentiation is
Augmented by Copper Supplementation.
Journal of Nutrition 123:997-1002. 1993
Bailey, L. B Folate: Evaluation of New
Recommended Dietary Allowance. American
Dietetic Association 92:463-471. 1992
Bhandar, S- D. and Gregory, J. F. Folic Acid,
5-Methyl-Tetrahydrofolate, and 5-Formyl-
Tetrahydrofolate Exhibit Equivalent
Absorption, Metabolism, and In Vio Kinetics in
Rats. Journal of Nutrition 122:1847-1854. 1992
Brown, M.; McGowen, C.; Bates, R. P. and
Cornell, J. A. Influence of Fruit Maturity on the
Hypoglycin A Level in Ackee (Blighu sapida).
Journal of Food Safety 12:167-177. 1991

Stable-Isotopic Investigatton of Folate
Bioavailability and Nutritional Status
J. F. Gregory
Copper Regulation of Superoxide Dismutase
S. S. Percival

Adding Value by Improving the Processing
Potential of lorida Horticultural Crops
R. P. Bates

Southern Region Program to Clear Pest
Control Agents for Minor Uses
N. P. Thompson C. W. Meister
Biochemical Conversion of Arylamme-Based
Chemicals into Reactive Metaboltes
M. D. Corbett B. R. Corbett

Pesticide Information Activities in Florida in
Support of NAPIAP
O. N. Nesheim

Preterm Piglet Model to Evaluate Nutritional
Support Regimens for Preterm Neonates
P. R. Borum

Folate Nutrtional Status and In Viwo
J. F. Gregory
Effect of Storage and Depuration Tempera-
ture on Pathogenic Vibrios In Shellfish
G. E. Rodrick


Kownacki-Brown ; Wang, C.; Bailey, L. B;
Toth, J. P. and Gregory, J. F. Urinary Excretion
of Deuterium Labeled Folate and the Metaboite
p-Ammnobenzoylgluamate in Humans Journal
of Nutrition 123:1101-1108. 1993

R-02177 Krohn, B. M. and Lindsay, J A. Cloning of the
Cyclomakodextrinase Gene from Bacillus subis
High Temperature Growth Transformant H- 17.
Applied Microbiology and Biotechnology
26:217-222 1993

3 Extension 4 Other UF or Cooperating Agency

R-01525 Charara, Z. N Willias.; Williams W.; Schmid, R. H.
and Marshall, M. R. Evaluation of Orange
Flavor Absorption into Various Polymeric
Packaging Materials. Journal of Food Science
57:963-972. 1992
R-01984 Chen, J. S.; Balaban, M. 0.; Wei, C. 1. and
Marshall, M. R. Inactivation of Polyphenol
Oxidase by High Pressure Carbon Dioxide
Journal of Agricultural and Food Chemistry
402345-25-2349. 1992
R-02188 Chen, J S., Preston, F., Wei, C. ., Hooshar,
P.; Gleeson, R. A. and Marshall, M. R.
Structural Comparison of Crustacean, Potato,
and Mushroom Polyphenol Oxidases. Journal of
Agricultural and Food Chemistry 40:1328-1330.
R-01504 Corbett, M D.; Corbett, B R., Hannothiaux,
M. H. and Quintana, S. J. The Covalent
Binding of Acetamnophen to Cellular Nucleic
Acids as the Result of the Respiratory Burst of
Neutrophals Derived from HL-60 Cell Line.
Toxicology and Applied Pharmacology
113-80-86. 1992
R-02558 Ehsam, M. R.; Schmidt, R. H. and Myers, P 0.
Effects of Cottage Cheese Whey on the
Properties of Ice Milk. Journal of Food Qualty
16:253-261. 1993
R-01382 Ericson, A. P.; Matthews, R F., Teixeira, A. A
and Moye, H. A. Recovery of Grapefruit Oil
from Processing Waste Water Using SDVB
Resins Journal of Food Science 57:186-189
R-01582 Gilbert, J. A. and Gregory, J. F. Effects of
Pyridoxine-5'B-D-glucoside on the Metabolic
Utilization of Pyridoxine in the Rat. Journal of
Nutrition 221029-1035 1992
R-01723 Gregory, J. F.; Bhandan, S. D. Bailey, L. B.;
Toth, J. P.; Baumgarner, T. G. and Cerda, J
Relative Bioavaliabiltty of Deuterium-Labeled
Monoglutamy Tetrahydrofolates and Folic Acid
in Human Subjects. American Journal of
Clinical Nutrition 55:1147-1153. 1992







1 Resident Instruction 2 Research

Food Science and Human Nutrition

R-01577 Krohn, B. M. and Lmdsay, J A. Reclassification
of a Thermostable Glucosidase from Bac/llus
subtlis H-17 as a Cyclomaltodextrnase.
Biochemistry Biophysics Research
Communications 14:194-196. 1992
R-02419 LindsayJ. A.; Mach, A. S.; Wilkinson, M. A.
and Martin, L. M A Role for Closmndum
perfringens and its Cytooxic-Enterotoxin(s) in
Sudden Infant Death Syndrome: A
Microbiological, Histopathological and
Toxicological Study. Current Microbiology
75-377-380. 1992


O'Keefe, S. F.; Wiey, V. A.; and Knauft, D
Comparison of Oxidative Stabilities of High
Normal Oleic Peanut Oils. Journal of the
American Oil Chemists Society 70:489492.

R-01432 Percival, S. S Copper's Influence on Iron
Uptake and Intracellular Iron Metabolism
in K562 Cells. Proceedings of the Society
of Experimental Biology and Medicine
200:522-527 1992
R-01570 Percival, S. S. Differentiating HL60 Cells Need
a Copper Supplement to Maintain Cu/Zn-
Superoxide Dismutase Activity. PSEMB
38:63-72. 1993
R-02566 Percival, S. S. and Layden-Patrice, M. HL-60
Cells Can Be Made Copper Deficient by
Incubating with Tetrae hylenepentamine.
Journal of Nutrition 122:2424-2429. 1992
R-02641 Percival, S. S.; Bea, B. and Patrice, M. Copper
is Required to Maintain Cu/Zu Superoxide
Dismutase Activty During HL60 Cell
Differentiation Proceeding of the Society of
Experimental Biology and Medicine 203:78-83.


Shreman, R. B. and Dureux, J Microplate
Methods for Determination of Serum
Cholesterol, HDL-Cholestero[ Triglycende and
Apolipoproteins. Lipids 28:151-155. 1993

R-00978 Van Der Keen, D and Lidsay, J. A.
Production of a New Extracellular Cytooxin
from L. monocyogenes Serotype 4b and ATCC
15313 Serotype 1/2a in Relation to Growth
Stage and Growth Temperature. Journal of
Food Protection 55:250-256. 1992
R-02037 Von der Porten, A. E.; Gregory, J. F; Toth, J. P;
Cerda, J. J.; Curry, S. H. and Baley, L. B In
Vivo Folate Kinetics during Chronic
Supplementation of Human Subjects with
Deuterium-Labelled Folic Acid. Journal of
Nutation 122:1293-1299. 1992

Non-Refereed Publications:

Bates, R. P. Home Beer Making: Chemistry in
the Kitchen. ACS Symposium Series No. 536,
Beer and Wine Production 536-234-252. 1993
Matthews, R. F. and West, P. F. Solvent
Extraction Procedure for the Recovery of
Volatile Constituents from Orange Juice.
Proceedings of the Forida State Horticultural
Society 105:156-160. 1992
Sims, C A., Garrido, V M. and Bates, R. P.
Methods to Limit Ellagic Acid Precipitation in
Muscadine Juice and Wine Proceedings of the
Florida State Horticultural Society 105:135-139

Research Grants:

Bailey L. B. Effect of Pregnancy on Folate Absorption.
Florida Citrus Commission. 07/01/92-10/31/93
Balaban M. 0. Development of an Automated Quality
Assessment Device for Shrimp. United States
Department of Commerce. 02/17/93-03/31/95.
Borum P. R. Research Agreement with Clinirec Nutrition.
Clintec Nutrition. 04/01/92-06/30/93. $13,620
Borum P.R. Evaluation of Formula Containing Black
Currant Seed Oil i Colostrum Deprived Piglets
Nestle Food Company. 07/22/92-07/21/93 $24,672
Borum P. R. Camitne Studies. Misc Donors. 05/16/86-
05/15/94. $1,380
Borum P. R. Research Agreement with Chnitec:
Laboratory Blood Testing of Procystene in Patients
Infected with Human HIV Clintec Nunntron.
11/20/92-06/30193. $38,754
Borum P. R. Research Agreement with Chnitec Nutrition.
Clntec Nutrition 04/01/92-03/31/94 $167,920
Borum P. R Comparison of Novalpid & Interloped in
TPN of Neonatal Piglets. Kabi Vitrum Ab 06/21/89-
08/31/93. $6,000
Borum P. R Carntine Studies. Misc Donors. 05/16/86-
05/15/94. $212
Cousins R. J. Zinc and The Synthesis of Zinc Binding
Protein. National Institutes of Health. 07/01/92-
06/30/93. $310,873
Gregory J. F. Folate Nutritional Status and m Vivo
Kinetics. USDA-CSRS/C 08/01/92-03/25/94.

3 Extension 4 Other UF or Cooperating Agency

L Resident instruction Z Research

64 Food Science and Human Nutrition

Gregory J. F The Nutritional Properties of Pyrdoxme-
beta-glucoside. National Institutes of Health.
01/0193-12/31/95. $92,862

LindsayJ. A.

Production of Bacillus Sublihs lal Spores.

University of Missouri-Kansas City. 05/1992-
05/18/93. $1,200

Lindsay J. A. Production of Bacterial Spores. General
Food, Inc (Also Kraft General Foods). 07/12/91-
11/12/91. $1,440
Meister C. W. Study Analysis for #4045 Pistachio/
Benelate Tnal 404591-A201. Pistachio Corporation.
12/11191-12/10/92. $400
Meister C. W. Industry Support for Minor Use Research.
Rutgers University. 03/01193-12/31/93. $13,000
Meister C. W. Establishment of Field Plots of Cantaloupe,
Cucumber, Squash, and Tomato to be Treated with
NTN 33893 and Harvest Samples for Residue
Analysis. Rutgers University. 07/01/92-06130/93.
Meister C. W. Industry Support for Minor Use Research.
Rutgers Untversity. 03/01/93-12/31/93 $6,000
Moye H. A. Pesticide Pressure Rinsing and Triple Rinsing.
Florida Department of Agriculture & Consumer
Services. 07/01/92-12/31/93. $90,000
Moye H A. Testing SN 100309 through FDA
Multiresidue Methods. Nor AM Products (or Nor
Am Chin Co). 03/22/93-06/30193. $20,000
Moye H. A. The Stability of Pesticides on Empore
Extraction Disks. Minnesota Mning &
Manufacturing (3M). 09/01/91-02/28194. $36,318

O'Keefe S. F. Metabolism of Trans Isomers of Essential
Fatty Acids. International Life Sciences Institute.
01/01/93-12/31/94. $30,000
Otwell W. S. Development of Sanitation Rating System
and "Listera Index" for Blue Craband Shrimp.
United States Department of Commerce. 02/17/93-
03/31/95. $52,105
Percival S. S. Regulation of Copper and CuZn Superoxide
Dismutase. National Institutes of Health. 09/01/91-
08/31/93. $85,408
Sims C. A. Reduction of Phenolics and Harshness in
Muscadine Wines. Florida Department of
Agriculture & Consumer Services. 12/21/92-
12/31/93. $3,500
Thompson N. P. Agreement for Pesticide Testing.
University of California-rvine. 08/24/92-08/23/94.

Thompson N. P.

Southern Region Program to Clear Pest

Control Agents for Minor Uses. Rutgers University
05/30/92-02/28/94. $95,000
Thompson N. P. Southern Region Program to Clear Pest
Control Agents for Minor Uses. USDA-CSRS
(IR-4). 03/01/92-09/30194. 660,914 .
Wet C. Aquaculture Food Safety Residue Project.
Southern Regional Aquaculture Center 09/11/92-
09/30/93. $14,900
Wei C. Use of Chlorine Dioxide for Microbial Treatment

in Seafood. Bio-Cide International, Inc
04/01/93. $3,000


3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Forestry, School of Forest Resources and Conservation


118 Newins-Ziegler Hall
Gainesville, FL 32611
Telephone. 904-392-1850
Fax: 904-392-1707


Operational Alternatives for Establishing
Southern Pine Stands in Florida

A. J. Long


Nitrogen Efficiency as an Adaptive
Mechanism in Slash Pine

M. L. Duryea


Interim Chair & Prof.,

Assoc. Prof., For

t. Prof., Manage-



Asst. Prof., For. Biotechnology


T. L White

Pitch Canker Disease of Southern Pines.
Genetic Resistance and Epidemiology
G. M. Blakeslee

Response of Slash Pine Families to Acidic
Precipitation and Ozone Stress in North

J. D. Johnson


MARY L. DURYEA Assoc. Prof., Tree Physiol /

L G. Arvanitis

Genetic Improvement of Cold Hardiness and
Growth Traits of Eucalyptus Species for

D. L. Rockwood


VEL Prof., Ecology
Assoc. Sci, Quantitative

1,2 JON D. JOHNSON Assoc. Prof., Tree Physiology
1,2 ERIC J. JOKELA Assoc. Prof., Silviculture




Prof., Agroforestry,

2,3 HANS RIEKERK Assoc Prof., For. Hydrology
1,2 DONALD L. ROCKWOOD Prof., Forest Genet.
1,2 ROBERT A. SCHMIDT Prof., For. Path
1,2 ROGER S. WEBB Assoc. Prof, Forest Path.
1,2 TIMOTHY L. WHITE Assoc. Prof., Forest Genet.

UF/IFAS, USDA-CRIS Research Projects:


Epidemiology and Management of Fusiform
Rust on Southern Pine
R. A. Schmidt

Quantitative Genetics, Early Selectton, and
Tree Improvement of Southern Pines
T. L White

Modeling the Relationships among C, Water,
and P in a Slash Pine Plantation

K C. Ewel




Impact of Forest Management Practices on

Multiple Forest Values
W. H. Smith
D L. Rockwood J
W. R. Marion
H. L. Ghol
G, M. Blakestee L

W. L. Pritchett
D Johnson
L D. Haims
E.J. Jokela
. G. Arvaniis

Nutrition of Southern Pines
E. J. Jokela

Fundamental Research on Forest Biology

R. A. Schmidt
T. Miller
E. J Jokela


G. M. Blakeslee
J. D Johnson
T. L White

The National Atmospheric Deposition
H. Riekerk



Modeling Slash Pine
Tree Measurements
L. G. Arvanis

Growth from Individual

Market Structure and Performance of the
Forest Products Industry in Florida and the
R. C. Abt

Refereed Publications:

R-01679 Cook, S. and Ewel, K C.
Burned Cypress Swamps.
55'62-64 1992

Regeneration in
Florida Scientist

R-01919 Cropper, Jr., W P. and Gholz, H. L Smuation
of the Carbon Dynamics of a Florida Slash Pine
Plantation. Ecological Modelling 66:231-249

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

66 Forestry, School of Forest Resources and Conservation

de Souza, S. M.; Hodge, G. R. and White, T. L.
Indirect Prediction of Breeding Values for
Fustform Rust Resistance of Slash Pine Parents
Using Greenhouse Tests. Forest Science
38:45-60. 1992
Dean, T, J. and Johnson, J. D. Growth Response
of Young Slash Pine Trees to Simulated Acid
Rain and Ozone Stress. Canadian Journal of
Forest Research 22:839-848. 1992
Dean, T a J. and okela, E. J. A Density
Management Diagram for Slash Pine Plantations
in the Lower Coastal Plain. Southern Journal of
Applied Forestry 16:178-185. 1992
DeWald, L.; White, T. L. and Duryea, M. L.
Growth and Phenology of Seedlings of Four
Contrasting Slash Pine Families in Ten
Nitrogen Regimes. Tree Physiology 11:255-269.
Erdmann, T.; Nair, P. K. and Kang, B. T. Effects
of Cutting Frequency and Cutting Height on
Reserve Carbohydrates in Gliiciduu septum
(Jacq.) Walp. Forest Ecology and Management
57:45-60. 1993
Ewel, K. C. and Davis, H. T. Pondcypress
(Taxodium distichum var. nutans) Responds
Marginally to Thinning. Southern Journal of
Applied Forestry 16:175-177. 1992
Hall, P. M. and Meier, A. J. Notes on
Reproduction and Behavior of Western Mud
Snakes (Faranca abacura remwardci) in
American Alligator (Alligator inussissppiensis)
Nests. Copeta 1:219-222. 1993
Huber, D. A.; White, T. L. and Hodge, G. R.
The Efficiency of Half-sib, Half-diallel, and
Circular Mating Designs in the Estimation of
Genetic Parameters in Forestry: A Simulation.
Forest Science 38:57-776 1992
Jokela, E. J. and Steams-Smith, S. C.
Fertilization of Established Southern Pine
Stands: Effects of Single and Splt Nitrogen
Treatments. Southern Journal of Applied
Forestry 17:135-138. 1993
Kainer, K. A. and Duryea, M. L. Tapping
Women's Knowledge: Plant Resource Use in
Extractive Reserves, Acre, Brazil. Economic
Botany 46:409-425. 1992
Long, A. J. and Carrier, B. D. Effects of
Douglas-Fir 2 + 0 Seedling Morphology on Field
Performance. New Forests 7:19-32. 1993


Polglase, P. J.; Jokela, E. J. and Comerford, N B.
Leaching of Inorganic Phosphorus from Litter of
Southern Pine Plantations. Soil Science Society
of America 56:573-577. 1992

R-02141 Stearns-Smith, S and Abt, R. C; Joela, E. and Ab, R C.
Thinning and Fertlizing Southern Pine Stands
of the Lower Coastal Plain: Biological and
Economic Effects. Southern Journal of Applied
Forestry 16:186-193. 1992

Research Grants:
Arvanitis L. G. Chemical Specialties, Inc. Wood
Treatment Test Plots. Chemical Specialties, Inc.
10101/92-09/30/97. $875
Arvanitis L. G. Impact of Forest Practices on Multiple
Forest Values. USDA Forest Service. 01/01/93-
12/31/93. $110,000
Arvanitis L. G. Forest Management Plan for Big Cypress
and Brighton Indian Reservations, Florida. United
States Department of Interior. 05/19/93-07/30/94
Cropper W. P. Assessing Climate Change Effects:
Sensitivity Analysis of Ecological and Agricultural
Models. University of Miami. 10/01/91-09/30/93.
Cropper W. P. Modeling Carbon Dynamics of Slash Pine
Plantations in Response to Climate Change.
Environmental Protection Agency. 10/01/90-
06/30/93. $21,403
Davis J. M. Expression and Structure of Chininase Genes
From Eastern White Pine and Poplar. USDA Forest
Service. 05/04/93-09/30/94. $20,000

Johnson J D. Southern California Edison Study
Forest Service. 01/14/93-01/30/93. $961


Johnson J. D. Impact of Acidic Deposition and Ozone on
Southern Commercial Forests: An Assessment
North Carolina State University. 03/01/93-06/30/93.
Johnson J. D. Hydrocarbon Emissions from Southern Pines
and the Potential Effects of Global Climate Change.
University of Alabama. 07/01/92-10/31/93. $98,453
Jokela E. J. Cooperative Research in Forest Fertilzation.
Fla. Forestry Assoc. 01/01/92-12/31/92. $105,695
Nair P K An Analytical Model for Policy and Economic
Analysis of Agroforestry Projects. Institute de
Estrategias Agropecuaras/Quito Ecuador (IDEA)
07/01/92-12/31/93. $40,100

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Forestry, School of Forest Resources and Conservation

Nair P K. Soil Fertility and Productivity Aspects of Alley
Cropping Under Semi-arid Conditions at Machakos,
Kenya. The Rockefeller Foundation. 11/01/92-
01/31/93. $3,400
Reid C. P. Mooney-wood Treatment Test Plots. Mooney
Chemicals, Inc. 08/01/92-07/31/97. $2,300
Reid C. P. Osmose Wood Treatment Test Plots. Osmose
Wood Preserving, Inc. 08/01/91-07/31/96 $3,500
Riekerk H. Evapotranspiration Process in Pine Cypress
Flatwoods Wetlands. USDA Forest Service.
09/01/92-09/30/94. $49,500

Schmidt R

A. Partnership for Research in Fundamental

Forest Biology. USDA Food Safety & Inspector
Services, 09/01/92-09/30/94. $50,000

Schmidt R. A.

Schmidt R. A.

A Partnership for Fundamental Research

on Pine Productivity. Union Camp Corp. 01/01/90-
12/31/93. $50,000
Schmidt R. A. Integrated Forest Pest Management
Cooperative. Fla. Forestry Assoc. 07/01/93-06/30/94.

Webb K. S.

Evaluating The Biocontrol Potential of

Pathenogenic Fungi From Melaleuca Populations.
USDA Agricultural Research Service. 09/28/90-
Webb R. S. Preliminary Characterization of Red
Mangrove Disease. United States Department of

Commerce. 11/16/92-08/31/93

Webb R. S.

A Partnership for Fundamental Research

on Pine Productivity. Westvaco Corp. 01/01/90-
12/31/93. $50,000
Schmidt R. A. A Partnership for Fundamental Research
on Pine Productivty. Jefferson Smurfit Corporation.
01/01/90-12/31/93. $50,000
Schmidt R. A. A Partnership for Fundamental Research
on Pine Productivity. Champion Intl Corp.
01/01/90-12/31/93. $50,000


Evaluating Time-Release Nutrient and

Pesticide Applications for Management of Blister
Rust Disease and White Pine Weevil in White Pine.

Ontario Forestry Research Institute OFRI
03/31/94. $40,000


Webb R S Evaluating the Biocontrol Potential of
Pathogenic Fungi From Melaleuca Populations in
Australia and Florida. USDA Agricultural Research
Service. 09/28/90-09/14/95. $9,000
White T. L. Cooperative Forest Genetics Research
Program Fla. Forestry Assoc 07/01/91-12/31/94.

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

68 4-H and Other Youth Programs


111 Rolfs Hall
Gainesville, FL 32611
Telephone: 904-392-1744
Fax: 904-392-5184

Youth Spec.

Prof., Ext. Rural

Refereed Publications:


Mullis, A. K.; Mullis, R. L. and Normandin,
D. Cross-Sectional and Longitudinal
Comparisons of Adolescent Self-Esteem
Adolescncnce 2751-61. 1992

R-01873 Smith, M. H.; Beaulieu, L. J. and Israel, G. D.
Effects of Human Capital and Social Capital on
Dropping Out of High School in the South.

Research n Rural Education. p.

75-87. 1992

Assoc. Prof., Ext. 4-H

Research Grants:

UF/IFAS, USDA-CRIS Research Projects:

Beaulieu L. J.

Nursing Model Urinary Continence for

Older Rural Women. National Institutes of Health.

The Changing Structure of Labor Markets in
Nonmetropohtan Areas

L. J. Beaulieu

M. J. Cantrell

08/15/92-07/31/97. $32,014
Cantrell M. J Curnculum Development Graduate
Assistantship. Florida Foundation-4H 01/04/93-
12/31/94. $22,000

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

Home Economics

3001 McCarty Hall
Gainesville, FL 32611
Telephone: 904-392-1778
Fax: 904-392-8196



Dir & Prof
Asst. Prof., Human

Assoc. Prof, Interna-

tonal Ag. Dev.
2,3 MARK L. TAMPLIN Assoc. Prof., Food Safety

UF/IFAS, USDA-CRIS Research Projects:

R-01212 Smith, S. D. and Price, S Women and Plant
Closings: Unemployment, Reemployment and
Job Training Enrollment following Dislocaton.
Journal of Family and Economic Issues 13.45-72.


Smith, S. D. and Swisher, M. E. Employment of
Women m Florida's Ornamental Horticulture
Industry. Florida Scientist 55:65-74 1992

Research Grants:

Tampln M. L.

Effect of Storage and Depuration

Temperature on Pathogenic Vibrios in Shellfish.


09/15/92-09/30/94 $160,000

Tamplm M. L. Vibrto cholera 01 Testing of Brine Cysts.

University of Nebraska. 10/07/92-10/12/92



A Survey of Female Labor Force Activities in

Selected Industries
S. D. Smith

M. E. Swisher

Tamplm M. L. Vino cholera 01 Testing of Brine Cysts
Incubated at Two Temperatures University of
Nebraska. 08/20/92-09/13/92. $400



Safety and Quality of Molluscan Shellfish
M. L. Tampin

Effect of Storage and Deputation Tempera-
ture on Pathogenic Vibrios n Shellfish
M. L. Tamplin

Tamplin M. L.

Fecal Coliform Analyses of Shellfish and

Shellfish Havesting Waters. Florida Department of
Natural Reeources. 11/12/92-06/30/93. $20,902
Tamplin M. L. The Viable Form of Vibno vulmficus in
Cold Water Environments. United States
Department of Commerce 05/01/93-04/30/94.

Refereed Publications:

Smith, S. D. and Ingoldsby, B.


Family Studies: Educating Students for Diversity.
Journal of Famdy Relations 41:25-30. 1992

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

70 Horticultural Sciences


1137 Fifield Hall
Gaiesville, FL 32611
Telephone: 904-392-4711
Fax: 904-392-5653

VIMLA VASIL Scientist, Cell Tissue Culture


Assoc Prof., Citrus

UF/IFAS, USDA-CRIS Research Projects:

Chair and Prof., Seed

MARK J. BASSETT Professor, Plant Breeding
THOMAS A. BEWICK Assoc. Prof., Veg. Prod.


Molecular Biology


ssoc. Prof., Postharvest

Assoc. Prof., Molecular

Assoc. Prof., Biochem.

LL Assoc. Prof., Deciduous


Low Energy Management Systems for Young
Citrus Tree Care

F. S. Davies


J. j. Ferguson

Weed Control in Vegetable Crop Production

S. J. Locascio
W. M. Stall



Professor, Environmental

1,3 JAMES J. FERGUSON Assoc. Prof., Citrus

Professor, Biol




S. R. Kostewicz
T A. Bewick

Breeding, Cytogenetics, and Evolution of
Florida Blueberries
P. M. Lyrene

Application of Integrated Agrotechnologv for
Crop Production and Environmental Quality

J. D. Martsolf


Professor, Biochem. Genet

Professor, Nutrition

ssor, Postharvest

1,2 KAREN E. KOCH Prof, Plant Physiology





Assoc. Prof., Crop




Professor, Herbic.

Professor, Fruit Breeding


Professor, Climatology

1,2 DON R. McCARTY Assoc. Prof., Seed Physiology
1,2 GLORIA A. MOORE Professor, Fruit Breeding


G J. Hochmuth

Southern Region Program to Clear Pest
Control Agents for Minor Uses
W M. Stall

Vegetable Crops Physiology and Biochemistry
D. J. Canthffe

Biological Weed Control in Vegetable Crops
T. A. Bewtck

Chilling and Photopenod Effects on Carbo-
hydrate Allocation and Crop Yield i
R. L. Darnell

Development of Improved Carrot Cultivars
for Florida

M. J.Bassett

Deciduous Fruit and Nut Crops Cultivar



Fruit Breeding



Assoc. Prof., Postharvest

Professor, Temperate


Professor, Weed Control

Assoc. Prof.,


W. B. Sherman

P. M. Lyrene

G. A. Moore

Biological Control of Nutsedge with Fungal
T. A. Bewick

INDRA K. VASIL Prof. Grad. Res., Tissue Culture
& Genetic Mod.

3 Extension 4 Other UP or Cooperating Agency

1 Resident Instruction 2 Research

Selection, Anatomy, and Physiology of
FloodTolerant Mango Cultivars for Florida
and the Caribbean Basin
F S. Davies

Efficient Fertlization and Irrigation Practices
for Vegetables

S J. Locascio




G. J. Hochmuth

Molecular Analysis of Regulatory Gene
Interaction in Maize
D. R. McCarty

Molecular and Genetic Analysis of Low
Temperature Tolerance in Tomato
C. E. Vallejos

Postharvest Systems for Quality Maintenance

of Vegetables
S. A. Sargent





Horticultural Sciences 71

Molecular Genetics of Fertlity Restoration in
CMS Phaseolus vulgans

C. D. Chase


M.J Bassett
Mediated Repression of Alpha

Amylase Genes in Maize Aleurone

D. R. McCarty



I. K. Vasi

Chromatin Structure and Gene Expression in
R. J. Fert

Postharvest Physiology and Biochemistry of

I. K. Brecht


D. J. Huber

Regeneration and Genetic Transformation of
Cereal and Grass Species

I. K. Vasil

K. Brecht

Discovery and Development of Plant Patho-
gen for Biological Control of Weeds
T. A. Bewick

Genetics and Physiology of Sweet Corn
Quality, Pest Resistance and Yield

L. C. Hannah



D. J. Cantliffe

Efficient Citrus Nursery Propagation Practices
J. G. Wilhamson

Cellular and Molecular Genetics of Citrus
and Other Perennial Fruit Crops

G. A. Moore



K. C. Cline

Molecular Characterization of Sucrose
Synthase Genes of Maize
L. C. Hannah

Genetic Improvement of Beans (Phaseolus
vulgans L.) for Yield, Pest Resistance and
Food Value

M.J Bassett
C. D. Chase

C. E. Vallejos




V Vasil

Southern Region Program to Clear Pest
Control Agents for Minor Uses
W. M. Stall

Regulation of Photosynthetic Processes
K. E. Koch

Controlled Atmosphere Shipping of Carib-
bean Produce and Marketing Implications

S. A. Sargent





J. K. Brecht

Effects of Bioherbacdes on Competitive
Ability ofNutsedge
T. A. Bewick

High Resolution Mapping of the I Gene of
Common Beans
C. E Valletos

Genome Mapping to Facilitate Pest-Tolerant
Citrus Cultivar Development
G. A. Moore

Breeding Snap and Red Kidney Beans for
Golden Mosaic Resistance and Heat



Microrrigation of Horticultural Crops in
Humid Regions
S. J. Locascio

Research on Exotic Citrus Diseases (Citrus
Bacterial Spot, Cis Canker and Ctrus Canker and Ctrus
Tnsteza Virus)

K. C. Chne
E. Hiebert

M. J. Bassett

Refereed Publications:


G. A. Moore

Bassett, M. J. An Induced Mutant for Blue
Flowers in Common Bean that is Not Allelic to
V or Sal and is Linked to Fin Journal of
American Society for Horticultural Science
117'317-320 1992

3 Extension 4 Other UF or Cooperating Agency



1 Resident Instruction 2 Research

72 Horticultural Sciences

Bassett, M. J. Plioropic
Coat and Flower Color in
HortScience 27.254-256.

Effects of Gn on Seed
Common Bean.

Bassett, J.J. Characterization and nheritance of
Four Induced Leaf Mutations in Common Bean.
Journal of the American Society for
Horticultural Science 117:512-514. 1992
Bassett, M. J. and Silbernagel, M. J. An Induced
Mutation for Genetic Male Sterility in Common
Bean. Hort Science 27:1026-1027. 1992
Birkhold, K. T. and Darnell, R. L. Contribution
of Storage and Currently Assimilated Nitrogen
to Vegetative and Reproductive Growth of
Rabbiteye Blueberry. Journal of the American
Society for Horticultural Sciences 118:101-108.
Birkhold, K. T.; Koch, K. E. and Darell, R. L.
Carbon and Nitrogen Economy of Developing
Rabbiteye Blueberry Fruit. American Society for
Horticultural Science 117:139-145. 1992
Cantliffe, D.J. Plastic Mulch and Drip
Irigation Systems for Growing Lettuce on
Sandy Soils in Florida. Proceedings for the XII
Internationonal Congress of Plastics in
Agriculture. Granada, Spain, May 3-8, 1992.
pp. D-88-90.
Cantliffe, D. J. and Karchi, Z. Plastic Mulch and
Drip Irrigation Systems for Growing Lettuce on
Sandy Soils in Florida. Florida State
Horticultural Society Proceedings 105:340-342.
Chase, C. D. and Ortega, V. M. Organization
of ATPA Coding and 3' Flanking Sequences
Associated with Cytoplasmic Male Sterility
in Phaseolus vugaris L. Current Genetics
22:147-153. 1992
Chowdhury M. K and Vas, K. and Vas, I. K. Stably
Transformed Herbicide Resistant Callus of
Sugarcane via Microprojectile Bombardment of
Cell Suspension Cultures and Electroporation of
Protoplasts. Plant Cell Reports 11:494-498.
Chowdhury, M and K. and Vas, K. Molecular
Analysts of Plants Regenerated from
Embryogenic Cultures of Hybrid Sugarcane
Culivars (Saccharum spp.). Theoretical and
Applied Genetics 86:181-188. 1993
Cline, K. C.; Ellmger, W. F and Theg, S. M.
Protein-Specific Energy Requirements for
Transport Across or into the Thylakold
Membranes: Two Lumenal Proteins are


Transported in the Absence of ATP. Journal of
Biological Chemistry 267:2688-2696. 1992
Clough, G. H.; Locascio, S. J. and Olson, S M.
Mineral Concentration of Yellow Squash as
Affected by Imgation Method and Fertilzation
Management. American Society for
Horticultural Society 117:725-729. 1992

R-02589 Davies, F. S and Maurer, M. A. Reclaimed
Wastewater for Irgation of Citrus in Florida.
HortTechnology 3 2:163-167. 1993
R-02594 de Vetten, N.; Lu, G and Ferl, R. J. A Maize
Protein Associated with the G-Box Binding
Complex Has Homology to Brain Regulatory
Proteins. The Plant Cell 4:1296-1307. 1992
R-01697 DeWald, M. G.; Moore, G. A. and Sherman,
W.B. BIsozymes in Anans (Pineapple): Genetics
and Usefulness in Taxonomy American Society
for Horticultural Science 117:491-496. 1992
R-02344 Durham, R. E.; Lou, P. C.; Omitter, Jr, F G.
and Moore, G. A. Linkage of Restricton
Fragment Length Polymorphisms and Isozymes
in Citrus. Theoretical and Applied Genetics
84:39-48. 1992
R-02175 Ferl, R. J. and Paul, A. L. Chemical Detection
of Z-DNA within the Maize Adhl Promoter
Plant Molecular Biology 18.1181-1184. 1992


Gnanapragasam, S and Vasil, K
Cryopreservation of Immature Embryos,
Embryogenic Callus and Cell Suspension
Cultures of Gramienous Species. Plant Science
83:205-215. 1992

R-01983 Gnanapragasam, S. and Vasil, K.
Ultrastructural Changes in Suspension Culture
Cells of Pamcum maxmum during
Cryopreservation. Plant Cell Reports
11.169-174 1992


Hattonr, T; ; Vas, ; Rosenkrans, L., Hannah,
L. C.; McCarty, D. R. and Vasil, 1. K. The
Viviparous-I Gene and Abscisic Acid Activate
the Cl Regulatory Gene for Anthocyanin
Biosynthesis during Seed Maturation in Maze
Genes and Development 6:609-618. 1992

R-02361 Hochmuth, G. J.; Hanlon, E. A. and Cornell,
J. V. Watermelon Phosphorus Requirements in
Soils with Low Mehlch-I P Extractable
Phosphorus. HortScience 28:630-632. 1993


Huang, T. B., Darnel, R. L. and Koch, K. E.
Water and Carbon Budgets of Developing Citrus
Fruit. American Society for Horticultural
Science 117-287-293. 1992

3 Extension 4 Other UF or Cooperating Agency



I Resident Instruction 2 Research

Horticultural Sciences 73

R-01662 Huber, D J The Inactivation of
Polygalacturonase Associated with Isolated
Tomato Fruit Cell Wall: Implications for the
Analysis of Pectin Solubility and Molecular
Weight. Phystologia Plantarum 86:25-32. 1992
R-02926 Huber, D. J. and O'Donoghue, E. M. Analysis of
Polyuronmdes in Ripening Avocado (Persea
amencana) and Tomato (Lycoperszcon
esculentum) Fruits: Evidence for Differential
Restrictions in in vivo Depolymerization. Plant
Physiology 1024473-480 1993
R-02758 Ingram, L. D., Hannah, W W.; Bater, J. W. and
Hannah, L. C Origin of the Main Class of
Repetitive DNA Within Selected Pennsetum
Species. Molecular and General Genetics
23-350-356 1993
R-02051 Koch, K E.; Nolte, K. D., Duke, E. R.; McCarty,
D. R. and Avigne, W T. Sugar Levels Modulate
Differential Expression of Maize Sucrose
Synthase Genes. The Plant Cell 4.59-69. 1992
R-02987 Lawrence, S.; Cine, K. and Moore, G A.
Chromoplast Targeted Proteins in Tomato Fruit.
Plant Physiology 1027-789-794 1993
R-01221 Leskovar, D. and Canthffe, D. J. Pepper
Seedling Growth Response to Drought Stress
and Exogenous Abscisic Acid. American
Society for Horticultural Science 117-389-393
R-01334 Locascio, S. J.; Bartz, J. A. and Weingartner,
D P. Calcium and Potassium Fertilizaton of
Potatoes Grown i North Florida 1. Effects on
Potato Yield and Tissue Ca and issue Ca and K
Concentrations. American Potato Journal
69:95-104. 1992
R-01959 Lu, G and Fer, R. J. Site-Specific
Oligodeoxynucleotide Binding to Maize Adht
Gene Promoter Represses Adh -GUS Gene
Expression In Vivo. Plant Molecular Biology
19:715-723. 1992
R-02584 Lu, G.; DeLsle, A. J., DeVetten, N C. and Ferl,
R J. Brain Proteins in Plants. An Arabidopsis
Homolog to Neurotransmitter Pathway
Activators is Part of a DNA Binding Complex.
Proceedings of National Academy of Sciences
89:1490-1494. 1992
R-02891 Lu, G.; Wu, K. and Feri, R J. A cDNA for
Arabrdopsis Cyosic oso Rbsomal Protein S 1
Plant Gene Register 102 695-696 1993
R-O 1111 Lyrene, P M. Early Defoliation Reduces Flower
Bud Numbers on Rabbiteye Blueberry
HortScience 27.783-785 1992

R-02001 McCarty, D. R. The Role of VPI in Regulation
of Seed Mrauration in Maize Biochemical
Society Transactions 20:89-92. 1992
R-02278 McKendree, Jr., W. L. and Ferl, R. J. Functional
Elements of the Arabidopsis Adh Promoter
Include the G-Box. Plant Molecular Biology
19:859-862. 1992
R-02119 Moore, G. A.;Jacono, C. C., Nedigh, J L.;
Lawrence, S. D. and Cline, K. C. Agrobactenum-
Mediated Transformation of Citrus stem
Segments and Regeneration of Transgenic
PlanPlant Plant Cell Reports 1238-242. 1992
R-02939 Nolte, K. D and Koch, K. E. Companion-Cell
Specific Localization of Sucrose Synthase in
Zones of Phloem Loading and Unloading Plant
Physiology 101.899-905 1993


O'Donoghue, E. M. and Huber, D. J.
Modification of Matrix Polysacchardes During
Avocado (Persea amencana) Fruit Ripening An
Assessment of the Role of Endo-B- 1,4-
Glucanase. Phystologia Plantarum 86:33-42.

R-01362 OdellG. B;Cantiffe, D.J., Bryan, H H and
Stoffella, P. 1. Stand Establishment and Yield
Responses to Improved Direct-Seeding Methods
of Tomatoes. Hort Science 27 1185-1188. 1992
R-01761 Parera, C A. and Cantliffe, D. J. Enhanced
Emergence and Seedling Vigor in Shrunken-2
Sweet Corn Via Seed Disinfection and Solid
Matrix Prming American Society of
Horticultural Science 117:400-403. 1992


Parera, C. A. and Canliffe, D.J. Priming Leek
Seed to Improve Germination and Emergence at
High Temperature. HortScLence 27:1077-1079

R-02004 Parera, C. A.; QLao, P. and Canthffe. D J
Enhanced Germination of Celery at Stress
Temperature via Solid Matrix Priming
HortScience 28 20-22 1993
R-01978 Perkins-Veazie, P M. and Huber, D. J
Development and Evaluation of an In Vitro
System to Study Strawberry Fruit Development.
Journal of Experimental Botany 43:495-501
R-02683 Rahman, A. A.; Huber, D. J and Brecht, J.K.
Respiratory Activity and Mitochondrial
Oxidative Capacity of Bell Pepper Fruit Under
Low-Oxygen Atmosphere. Journal of the
American Society for Horticultural Science
118-470-475 1993

3 Extension 4 Other UF or Cooperatigs Agency

1 Resident Instruction Z Research

74 Horticultural Sciences

Sargent, S. A.; Brecht, J. K. and Zoellner, J. J.
Instrumented Sphere Impact Analyses of
Tomato and Bell Pepper Packing Lines. Applied
Engineering in Agriculture 8:76-83. 1992
Sargent, S. A., Brecht, J. K. and Zoellner, J. J.
Sensitivity of Tomatoes at Mature Green and
Breaker Ripeness Stages. Journal of American
Society for Horticultural Science 117:119-123.
Schultheis, J. R. and Cantliffe, D. J. Growth of
Somatic Embryos of Sweet Potato (lpomoea
batatas (L.) Lam) in Hydroxyethyl Cellulose
Gel Amended with Salts and Carbohydrates
Sclentia Horticulturae 50:21-33. 1992
Shaw, J. R. and Hannah, L. C. Genomic
Nucleotide Sequence of a Wild-Type Shrunken-
2 Allele of Zea mays. Plant Physiology
98:1214-1216. 1992
Shenoy, V. B. and Vasil, I. K. Biochemical and
Molecular Analysis of Plants Derived from
Embryogenic Tissue Cultures of Naptergrass
(Penmrseum purpureum K. Schum.). Theoretical
and Applied Genetics 83:947-955. 1992
Sherman, W. B.; Rodriquez-A, J. and Topp,
B. L. Florida Peaches and Nectarines Introduced
Non-Traditionally. Frut Varieties Journal
46:124-127. 1992
Shilling, D. G.; Dusky, J. A; Mossier, M. A and
Bewick, T. A. Allelopathic Effects of Celery
Residues on Lettuce. American Society of
Horticultural Sciences 117:308-312. 1992
Stall, W. M. and Bewick, T. A. Sweet Corn
Cultivars Respond Differenially to DPX-V9360.
American Society for Horticultural Science
27:131-133. 1992
Topp, B. L., Sherman, W B.; Huber, D. A.
and Linda, S. B. Combining Abilities of Five
Japanese Plum Cultivars for Resistance to
Xanchomonas Stem Canker. HortScience 28
7000. 1993


Williamson, J. G.; Castle, W. S. and Koch, K. E
Growth and 14C-Photosynthate Allocation in
Citrus Nursery Trees Subjected to Three Bud-
Forcing Methods. Journal of American Society
for Horticultural Science 117:37-40. 1992

R-03213 Yuan, J.; Henry, R. and Cline, K. Stromal Factor
Plays an Essential Role in Protein Integration
into Thylakoids that Cannot Be Replaced by
Unfolding or by Heat Schock Protein Hsp70.
Proceedings of the National Academy of
Sciences USA 90:8552-8556 1993

Non-Refereed Publications:
N-00738 Bender, R. J; Sargent, S. A., Brecht, J. K. and
Bartz, J. Effect of Tomato Grade on Incidence of
Decay During Simulated Shipping. Proceedings
of the Florida State Horticultural Society
105:119-121. 1992
N-00739 Brecht, J K.; Sargent, S. A.; Barm, J. A.;
Chau, K. V. and Emond, J. P. Irradiation
Plus Modified Atmosphere for Storage of
Strawberries. Proceedings of the Florida State
Horticultural Society 105 97-100. 1992
N-00418 Chee, R. P; Schultheis, J. and Candiffe, D. J
Micropropagation of Sweet Potato (Ipomoea
boatas L.). Biotechnology in Agriculture and
Forestry 19:107-117 1992
N-00750 Cmko, G. S.; Stall, W. M. and White, J. M
Sweet Corn Weed Control Evaluations on
Mineral and Organic Soils. Proceedings of the
Florida State Horticultural Society 105:326-330
N-00719 Locascio, S.J. Nitrogen and Potassium Source
and N-Rate for Drip-Irrigated Pepper. 1992
Proceedings of the Florida State Horticultural
Society 105:323-325. 1992
N-00673 Lyrene, P. M. and Payne, J A. Blueberry Gall
Midge: A Pest on Rabbiteye Blueberry n
Florida. Proceedings of the Florida State
Horticultural Society 105-297-300. 1992

Vallejos, C. E., Saki
C. D. A Molecular
Phaseolus vulgaris L.

yama, N. S. and Chase,
Marker-Based Map of
Genetics 131:733-740.

Vasil, V.; Castillo, A. M.; Fromm, M. E. and
Vasil, 1. K. Fertile Transgenc Herbicide
Resistant Wheat Plants Obtained by
Microprojectile Bombardment of Regenerable
Embryogenic Callus BLo/Technology
10:667-674 1992

Martsolf, J. D. Cold Protection Mechanisms.
Proceedings of the Florida State Horticultural
Society 105:91-94. 1992
Porter, G. W.; Richards, G. D.; Rodrguez-A, J
and Sherman, W B. Evaluation of Low-chill,
Non-melting Flesh Peaches for Fresh Market
Potential. Proceedings of Florida State
Horticultural Society 105-304-307. 1992

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research


Richards, G. D.; Porter, G. W; Rodriguez-A, J.

and Sherman. W B.

Pollen Production and

Cross Compatibility in Low-chill Japanese-type
Plum. Proceedings of Florida State Horticultural
Society 105:302-304. 1992
N-00721 Talbot, M. T., Sargent, S. A.; Baird, C. D. and
Brecht, J. K. Development of a Standardized
Pepper Container. Proceedings of the Flonda
State Horticultural Society 105:122-128. 1992


Terry, Jr., E. R. and Stall, W. M. Smooth
Amaranth Interference in Muskmelon.
Proceedings of the Florida State Horticultural

Society 105:319-321.

Research Grants:

Bassett M. J.

Breeding Snap and Red Kidney Beans for

Golden Mosaic Resistance and Heat Tolerance.
University of Puerto Rico 07/01/92-06/30/93,
Bassett M. J. Protocol and Genetic Stock Development for
Bean Seed Color and Pattern Determination. USDA

Agricultural Research Service

Bewick T. A.


Potential for Biological Control of Selected

Weeds With Plant Pathogens. USDA Office
International Cooperation & Development.
05/01/933/9-07/31/93. $3,600
Bewck T. A. Biochemical Basis of Resistance of Nutsedge
Biotypes and Species to Nutsedge Rust. USDA-
CSRS (Tropical Agricultural Research).
07/01/93-06/30/94. $55,324
Bewck T. A. Effects of Bioherbicides on Competitive
Ability of Nutsedge. USDA-CSRS (Tropical
Agricultural Research). 07/01/92-06/30/94. $27,500
Biggs R. H. Workshop on Stratospheric Ozone Depletion/
UV-B in the Biosphere North A lantic Treaty
Organization. 01/13/93-01/12/94, $28,320
Brecht J. K Postharvest Physiology of Vegetables Related
to Cobalt and High Temperature (Peace Fellowship).
Egyptian Embassy. 11/17/92-05/17/93. $6,150

Canthffe D. J

Volatile Evolution From Plants Growing in

a Closed Enviroment. National Aeronautic & Space
Admin. 07/01/92-06/30/95. $44,000
Cline K. C. Targeting and Assembly of Thylakoid
Membrane Proteins. National Institutes of Health.
02/01/92-01/31/96 $102,453
Darnell R. L. Fruit Sugars and Bird Predation: Genotypic
Variability in Strawberry Fruit Sugars and The
USDA Animal & Plant Health Inspection Service.
10/01/92-09/30/93. $10,000

Davies F S.

Horticultural Sciences 75

Microsprnkler Irrigation of Grapefruit in the

Flatwoods Using Reclaimed Water. St. Johns River
Water Management District. 10/20/89-09/30/93.
Ferguson J.J. Growth Response, Nutrition and Yield of
Young and Mature, Bearing Citrus Trees. Imperial
Oil. 01/04/93-12/31/93. $16,824

Ferguson J.

Fertilization of Young Citrus Trees with

Aggrand Fertilizer Amsol Inc. 04/01/93-12/21/93.
Ferguson J. J. Fertilization of Young Citrus Trees with
Plant Right Fertilizer. Agri-Cycle Inc. 04/01/93-
12/31/94. $2,100
Ferl R. J. Trans-acting Factors Regulating ADH Gene
Expression. National Institutes of Health.
01/01/89-12/31/93. $116,885

FerlR. J


Molecular Mechanisms of Ricin

Cytotoxicity. National Institutes of Health
07/01/92-05/31/95 $8,596

Ferl R.J. IFAS asCo-PI: Population Structure and
Conservation Genetics of Marine Turtles. National
Science Foundation. 07/01/93-06/30/94. $7250
Hannah L. C. Maize Endosperm Development. Pillsbury
Co Inc. 04/01/90-09/30/93. $33,800
Koch K. E. Genetic and Molecular Analysis of Sucrose
Metabolism in Maize National Science Foundation.
07/15/92-06/30/93. $80,000
Koch K E. Genetic and Molecular Analysis of Sucrose
Metabolism in Maize. National Science Foundation.
07/15/92-06/30/95. $85,000
McCarty D. R. Postdoctoral Research Fellowship in Plant
Biology Philip W. Becraft. National Science
Foundation. 01/01/93-12/31/94. $4,800
McCarty D R. Functional Analysis of the Viviparous-1
Gene of Maize. National Science Foundation
08/01/91-07/31/94. $100,000
Sargent S. A. Controlled Atmosphere Shipping of
Caribbean Produce and Marketing Implications
USDA-CSRS (Tropical Agricultural Research)


Sehnke P.


Structure Function Studies of Plant Toxins.

Cytogen -0/27/92-05/26/94. $12,500

Vallejos C. E

High Resolution Mapping of the I Gene

of Common Beans. USDA-CSRS/C 09/01/92-
08/31/94 $184,000
Vallejos C. E. Tagging Disease Resistances of Economic
Importance in the Caribbean Region. USDA-CSRS
(Tropical Agricultural Research). 07/01/91-06/30/94

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

76 Horticultural Sciences

Vasil I. K. Plant Cellular and Molecular Biology.
Monsanto Co. 07/17/92-07/16/93. $3.590
Vasil 1. K. Advances tn Plant Cell and Molecular Biology
Kluwer Academic Publishers, BV. 11/18/91-
11/17/94. $1,000

4 Other UF or Cooperating Agency

1 Resident Instricnon

2 Research 3 Extension

Microbiology and Cell Science 77


3103 McCarty Hall
Gainesville, FL 32611
Telephone: 904-392-1906
Fax: 904-392-8479

1,2 EDWARD M. HOFFMANN Chmn. & Prof.,
Immunology & Complement


Prof., Radiation Biology




1,2 HENRY C. ALDRICH Prof., Biological Ultra-

of Development

mental Microbiology

Microorganism Plants



Molecular Biology


Prof., Biochem.

Assoc Prof., Microbial

Assoc Scia, EM Specialist
Assoc. Prof., Environ-

Asst. Si., Biochem Genet




Prof, Biochemistry of Fungal

Assoc. Prof., Plant


Prof, Microbial & Cellular


Prof Biochemical Genetics in

Microorganisms & Plants

Grad. Res. Prof.,

Immunology, Lyphokines & Interferon

of Plant Protein Toxins


Prof., Structure Function

1,2 EDWARD P. PREVIC Assoc. Prof., Microbial
Pathogens of Plant Pests



Grad Res Prof.,

Gene-enzyme Regulation, Metabolic Control

Gene Amplification to Improve Nitrogen
Assimilation and Biomass Yield of
R. R Schmidt

Transcriptional Regulation of Plant Heat
Shock Genes
W. B Gurley

Cis- and Trans-acting Components of
T-DNA Promoter Function
W. B. Gurley

Removal and Recovery of Human Enteric
Viruses from Water using Modified Solids
S R. Farrah

Increasing Microbial Production of Alcohol
by Genetic Engineering
L. 0. Ingram

Degradation of Structural Polymers


merzation of Plant Cell Wall Polvuronides
J. F. Preston

Enhancing Beneficial Microorganisms in the
K. T. Shanmugam

Gene-Enzyme Relationships in Somatic Cells
and their Organismal Derivaives
R. A. Jensen

Production of Monoclonal Antibodies to
Viral, Bacterial and Protozoan Antgens
S. G Zam

Synthetic Peptide Technology for Structure/
Function Studies of Hormones and Cvrokines

H. M Johnson



Bacterial Physiology
1,2 STEVEN G. ZAM III Assoc. Prof, Parasitology
and Protozoology

UF/IFAS, USDA-CRIS Research Projects:


Molecular Biology of Hydrogen Metabolism
in Fermentative Bacteria
K. T Shanmugam




Genetic Engineering of Bacteria for Ethanol
L. 0. Ingram

Role of Phosphodiesterases and
Glycohydrolases in Fungal Cell Wall
J. E. Gander
Gene Regulation during Oogenesis and Early
F. C. Davs

3 Extension 4 Othe UF or Cooperating Agency

I Resident Instruction 2 Research

78 Microbiology and Cell Science


Refereed Publications:

Ansar, S A.; Farrah, S. R. and Chaudhry, G. R.
Presence of Human Immunodeficiency Virus
Nucleic Acids in Wastewater: Detection by
Polymerase Chain Reaction. Applied and
Environmental Microbiology 34:3984-3990
Arfman, N., Worrell, V. and Ingram, L. 0. Use
of the tac Promoter and lacla for the Controlled
Expression of Zymomionas mobdis Fermentative
Genes in Eschenchia col and Zymomoras mobilas.
Journal of Bacteriology 174:7370-7378. 1992
Asghan, A.; Farrah, S. R. and Bitton, G. The
Use of Hydrogen Peroxide Treatment and
Crystal Violet Agar Plates for the Selective
Recovery of Bacteriophages from Natural
Environments. Applied and Environmental
Microbiology 58-1159-1163 1992
Barbosa, M. F.; Beck, M. J.; Fein, J. E.; Potts, D
and Ingram, L. Efficient Fermentation of
Pimnus sp. Acid Hydrolysates by an
Ethanologenc Strain of Eschenchia col. Applied
and Environmental Microbiology 58:1382-1384.
Barros, M. D.; Czarnecka, E. and Gurley, W B.
Mutational Analysis of a Plant Heat Shock
Element. Plant Molecular Biology 19:665-675.
Beall, D. S. and Ingram, L. 0 Geneic
Engineering of Soft-Rot Bacteria for Ethanol
Production from Lignocellulose. Journal of
Industrial Microbiology 11:151-155. 1993
Beall, D., Ingram, L.; Ben-Bassat, A., Fowler, D.;
Hall, R. and Wood, B. Conversion of
Hydrolysates of Corn Cobs and Hulls into


Ethanol by Recombinant Eschenchia col B
Contaming Integrated Genes for Ethanol
Production. Biotechnology Letters 14.857-862
Bonner, C. A.; Rodriques, A.; Miller, J. A. and
Jensen, R. A. Growth Inhibition of Nictana
silvesn in Tissue Culture by Aromatic Amino
Acids. Physiologia Plantarum 84:319-328. 1992

Serum Resistance as a Mechanism of
Pathogenicity of BruceLa abortus
E. M. Hoffman

Safety and Quality of Molluscan Shellfish
H. C. Aldnch

Genetic Engineering of Bacteria for Ethanol
L. 0. Ingram

Effect of Storage and Deputation Tempera-
ture on Pathogenic Vibrios Shellfish
H. C. Aldrich

3 Extension 4 Other UF or Cooperating Agency




R-02211 Brigmon, R. L.; Zam, S. G.; Biton, G. and
Farrah, S. R. Detection of Salmonella entenudts
in Environmental Samples by Monoclonal
Antibody Based ELISA. Journal of
Immunological Methods 152.135-142 1992
R-01831 Buimaraes, W. V; Dudey, G. L. and Ingram,
L. 0. Fermentation of Sweet Whey by
Ethanologenic Eschenchm coli. Appled and
Environmental Microbiology 40:41-45. 1992
R-02847 Burchardt, G.; Keshav, K. F., Yomano, L and
Ingram, L. 0. Segmental Stabilizaton of
Transcripts from the Zymom he Zmomonas mobs gap-pkg
Operon: Mutational Analysis. Journal of
Bacteriology 175:2327-2333. 1993
R-01832 Burchhardt, G. and Ingram, L. 0. Conversion
of Xylan to Ethanol by Ethanologenic Strains of
Eschericha cob and Klebsella oxytoca. Applied
and Environmental Microbiology 58:1128-1133
R-02445 Czarecka, E., Ingersoll, J C. and Gurley, W B
AT-Rich Promoter Elements of Soybean Heat
Shock Gene Gmhsp 17.5E Bind Two Distinct
Sets of Nuclear Proteins m vitro Plant
Molecular Biology 19-985-1000. 1992
R-00994 Davis, F. C., Shelton, J. C. and Ingram, L. D.
Nucleotide Sequence of a Repeating Unit from
the Urechis caupo Core Histone Gene Tandem
Repeat. DNA Sequence 2:247-256. 1992
R-02046 Doong, R. L.; Gander, J. E.; Ganson, R. and
Jensen, R. The Cytosolic Isoenzyme of 3-deoxv-
D-arabino-heptulosonate 7 phosphate Synthase
in Spmacra oleracea and Other Higher Plants
Extreme Substrate Ambiguity and Other
Properties. Physiology Plantarum 84 351-360
R-02155 Doong, R. L. and Jensen, R. A Synonymy of
the Three Apparent Isoenzymes of 3-Deoxy-
Darabino-Heptulosonate 7-Phosphate Synthase
in PTsum sativum with 3-Deoxy-D-Manno-
Octulosonate 8-Phosphate Synthase and the
DS-Co/Ds-Mn Isozyme Pair. The New
Phytologist 121:165-171 1992

1 Resident Instruction 2 Research

Microbiology and Cell Science

R-02303 Doong, R L.; Ganson, R. J. and Jensen,R A
Plastid-locahzed Isoenzyme of 3-deoxy-D-
arabno-heptulosonate 7-phosphate Synthase
(Ds-Mn): The Early-Pathway Target of
Sequential Feedback Inhibition in Higher
Plants. Plant, Cell & Envr. 16393-402. 1993
R-02532 Fox, P, C.; Vasil, V.; Vasil, I K. and Gurley,
W. B Multiple ocs-like Elements Required for
Efficient Transcription of the Mannopine
Synthase Gene ofT-DNA in Maize Protoplasts.
Plant Molecular Biology 20.219-233. 1992
R-02696 Gokhale, J U.; Aldrich, H. C.; Bhatnagar, L.
and Zeikus, J. G Localization of Carbon
Monoxide Dehydrogenase in Acetate Adapted
Metlanosarcma barken. Canadian Journal of
Microbiology 39:223-226 1993
R-02342 Griggs, N. D; Jarpe, M. A.; Pace, J. L.; Russell,
S. W. and Johnson, H. M. The N-terminus and
C-terminus of Interferon-g Binding Domains for
Cloned Soluble Receptor. Journal of
Immunology 149:517-520. 1992
R-02237 Gnggs, N. D; Pontzer, C. H.; Jarpe, M. A. and
Johnson, H M. Mapping of Multiple Binding
Domains of the Superantigen SEA for HLA.
Journal of Immunology 1482516-2521. 1992
R-00052 Hoffmann, E. M.; Houle, J J. and Eisenschenk,
F. C. Purification of the Ninth Component of
the Bovine Complement Cascade. American
Journal of Vet. Research 53:435-439. 1992
R-02561 Houle, J. J and Hoffmann, E. M. Antibodies
Specific for Human Albumin Function as
Blocking Antibodies When Attached to
Erythrocyte-Bound Albumin. Biochemistry
Biophys. Res. Comm. 194:1161-1166. 1993
R-01892 Johnson, H. M.; Downs, M. O. and Pontzer,
C. H. Neuroendocrine Peptnde Hormone
Regulation of Immunity. Chemical Immunology
52:49-83. 1992
R-01603 Mela, J P; Burnett, M E.; An, H., Barnell,
W. 0.; Keshav, K. F., Conway, T and Ingram,
L. 0. Coordination of Zymomonas mobibs
Glycolytic and Fermentative Enzymes A
Simple Hypothesis Based on mRNA Stability.
Journal of Bacteriology 174:6438-6443. 1992

Pontzer, C. H ; Griggs, N. D and Johnson,
H. M. Agonist Properties ofa Microbial
Superantigen Peptide Biochemical and
Biophysical Research Communication
1931191-1197 1993
Pontzer, C. H., Irwin, M J., Gasciogne, N. R.
and Johnson, H. M. T Cell Antigen Receptor

Binding Sites for the Microbial Superantigen
SEA. Proceedings of Microbiology and Cell
Science 89:7727-7731. 1992
R-01847 Preston, J. F; Rice, J. D.; Ingram, L. 0. and
Keen, N. T. Differential Depolymerizaton
Mechanisms of Pectate Lyases Secreted by
Erninia chrysanmhem EC16. Journal of
Bacteriology 1742039-2042 1992
R-02280 Robinson, S G.; Yeung, A. T. and Schmidt,
R. R. Evidence for Multiple-Forms of Chlorella
soroknmuna Dthydroorotase Purification and
Characteristics of a Dithiochreitol-Independent
Form Plant Physiology (Life Science
Advances) 11.89-98 1992
R-02122 Russell, J. K., Jarpe, M. A and Johnson, H. M.
Evidence for the Alpha-Hehcity of Class II
MHC Molecular Binding Sites for the
Superantigen, Staphylococcal Enterotoxin A.
Biochemical and Biophysical Research
Communications 182:1016-1024 1992


Soos, J. M., Russell, J K.; Jarpe, M. A.; Pontzer,
C. H. and Johnson, H. M Identification of
Binding Domains on the Superantigen, Toxic
Shock Syndrome Toxin 1, for Class 1 MlHC
Molecules. Biochmemical and Biophysical
Research Communications 191 1211-1217.

R-02669 Stem, W. L.; Aldrch, H. C., McDowell, L. M.;
Morris, M. W. and Prodgeon, A M. Amyloplasts
from Cortical Root Cells of Spiranthodeae
(Orchidaceae). Protoplasma 172 49-55. 1993


Wood, B. E. and Ingram, L. 0 Ethanol
Production from Cellobiose, Amorphous
Cellulose, and Crystalline Cellulose by
Recombinant Klebstella oxyoca Containing
Chromosomally Integrated Z mobilis Genes for
Ethanol Production and Plasmids Applied and
Environmental Microbiology 58:2103-2110.

R-02154 Xia, T. and Jensen, R A. Monofunctional
Chorismate Mutase from Serratta rubiaea: A
Paradigm System for the Three-Isozyme Gene
Family of Enteric Bacteria Archives of
Biochemistry and Biophysics 294147-153 19


Xia, T. H, Zhao, G. and Jensen, R. A Loss of
Allosteric Control but Retention of the
Bifunctional Catalytic Competence of a Fusion
Protein Created by Excision of the 3' 260-bp of
pheA from Erwmia herbrcola. Applied and
Environmental Microbiology 5:2792-2798.

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

80 Microbiology and Cell Science

R-02797 Xia, T.; Song, J.; Zhao, G.; Aldrich, H. and
Jensen, R. A. The aroQ-encoded
Monofunctional Chorismate Mutase (CM-F)
Protein: A Periplasmic Enzyme in Eriua
herbicola but Cryptic in Eschencha coli. Journal
of Bacteriology 175:4729-4737. 1993
R-02146 Xia, T; Zhao, G.; Fischer, R. S. and Jensen,
R. A. A Monofunctional Prephenate
Dehydrogenase Created by Cleavage of the 5'
109-bp of the tyrA Gene from Enr ia herbicola.
Journal of General Microbiology 138:1309-1316.
R-02895 Yomano. L. P.; Scopes, R. K. and Ingram, L. O.
Cloning and Sequencing of the
Phosphoglycerate Mutase Gene from Zymomonas
mobilis mobibsoias. Journal of Bacteriology
175:3926-3933. 1993
R-02524 Zhao, G., Xia, T. and Jensen, R. A. Cloning
and Sequencing of the phe/tyrA/aroF Region
from Edwmia herbicola: An Emerging Comp.Basis
for Analysis of Gene Org. & Reg. in Enteric
Bacic Protein. Journal of Molecular Evolution
36:107-120. 1993
R-02681 Zhao, G.; Xia, T.; Aldrich, H. and Jensen, R. A.
Cyclohexadienyl Dehydratase from Pseudomonas
aerugmosa is a Periplasmic Protein. Journal of
General Microbiology 139-807-813. 1993
R-01936 Zhao, G.; Xia, T.; Fischer, R. S. and Jensen,
R. A. Cyclohexadienyl Dehydratase from
Pseudomonas aerugmsa: Molecular Cloning of
the Gene and Characterization of the Gene
Product. Journal of Biological Chemistry
267:2487-2493. 1992
R-02364 Zhao, G., Xia, T.; Ingram, L 0. and Jensen,
R. A An Allosterically Insensitive Type of
Cyclohexadtenyl Dehydrogenase from
Zymomonas mobtis. Eur. Journal of Biochemistry
212:157-165. 1993

Non-Refereed Publications:


Fischer, R. S.; Fischer, B. E and Jensen, R. A.
In: Mycoplasmas: Molecular Biology and
Pathogenesis (J. Maniloff, R. N. McElhaney,
L. R Finch, and J. B. Baseman, Eds.) Chapter 12.
pp 201-209. Source of Amino Acids. ASM
Publications ISBN 1-55581-050-OJD 1992

N-00578 Ingram, L. O. Genetic Engineering of Novel
Bacteria for the Conversion of Plant
Polysacchartdes into Ethanol. American
Chemical Society Symposium on Biotechnology.
p 4504-4508. 1992

Research Grants:
Farrah S. R. RCID RO Health Effects University of
Florida Virus Testing Part 2. Reedy Creek
Improvement District. 07/22/92-07/21/93 $40,320
Farrah S. R. Virus Monitoring of Clormated Effluents and
Well Water at the Kanapaha Wastewater Treatment
Plant. Gamesvile Regional Utilities. 12/01/92-
11/30/93. $20,160
Farrah S, R. Virus Monitoring of Effluent From Joint
Facilities. Orange Co. 12/21/92-09/30/93 $32,544
Gurley W. B. Transcriptional Regulation of Plant Heat
Shock Genes. National Institutes of Health.
08/29/88-07/31/94. $103,596
Hoffmann E. M. Return of Royalties Account. UF
Research Foundation, Inc. 05/24/93-12/31/99.
Ingram L. 0. Genetic Engineering of Bacteria for Ethanol
Production. USDA-CSRS/C. 09/01/92-08/31/95
Jensen R. A. Biosynthesis and Regulation of Aromatics
in Pseudomonos. National Insttutes of Health.
07/01/88-06/30/93. $127,525
Johnson H. M. In Vivo Antitumor Activity of Otp-1 in
Mouse Transplantable Tumor Models Pepgen
Corporation. 11/01/92-10/31/94 $72,000
Johnson H. M. Structure/Function of Pregnancy
Recognition Hormone. National Institutes of
Health. 09/30/89-11/30/94 $159,211
Johnson H M. Staphylococcal Enterotoxins.
Superantigen BRM's. National Institutes of Health
03/01/93-02/28/98. $180,548
Johnson H. M. Gamma Interferon: Regulatory and Anin-
tumor Effects. National Institues of Health.
06/01/93-05/31/98. $213,459
Shanmugam K. T. Regulation of H2 Metabolism in E coli
by Molybdate. National Institutes of Health.
01/01/93-12/31/96. $89,202

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Plant Pathology


1453 Fifield Hall
Gainesville, FL 32611
Telephone: 904-392-3631
Fax. 904-392-6532



Chair & Prof.

Control of Postharvest Decay of Fruits and
J. A. Bartz

Soilborne Disease in Agroecosystems of
South Florida

D. J Mitchell


BARTZ Assoc. Prof., Post Harvest



Prof., Plant Disease


cal Control of Weeds




Prof. Adj., Molecular

Prof., Turf Diseases


Genetics of Pathogenicity of Xanthomons
campesims pv. vesicatona
R. E. Stall

Diseases of Turfgrasses

T. E Freeman
R. D Berger


Assoc. Prof., Bacterial/Plant


Prof., Virology

JAMES W. KIMBROUGH Prof., Mycology

Host-parasite Interactions
Vegetable Diseases
Sol-borne Pathogens


oc. Prof, Physiology of

Prof., F:eld Crop &

:. Prof., Biocontrol

,, Bio. of Sol-borne




f., Biochemistry/

Prof., Virology

LAURENCE H. PURDY JR Prof, Diseases of
Sugarcane & Cacao
DANIEL A. ROBERTS Prof., Alfalfa Diseases,
GARY W. SIMONE Assoc. Prof., Extension
Ornamental & Veg Crops Diseases


Prof., Bac. Plant Pathogens
LER Prof., Virology


G. W Simone

Relationships of Xanthomonas Species
R. E. Stall

Soybean Breeding
R D. Berger

Phylogenenc Relattonships of Pezizales
(cup-fungi) and Tuberales (truffles)
J. W. Kimbrough

Curation of the Mycological Herbarium of
the University of Florida
J. W. Kimbrough

Controlling Virus Diseases of Tropical Fruits
and Edible Aroids

C. L. Niblet

Development of Potyviral-Resstant
Cucurbits for the Caribbean Region

E. Hieben


D E. Purciull

Management of Diseases of Field Crops in
North Florida

T. A. Kucharek


UF/IFAS, USDA-CRIS Research Projects:


Etiology, Epidemiology, and Control of
Disease of Alfalfa


F. M. Shokes

Identification, Epidemiology and Control of
Viruses Infecting Ornamentals, Root Crops
and Legumes
F. W Zettler

Discovery and Development of Plant
Pathogens for Biological Control of Weeds

D. A. Roberts

R. Charudattan

T E Freeman


Characterization, Etiology, Epidemiology,
and Control of Virus and Virus-Like Diseases
of Citrus

C L. Niblett


Molecular Approaches for Charactenrzanton
and Control of Cucurbit Potyviruses

E. Heibert

D E. Purcifull

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research

82 Plant Pathology



Biological Control of Selected Arthropods,
Pests and Weeds through Introduction of
Natural Enemies
R. Charudattan

Heritability of Resistance to Witches' Broom

in Theobroma cacao
L. H. Purdy


Development of Geminivirus Resistant
Tomatoes Through Plant Transformation
with Viral Genomes

E. Hiebert


R. J. Schnell

MtDNA Divergence in Phyhdum and
Selection of DNA Markers for Isolate

F. N. Martin

Management of Rhizosphere Dynamics to
Control Soilbome Pathogens
F. N. Martin

Control Measures for Viruses and Other
Pathogens ofTaro, Cocoyam, and Other
Field-grown Aroids

F. W. Zettler
D. E. Purifull





E. Htebert


High Resolution Mapping of the I Gene of
Common Beans

E. Hiebert

Refereed Publications:


Barz, J. A.; Locascio, S. J. and Wengartner,
D. P. Calcium and Potassium Fertilization of

Potatoes Grown in North Florida.

Detection and Characterization of Strains of
Xanthomonas campestrs pv vesicatona
R. E. Stall

Genetic Exchange in the Genus Pythzum
F. N. Martin

Chromosome Structure of Plant Pathogenic
H. C Kistler

Characterization of Waves of Plant Disease in
the Early Stages of Epidemics

II. Effect on

the Bacterial Soft Rot Potential in the Tubers.
American Potato Journal 69:39-50. 1992
R-02395 Benny, G. L. Observations on Thamnidiaceae
(Mucorales). V. Thamnulium. Mycologia
84:834-842. 1992
R-02811 Benny, G. L. and Benjamin, R. K. Observations


on Thamnidiaceae (Mucorales). VI Two New
Species of Dichotomocilaxum and the Zygospores
of D. hesseline. Mycologia 85:660-671. 1993
Benny, G L. and Schipper, M. A Observations

on Thammdiaceae (Mucorales)
Mycologa 84 52-63. 1992

IV Pirella.

D. A. Roberts

Research on Exotic Citrus Diseases (Citrus
Bactenal Spot, Citrus Canker and Citrus

Tristeza Virus)
D. W Gabriel

C. L. Niblett

R. E. Stall



R-01651 Benny, G. L.; Benjamin, R. K. and Kirk, P. M.
A Reevaluation of Cunninghamellaceae
(Mucorates). Sigmoideomycetaceae fam. nov
and Reticulocephas gen. nov., Cladistic Analysis
and Description of Two New Species. Mycologia
84:615-641. 1992


Analyses on Miniature and the Two Sucrose
Synthase Genes in Maize
P S. Chourey

Development of Monoclonal Antibodies for
Serological Differentiation of Bean Golden
Mosaic Virus Isolates

E. Hebert


D E. Purcifull

Development of Potyviral-Resistant Musk-
melons for the Caribbean Region
E. Hiebert


DeFeyter, R.; Yang, Y and Gabriel, D. W
Genes-for-Genes Interactions Between Cotton
R Genes and X. campesms pv malvaceamm.
Molecular Plant-Microbe Interactions
6:225-237. 1993

Kane, E. J ; Wilson, A. J

and Chourey, P. S

Mitochondnal Genome Variability in Sorghum
Cell Culture Protoclones. Theoretical and
Applied Genetics 83:6-7. 1992
R-03060 Kingsley, M T; Gabriel, D. W., Roberts, P. D
and Marlow, G. C. The opsX locus of
Xanthomonas campesms Affects Host Range
and Biosynthesis of Lipopolysaccharide and
Extracellular Polysaccharde. Journal of
Bactenology 175.5839-5850. 1993

3 Extension 4 Other UF or Cooperating Agency



R. D. Berger


1 Resident Instruction 2 Research

Plant Pathology

R-02518 Liyanage, H. D.; Koller, W.; McMillian, Jr, R. T
and Kistler, H. C. Variation in Cutmase from
Two Populations of Colletomchum gloeosporiodes
from Citrus. Phytopathology 83:113-116 1993
R-02307 Lyanage, H D.; McMillan, Jr., R. T. and
Kistler, H. C. Two Genetically Distinct
Populations of Colletotrichum gloeosponoides from
Citrus. Phytopathology 82.001-006 1992
R-02091 Mata, L. C., Kimbrough, J W. and Erdos, G.
Ultrastructural Studies on Glomales. I.
Problems with Fixation and Embedding of
Arbuscular Mycorrhizal Fungi. Mycologia 85
2323-330 1993
R-02059 Miller, M. E. and Chourey, P. S The
Miniature-1 (mn-I) Seed Mutation is Deficient
in Invertases and is Associated with Aberrant
Pedicel and Endosperm Development in Maize.
The Plant Cell 4:297-305. 1992
R-02933 Pappu, H. R.; Pappu, S. S.; Manjunath, K. L.;
Lee, R. F. and Niblett, C. L. Molecular
Characterizatton of a Structural Epitope that is
Largely Conserved Among Severe Isolates of a
Plant Virus. Proceedings of the National
Academy of Sciences, USA 90:3641-3644. 1993
R-02022 Schuerger, A. C. and Mitchell, D. J. Effects of
Temperature and Hydrogen Ion Concentration
on Attachment of Macrocondia of Fusanum
solao f. sp. phaseoh to Mung Bean Roots in
Hydroponic Nutrient Solution. Phytopathology
82:1311.1311.1319. 1992
R-02024 St. Hill, A. A.; Zettler, F W. Elliott, M. S.,
Petersen, M. A.; LI, R. H. and Bird, J. Presence
of Passiflora Latent Virus and a Serologically
Distinct Strain of Maracuja Mosaic Virus in
Passfl i Fora Florida. Plant Disease 76.843-847.
R-01638 Swarup, S.; Yang, Y and Gabriel, D. W. A
Xanthomonas cm Pathogenicity Gene, pthA,
Plieotropically Encodes Gratuitous Avirulence
on Non-Hosts. Molecular and General Genetics
5:204-213. 1992
R-01351 Wu, C. G. and Kimbrough, J. W.
Ultrastructural Studies on Ascosporo-genesas in
Ascobolus immersus (Pezizales, Ascomycetes).
Mycologia 84:459-466. 1992


Wu, C. G. and Kimbrough, J. W. Ultrastructure
of Ascospore Ontogeny m Aleura, Octospora,
and Pulvinula (Otideaceae, Pezza[es).
International Journal of Plant Science
154:334-349 1993


Wu, C G. and Kimbrough, J. W.
Ultrastructural Investigtion of Humanaceae
(Pezizales, Ascomycetes). III Ascosporogenesis
of Mycolachnea hemisphaenca (Tribe Lachneae).
International Journal of Plant Science
153:128-135 1992

R-02819 Zettler, F. W.; Elliott, M. S., Purciful, D. E.;
Mink, G. I.; Gorbet, D. W and Knauft, D. A.
Production of Peanut Seed Free of Peanut Stripe
and Peanut Mottle Viruses in Florida. Plant
Disease 77-747-749 1993

Non-Refereed Publications:
N-00586 Charudatran, R The Role of Pesticides in
Altering Biocontrol Efficacy Pesticide
Interactions in Crop Production 22. 1993
N-00585 Kucharek, T. A Tervla, R and Washington, J
The Occurrence and Control of Target Spot in
Tobacco in Florida Caused by Rhzoctonza solanm.
Soil and Crop Science Society 51.103-106

Research Grants:
Hiebert E. Molecular Approaches for Studying the
Interaction of Gemmvirus with Their Whitefly
Vector. USDA-ARS (Binatonal Agricultural
Research Development). 08/15/91-08/14/93 $41,900
Kimbrough J. W. To Provide Salary and Expense Funds
UFResearch Foundation, Inc 01/24/92-06/30/94.
Kistler H. C. The Molecular Karyotvpes of Pathogenic
Strains of Fusanum Oxysporum USDA-ARS
(Binanonal Agricultural Research Development)
08/19/91-08/18/93 $35,000
Martin F N. MtDNA Divergence in Pythium and
Selection of DNA Markers for Isolate
Indentification. USDA-CSRS/C 08/01/92-07/31/94

Niblett C. L. Chimeric Open
Sorghum Mitochondria
Research Service. 04/27

SReading Frames of Male-
USDA Agricultural
/93-03/31/96. $81,000

Stall R. E. Detection of the Pathogen of the Watermelon
Fruit Blotch Disease with the Polymerase Chain
Reaction American Seed Research Foundation.
04/01/93-03/31/95. $17,400
Zettler F. W. Caribbean Basin Fellowship Program. USDA
Office International Cooperation & Development
01/01/93-12/31/93 $10,800

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Plant Pathology

Zettler F. W. Production and Maintenance of Pathogen
Free Bulb Crops Under Field Conditions in Florida.
American Floral Endowment. 01/01/93-12/31/93.

Zettler F. W Development of Control Methods for Virus
and Other Pathogens of Taro, Cocoyam and Other
Field Grown Aroids. USDA-CSRS (Tropical
Agricultural Research). 07/01/90-06/30194. $22,000

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research




Refereed Publications:

Mehrhof Building
Gainesville, FL 32611
Telephone: 904-392-1931
Fax: 904-392-3047
Poultry Eval Ctr, Chip

and Mgt.

Acting Chair & Prof.
VAS Prof., Supervisor, Fla
Prof, Poultry Nutrition
Grad. Res. Prof, Poultry

oc Prof., Poutry Physiol.
Prof., Poultry Nutrition

R-02597 Abdallah, A. G., Harms, R. H.; EI-Husseiny, .
and Arafa, S. A. Performance of Hens Laying
Eggs with Good or Poor Shell Quality when Fed
Diets with Different Calcium and Phosphorus
Levels. PoultrvScience72 1881-1891. 1993


Aboul-Ela, S; Wilson, H R. and Harms, R. H.

The Effects of Dietary Protein Level on the
Reproductive Performance of Bobwhite Hens.
Poultry Science 71.1196-1200. 1992
R-02405 Birkhold, S. G., Janky, D. M. and Sams, A. R
Tenderization of Early-Harvested Broiler Breast
Fillets by High Voltage Postmortem Electrical
Stimulation and Muscle Tensioning. Poultry
Science 71.2106-2112. 1992

1,2,3 MICHAEL D. OUART Assoc. Prof., Extension
1,2,3 DON R. SLOAN Assoc. Prof, Poultry Mgt.


Asst. Prof., Products
)N Prof, Poultry Physiol.

UF/IFAS, USDA-CRIS Research-Projects:


Damron, B. L. and Flunker, L. K. 2-Hydroxy-4
(Methylthio) Butanoic Acid as a Drinking
Water Supplement for Broiler Chicks Poultry
Science 7:1695-1699 1992

R-02901 Damron, B. L. and Flunker, L. K. Broiler Chick
and Laying Hen Tolerance to Sodium
Hypochlorite in Drinking Water. Poultry
Science 72:1650-1655. 1993


Production, Hatchabiity and Product Quality
of Bobwhite

H. R. Wilson
D. M. Janky

R. D Miles

R-01753 Damron, B. L and Flunker, L. K.

Response of

White Leghorn Hens to Various Dietary Levels
of Croalana and Nutrient Fortification as a
Means of Alleviating Depressed Performance
Poultry Science 55 4. 1992

Systems for Providing and Controlling
Interior Environments for Poultry and

D. R. Sloan



F. B. Mather

Influence of Water Quality, Feed and Water
Additives upon Poultry Performance
B. L. Damron

Evaluation of the Amino Acid Requirement
of Commercial Laying Hens and Broiler
Breeder Hens

R. H. Harms


D. R. Sloan

Factors Affecting Mineral Utilization,
Immune Response and Performance of

R. D. Miles

R-02232 Ernst, R. A. and Mather, F. B

Effect of Lightng

Age on Performance of Leghorn Pullers.
of Applied Poultry Research 1:291-295.


R-01255 Fatton, T. R.; Wilson, H. R; Mather, F. B and
Bootwalla, S. M. Strategies for Weighing
Broilers, Broiler Breeder Pullets, and Broiler
BreederHens I SampleSize and Individual v
Group Weighing. Journal of Applied Poultry
Research 1:88-94. 1992
R-01709 Fattori, T.R; Wilson, H. R.; Mather. F. B and
Bootwalla, S. M. Strategies for Weighing
Broilers, Broiler Breeder Pullers, and Broiler
Breeder Hens. 2. Scale Type, Weighing Time
and In-House Location. Journal of Applied
Poultry Research 1:95-103. 1992
R-02083 Harms, R. H. A Determination of the Order of
Limitation of Amino Acids in a Broiler Breeder
Diet. Poultry Science 1:001-002 1992
R-01670 Harms, R. H and Bootwalla, S. M. Performance
of Single Come omb White Leghorn Pulles as
Influenced by Niacin Supplementation from 0 to
6 Weeks of Age Journal of Poultry Science
71.771-774 1992

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research

86 Poultry Science

Harms, R. H. and Bootwalla, S. M. Research
Note: A Lack of Response to Pancothenic Acid
Supplementation by Turkey Poults Fed a Corn-
Soybean Meal Diet from Four to Twelve Weeks
of Age. Journal of Applied Poultry Research
1:19-21. 1992
Harms, R. H. and Hussein, S. M. Variations in
Yolk:Albumen Ratio in Hen Eggs From
Commercial Flocks. Journal of Applied Poultry
Research 2:166-170. 1993
Harms, R H. and Ivey, F. J. An Evaluation of
the Lysme Requirement and Lysme
Supplementation for Broiler Breeder Hens
Journal of Applied Poultry Research 1:308-314.
Harms, R. H. and Nelson, D. S. A Lack of
Response to Pantothenic Acid Supplementation
to a Corn-Soybean Meal Broiler Diet. Poultry
Science 71:1952-1954. 1992
Harms, R. H. and Russell, G. B. Optimizing
Egg Mass with Amino Acid Supplementation
of a Low Protein Diet. Poultry Science
72:1892-1896. 1993
Harms, R. H., Aboul-Ela, S. and Sloan, D. R.
Performance of Broiler Breeder Hens when
Subjected to Feed Removal for Various Period
of Time. Poultry Science 1:410-414. 1992
Hussein, S. M., Harms, R. H. and Janky, D M.
Evaluation of the Methodology Used in
Determination of Egg Component Ylelds.
Poultry Science 71373-377 1992
Hussem, S. M.; Harms, R. H. and Janky, D. M.
Factors Affecting the Yolk: Albumin Ratio in
Hen Eggs. 1. Effect of Age and Breed. Poultry
Science Journal 72:594-597. 1993
Janky, D. M.; Dukes, M. G. and Sams, A. R.
Research Note: The Effects of Post-Mortem
Restraint (Muscle Tensioning) on Tenderness of
Early-Harvested Broiler Breast Meat. Poultry
Science 71:574-576. 1992
Ouart, M. D.; Damron, B. L.; Martin, F. G.;
Christmas, R. B. and Sloan, D. R. Effect of
Poultry Fat and/or Yellow Grease on Broiler
Performance and Profitabiity. Poultry Science
71:821-828. 1992

R-02078 Ouart, M. D, Wilson, H. R. and Valazquez,
C. M. Effect of Brooder Attractant Lights on
Performance of Bobwhite Quail. Journal of
Applied Poultry Research 1:305-307. 1992
R-03015 Rossi, A F., Miles, R D.; Bootwala, S. M.;
Wilson, H. R. and Eldred, A. R. The Effect
of Feeding Two Sources of Boron on Broiler
Breeder Performance. Poultry Science
72:1931-1934. 1993
R-02030 Sams, A. R.; Janky, D. M. and Dukes, M. G.
Anatomical Location of Application Influences
the Tenderizing Effectiveness of Electrical
Stimulation of Broiler Carcasses. Poultry
Science 71:1564-1567. 1992
R-01627 Sloan, D. R. and Harms, R. H. Feed
Consumption Patterns in Pullets at the Onset
of Lay. Journal of Applied Poultry Research
1.164-166. 1992
R-01870 Sloan, D. R. and Harms, R. H. Research Note
Effect of Removing Salt from the Diet of
Broiler Breeder Hens. Poultry Science Journal
71:775-777. 1992
R-01610 Wilson, H. R. and Dugan, V. P. Hatchabilitv o
Bobwhite Quail Eggs as Affected by Incubator
and Hatcher Humidity. Journal of Applied
Poultry Research 1.180-182. 1992

Research Grants:
Harms R. H. Enzyme Supplementation of Laying Hen
Feed. ChemGen Corporation. 07/01/92-11/30/92
Harms R. H. Nutritional and Environmental Factors
Affecting Egg Shell Qualty. San Diego State
University Foundation. 09/01/91-08f31/93. $6,000
Miles R. D, The Relative Avalability Value of a Feed-
Grade Phosphate for Broiler Chicks Monomeros.
06/19/92-06/18/93. $5,000
Miles R. D. The Effect of Dietary Direct Fed Microbial
Supplementation on Performance Gastrointestinal.
Chr Hansen's Bio Systems. 06/04/92-01/01/93

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Soil and Water



UF/IFAS, USDA-CRIS Research Projects:

106 Newell Hall
Gainesville, FL 32611
Telephone: 904-392-1803
Fax: 904-392-3399



Chair & Prof, Soil


MARY E. COLLINS Prof., Pedology Genesis &
Classification & Grad. Coord.

Characterization, Classification, and
Mapping of Florida Sols

M. E. Collins
W. G. Harris

R. B. Brown

Application of Integrated Agrotech-nology
for Crop Production and Environmental
Quality Protection

Forest Soils

Prof, Soil Fertility

PAULA GALE Res. Asst Prof., Soil Biochemistry

Water Relations

of., Environmental

Prof., Soil Physics

EDWARD A. HANLON Assoc. Prof., Soil
Fertility & Mgt.


G Kidder
B L. McNeal
P. Nkedi-Kizza



Assoc. Prof., Soil Genesis

& Mineralogy
2,3 ARTHUR G. HORNSBY Prof, Soil Physics, Sod
Water Mgt.
1,2 DAVID H. HUBBELL Prof., Soil Microbiology
1,2 CLIFFORD T. JOHNSTON Assoc. Prof., Sol
1,2 ROBERT S. MANSELL Prof, Soil Physics Water
and Nutrient Movement
1,2,3 BRIAN L. McNEAL Prof., Soil Chemistry


Assoc. Prof., Soil Physics/

P. S. Rao
A G. Hornsby

Crop, Soil and Water Management and
Economics of Rice Grown on Organic Soils
of South Florda
K. R. Reddy

Variability of Soil Properties and its Effect on
Water Quality and Soil Management

P NkedP-Kzza


A. G. Homsby

Enhancing Beneficial Microorganisms in the

D. H. Hubbell


D M. Sylvia

Pesticides and Other Organics in Soils
and Their Potential for Groundwater

P. S. Rao

C. T. Johnston
P Nkedi-Kizza

A. G. Homsby
L.T Ou

2 LI TSE OU Assoc. Res. Scientist, Microbiology
1,2 HUGH L. POPENOE Prof. & Dr., Tropical
Agric., Soil Chem Trop Soils


Transport of Multiple Cations During Water
Flow in Acid Mineral Sols

R. S. Mansell

R. D Rhue

Sod Water Relations

d. Res. Prof.,

Soil Physics

Grad. Res. Prof., Soil

1,2 ROY D RHUE Assoc. Prof., Soi Physical




Prof., Soil Fertility Turf&

1,2 DAVID M SYLVIA Prof., Soil Microbiology


Res. Asst

Prof., Sodl Microbiology


P. Nkedt-Kizza

Chemistry and Bioavailability of Waste
Constituents in Soils
B. L. McNeal

Degradation of Telone II and Fenamiphos
in Subsoils and Groundwater, and by
L. T. Ou

Environmental and Genotypic Control of
Assimilate ate Aocan in Grain Crops
L C. Hammond

3 Extension 4 Other UF or Cooveratrni Agencv

I Resident Instruction 2 Research

88 Soil and Water Science



Restoration of Altered Lands
E. A Hanlon

Mycorrhizal Root Competiton in Forest Soids

D. M. Sylvia



N. B. Comerford

Phosphorus Retention Capacity of Wetland

P. M. Gale



K R. Reddy

Mineralogy and Charge Properties of Readily-
dispersible Fractions from Selected Soils and
W. G. Harris

Nutrition of Southern Pines

N. B. Comerford



E. L. Stone

Nutritional and Environmental Consider-
ations ofTurfgrass Fertility
J. B. Sartain

Organic Phosphorus Mineralization in

K. R. Reddy


C. T. Johnston

under Anoxic Conditions. Journal of
Environmental Quality 21:394-400. 1

Gaston, L. A.; Mansell, R. S. and Selim, H M.
Predicting Removal of Major Soil Catons and
Anions During Acid Infiltration: Model
Evaluation. Soil Science Society of America
56:944-950. 1992

R-01711 Gonzale, R. X.; Sarain, J. B. and Miller, W I
Cadmium Availability and Extractability as
Affected by the Presence of Waste Phosphatic
Clay. Journal of Environmental Quality
21:272-275. 1992


Hanlon, E. A. and Hochmuth, G J
Changes in P and K Fertilizer:


Recommendations for Tomato, Pepper,
Muskmelon and Snapbean i Florda.
Communications in Sod Science and Plant
Analysis 23:2651-2665. 1992
R-01991 Harris, W. G., Hollien, K. A.; Bates, S R. and
Acree, W. A. Dehydration of Hydroxy-
Interlayered Vermiculite as a Function of Time
and Temperature. Clays and Clay Materials
40:335-340. 1992


Modeling the Fate and Transport of
Nitrogen-Fertlizers, Carbaryl, and Bromide
Applied to Bahiagrass

P. Nkedi-Kizza

L. T. Ou


Refereed Publications:

R-02147 Aziz, T. and Sylvia, D M. Mycorrhizal
Amehoration of the Detrimental Effect of
Biodune on Plant Growth. Soil and Crop


Science Society 51:20-23.
Bellin, C. A. and Rao, P. S

Harris, W. G., Morrone, A A. and Coleman,
S. E. Occluded Mica in Hydroxy-Interlayered
Vermiculite Grams from a Highly-Weathered
Soil. Clays and Clay Minerals 40:32-39. 1992
Hineds, Z. R., Johnston, C. T and Erckson. C.
Chemisorption of Benzene on Cu-
montmortlonite as Characterized by FT-IR and

41:87-94. 1993


The Impact of

Bacterial Biomass on Contaminant Sorpton and
Transport m Subsurface Soils. Appled and
Environmental Microbiology 59:1833-1820.
R-01833 Fox, T R. and Comerford, N B. Acid
Phosphatase Activity and Phosphatase
Hydrolyzable Organic Phosphorus in Two
Forested Spodosols. Soil Biology and
Biochemistry 24:579-583. 1992


Gale, P. M.; Devai, I.; Reddy, K. R. and Graetz,
D. A. Denltrificatton Potential of Soils in

Constructed and Natural Wetlands. Ecological
Engieering 2:119-130. 1993
R-01591 Gale, P. M.; Reddy, K. R. and Graetz, D. A
Mineralization of Sediment Organic Matter

Clays and Clay Minerals

Hubbell, D. H. Screening for Inoculant-Qualiy
Strains of Rhuzobha. Methods in Plant Molecular
Biology and Biotechnology CRC Press
p. 321-332. 1993

R-01986 Ibrikcs, H.; Hanlon, E. A. and Rechcigl, J. E
Initial Calibration and Correlation of Inorganic-
P Soil Test Methods with a Bahiagrass Field
Trial. Communications in Soil Science and
Plant Analysis 23-2569-2579 1992


Jarstfer, A. G. and Sylvia, D. M Inoculation
Production and Inoculation Technologies of
Vesicular-Arbuscular Mycorrhizal Fungi. Soil

Microbial Technologies 13:349-377. 1992
R-03033 Johnston, C. T.; Sposito, G. and Earl. W. L.
Surface Spectroscopy of Environmental Particles
by Fourier-Transform Infrared and Nuclear
Magnetic Resonance Spectroscopy. IUPAC-
Partcles 112. 1993

1 Resident Instruction 2 Research

4 Other UF or Cooperating Agency

3 Extension

Soil and Water Science


Johnston, C. T., Sposito, G. and Erickson, C.
Vibrational Probe Studies of Water Interactions
with Montmorillonite. Clay and Clay Minerals
40:722-730. 1992

R-02000 Johnston, C. T.; Tipon, T.; Trabue, S. L.;
Enckson, C. and Stone, D. A. Vapor Phase
Sorption of P-Xylene on Co- and Cu-
Exchanged SAz- MontmorilonIte.
Environmental Science and Technology
26:382-390. 1992
R-01750 Jorge, J. A; Mansell, R. S., Rhoads, F. M;
Bloom, S. A. and Hammond, L. C. Compaction
of a Fallow Sandy Loam Sod by Tractor Tires.
Soil Science 153:322-330. 1992
R-02110 Lee, L S.; Belln, C. A.; Pina, R. and Rao, P S
Cosolvent and pH Effects on Sorption of
Organic Acids in Methanol-Water
Environmental Science and Technology
27:165-171. 1992
R-02372 Lee, L. S.; Rao, P. S. and Okuda, I. Equilibrium
Partitioning of Polynuclear Aromatic
Hydrocarbons from Coal Tar into Water
Environmental Science and Technology
26:2104-2110, 1992


Mansell, R. S.; Bloom, S. A. and Bond, W J.
A Tool for Evaluating a Need for Variable
Selectivities in Cation Transport in Soil. Water
Resources Research 29 6:1855-1858. 1993

R-01751 Mansell, R. S.; Bloom, S A; Burgoa, B. A. and
Nkedi-Kizza, P. Experimental and Simulated P
Transport in Soil Using a Multireacnon Model
Sol Science 153 185-194. 1992
R-02331 Mansell, R. S.; Bond, W. J. and Bond, S A.
Simultaneous Transport of Three Cations
During Transient, Unsaturated Water Flow in
Soils. Soil Science Society of America 57:3-9


Moore, Jr., P. A., Reddy, K. R and Graetz, D. A.
Nutrient Transformations in Sediments as
Influenced by Oxygen Supply. Journal of
Environmental Quality 21.387-393. 1992

R-01281 Nkedi-Kzza, P. and Owusu-Yaw, J.
Simultaneous HPLC Determination of NO,
NO, and Organic Pesticides n Soil Solution
using a Multidimensional Column with UV
Detection. Journal of Environmental Science
and Health A27:245-259 1992


O'Donnell, J. J.; Sylvia, D. M ; Pitman, W D
and Rechcigl, J. E. Inoculation of Vigna parked
with Mycorrhizal Fungi in a Pomona Fine Sand.
Tropical Grasslands 26:120-129. 1992

R-01273 Ou, L. T.; Nkedi-Kizza, P; Ciar, J. L. and
Snyder, G. J. Microbial Degradation of Baygon
in Turfgrass Sod. Journal of Environmental
Quality 27:545-564. 1992
R-01447 Pennell, K. D.; Rhue, R. D. and Horsby, A. G
Competitive Adsorption of p-Xlene and Water
Vapors on Ca-, Na-, and Li- Saturated Kaolinte.
Journal of Environmental Quality 21:419-426
R-01738 Pennell, K D; Rhue, R. D.; Rao, P. S. and
Johnston, C. T. Vapor-Phase Sorption of P-
Xylene and Water on Soils and Clay Minerals
Environmental Science and Technology
26:756-763. 1992
R-01887 Polglase, P. J., Comerford, N. B. and Jokela, E. J.
Leaching of Inorganic P from Litter in Southern
Pines Soil Science Society of America
56:573-577. 1992


Polglase, P. J.,Comerford, N. B. and Jokela, E. J.
Minerahzation of Nitrogen and Phosphorus from
Soil Organic Matter in Southern Pine Stands.
Soil Science Society of America 56:921-927.

R-02121 Rezaian, S; Hanlon, E. A., Sanchez, C. A. and
Cornel, J A. Optimization of Solution Soil
Ratio and Shaking Times of the Mehlich-III
Soil-Test on Histosols. Communication in Soil
Science and Plant Analysis 23.2247-2259. 1992
R-01737 Rhue, R. D. Coupled Diffusion of Exchangeable
Cations in Soil. Soil Science Society of
Amenca 56:683-689. 1992
R-02292 Sartain,J.B Interrelationships among
Turfgrasses, Clipping Recycling, Thatch and
Applied Ca, Mg, and K Agronomy Journal
85:40-43. 1992
R-02651 Smethurst, P J. and Comerford, N. B Potential
for Leaching of K and P from Pine and Grass
Roots. Communications in Sod and Plant
Analysis 24:1577-1581 1993


Smethurst, P. J.; Comerford, N B and Neary,
D. G. Predicting the Effects of Weeds on K and
P Uptake by Young Slash Pine on a Spodosol.
Forest Ecology and Management 60.15-26. 1993

R-02973 Smethurst, P. J.; Comerford, N
D. G. Weed Effects on Early K
and Growth of Slash Pine on a
Ecology and Management 60:1

B. and Neary,
and P Nutrition
Spodosol Forest
5-26. 1993

R-02384 Stone, E. L.; Harris, W G ; Brown, R B and
Kuehl, R J Carbon Storage in Florida
Spodosols. Soil Science Society of American
Journal 57179-182 1993

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

90 Soil and Water Science

Sylvia, D. M. and Jarstfer, A G. Sheared-Root
Inocula of Vesicular-Arbuscular Mycorrhizal
Fungi. Applied and Environmental
Microbiology 58:229-232. 1992
Sylvia, D. M.; Hammond, L. C.; Bennett, J. M.
and Haas, J. H. Field Response of Water-
Stressed Maize. Agronomy Journal 85 2'193-
198. 1993
Sylvia, D. M.; Jarsfer, A. G. and Vosatka, M.
Comparison of VAM Species and Inocula
Formulations in a Commercial Nursery and
Diverse Florida Beaches. Biology and Fertility of
Soils 16:139-144. 1993
Sylvia, D. M.; Wilson, D. 0; Graham, J. H.;
Maddox, J. J.; Millner, P.; Morton, J. B Skipper,
H. D.; Wright, S P. and Jarstfer, A. G. Effective
VA Mycorrhtzal Fungi for Soils of the
Southeastern United States. Soil Biology and
Biochemistry 25:705-713. 1993
Woodburn, K. B.; Rao, P. S. and Delfino, J. J.
Energetics of Hydrophobic Solute Retention on
Reversed-Phase Chromatography Supports:
Effects of Solute, Solvent and Sorbent
Properties. Chromatographia 33:402-413. 1992
Woodburn, K; Rao, B.; Rao, P. S. and Delfno, J J.
Retention of Hydrophobic Solute on Reversed-
Phase Liquid Chromatography Supports:
Correlation with Solute Molecular Topology
and Hydrophobicity Indices. Chemosphere
24:1037-1046. 1992
Wu, C. G. and Sylvia, D. M. Spore Ontogeny of
Glomus Globiferum (Glomaceae Zygomycetes).
Mycologia 85:317-322. 1993

Non-Refereed Publications:

N-00671 Sartain, J B. Natural Organic Slow-Release
N Sources for Turfgrass. Florida State Horticul-
tural Society Proceedings 105:224-226. 1992
N-00598 Sartam, J. B. Phosphorus and Zinc Influence on
Bermudagrass Growth. Soil and Crop Science
Society 51:39-42. 1992
N-00529 Yuan, T. L Three Potential Amendments for
Better Fertilizer Utilization in Sandy Soils. Soil
and Crop Science Society 51:49-55. 1992

Research Grants:
Brown R B. SSSA Membership Survey: Compilation and
Analysis. Soil Science Society of Amenca. 09/01/92-
12/31/92. $3,000

Brown R. B. Using Soil Maps, Soil Characterization
Data, and Soil Samples in the Mapping of Radon
Potentials in Florida. Florida Department of
Community Affairs. 12/10/92-11/30/93. $35,000
Collins M. E. Archeological and Historic Remote Sensing
Investigations, Charles Pickney National Historic
United States Department of Interior. 09/18/92-
09/30/93. $4,945
Collins M. E. GPR Investigations at the TARS site,
Horseshoe Beach, Florida. TCOM. 11/18/92-
11/17/93. $5,000
Collins M. E. Determination of Soil Organic Matter of
Estuarine Deposits. Environmental Science &
Engineering (ESE). 02/15/92-02/14/93. $470
Collns M. E Total Phosphorus Analysis of Soils at San
Luis Archaeological Site. FI Dept of State. 02/04/93-
06/30/93. $500
Collins M. E. GPR Investigations of TARS site Bahamas
Loral Aerospace Services. 04/10/93-04/09/94
Comerford N. B. Phosphorus Transformation and
Movements Along an Uplands/Wetlands
Continuum. USDA Forest Service. 09/01/92-
12/31/95 $100,000
Graet D. A. Land Application of Inorganic & Organic
Soil Amendments. Florida Department of
Environmental Regulation. 06/30/92-06/30/94.
Graetz D. A. Research Water Column Sediment Nutrient
Interacnons as a Function of Hydrology. St. Johns
River Water Management Distrct. 11/18/92-
12/31/95. $30,000
Harris W. G. Mineralogy & Selected Chemical Properties
of Aquifer Materials from Peninsular Florida. United
States Department of Interior 12/09/92-02/15/93.
Homsby A. G. Water and Chemical Movement Through
Soils University of Arizona. 12/01/92-11/30/93.
Homsby A. G. Environmental Fate & Efficacy of Methyl
Bromide Fumigant in Florida. University of
Califomia-Riverside. 09/01/92-06/30/94. $120,000
Mansell R. S. Fate & Transport of Tetraethlyene &
Associated Weathering Products in Subsurface.
Battelle Labs. 11/08/90-04/30/94. $133,908
McNeal B. L. Land Application of Dewatered Domestic
Wastewater Sludge on Citrus Palm Beach Co
Sold&water Dist. 10/19/89-09/30/93. $21,840

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Soil and Water Science 91

Ou L.T. Analysis of the Potential for Degradation of
Carbofuran in Soil Profiles. Washington State
University 09/01/92-08/31/95. $77,975
Rao P. S. Factors Limiting Biomediation of Tar
Contaminated Soils From MGP Sites. Remediation
Technologies, Inc. 07/01/92-12/31/93. $167,500
Rao P. S Remediatton of Contaminated Sods By Solvent
Flushing. Environmental Protection Agency
10/01/92-03/31/94. $51,215

Rao P. S.

Environment Partitioning and Releases of

Organics From Utility Waste Disposal Sites.
University of Texas at Austin. 01/01/93-12/31/93.
Reddy K. R. Organic Phosphorus Mineraization in
Wetlands. USDA-CSRS. 09/15/92-09/30/95.
Reddy K. R. Influence of Agriculture on Biogeochemical,
Physiological Processes in Florida Everglades.
Louisiana State University. 09/01/92-08/31/93
Reddy K. R. Orange County ESAWWTF Phase III
Experimental Exemption System-Year V. Camp
Dresser McKee. 10/01/92-09/30/93. $50,000
Reddy K. R. Watershed Phosphorus Synthesis Project -
Contract No. 3333. South Florida Water
Management District 01/01/93-10/08/93. $50,000
Reddy K. R. Nutrient Storage & Movement in the Lake
Apopka Marsh Project Amendment No. 1. St.
Johns River Water Management District 04/10/91-
07/10/94. $1,540
Reddy K. R. Knight's Farm Nutrient Study. South Florida
Water Management District. 02/01/90-06/30/93
Reddy K. R. Flux of Methane From Natural Wetlands.
Experimental Study and Modeling Analysis. Tulane
University 01/01/92-10/31/93. $48,993

Sartain J. B Water & Nutrient Uptake Efficacy of
Turfgrass as Influenced by Calcium Montmorillonte
AME. Mid-Fi Mining Co. 06/01/92-05/31/93. $8,700

Sartain J. B.

Uptake Efficacy of Polymer Coated N

Sources. Pursell Ind. 06/01/92-05/31/93. $4500
Sartain J. B. Potassium Leaching and Bermugrass
Response. Foundation for Agronomic Research
(FAR). 08/01/92-07/31/93. $10,000

Sartain J. B. Turfgrass Response to Poly-S. 0. M

Scott &

Sons Company. 01/01/92-09/30/93. $2,000
Sartain J. B. Establishing Vegetative Cover on
Phosphogypsum. Fla. Institute of Phosphate Reseach
08/27/92-08/26/93 $20,032
Sartain J. B Evaluation of Greenleaf as a Turfgrass
Fertilizer. Selvig Corporation. 02/01/93-10/30/93.

Sartamin. B.

Retentive and Mobile Characteristics of

Ca(No3)2 Nitrogen. Hydro Agri. 03/15/93-03/14/94.
Sartain J. B. Comparative Evaluation of Miracle Grow
Products. Miracle Grow Products, Inc. 03/01/93-
11/30/93. $5,280
SartainJ. B. Turfgrass Response to Natural and Synthetic
N Fertilizers. Omnicology, Inc. 03/01/93-12/31/93.
Sartain J. B. Turfgrass Studies Involving Nitroform
Products. Nor AM Products. 03/01/93-12/31/93.

Sartain J

B. Effects of N and K Sources on Growth of

Turfgrass. Florida Turfgrass Research Foundation
10/01/91-09/30/93. $10,000

Sylvia D. M.

Serological Markers of Mycorrhizal Fungi for

In Site Monitoring of Fungal Competence. National
Science Foundation. 09/15/92-08/31/93. $10,000
Sylvia D M. Mycorrhizal Root Competition for Nutrients
in Infertile Forest Soils. National Science
Foundation. 01/15/91-12/31/92. $103,118

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research


Gainesville, FL


An Interactive Simulation-Based Environ
ment for Experimental Design

K. M. Portier


Telephone: 904-392-1941
Fax: 904-392-5175

F. G. Martin

Refereed Publications:


Regression Analysis

Chair & Prof.


j. Prof., Least Squares

Prof., Design of Expers-

ments, Experiments With Mixtures

Statistical Computings

Prof., Theory of Inference,

FRANK G. MARTIN Prof., Design Anly. Expts.

mental Statistics

Assoc. Prof.. Environ.

UF/IFAS, USDA-CRIS Research Projects:

STA02820 Experimental Designs and Models for use in
Agricultural Mixture Experiments
J. A. Cornell


Cornell, J. A. and W. F. Smith, Jr. Biplot
Displays for Looking at Multiple Response Data
in Mixture Experiments. Technometrcs
35(4):337-350 1993

Research Grants:

Littell R. C.

Short Course on SAS for Analysis of Wildlife

Data. Florida Game & Fresh Water Fish
Commission. 015-01592-06/1493. $5,000

Randles R. H.

Statistical Support for USDA. USDA

Agricultural Research Service. 10/01/91-09/30/93
Randles R. H. Department of Statistics IFAS Donors
Account. Misc Donors. 11/23/92-12/31/99. $1,250

Statistical Models and Analyses for Repeated
Measures Data
R. C. Littell

3 Extension 4 Other UF or Cooperating Agency

102 Grtffin-Floyd Hall

I Resident Instruction Z Research

Wildlife and Range Sciences

Chair & Prof., Wildlife


118 Newins-Zegler Hall
Gainesville, FL 32611
Telephone: 904-392-4851
Fax: 904-392-1707

1,2 LYN C. BRANCH Asst. P

Landscape Design
and Sustainable Dev.

WILEY M. KITCHENS, Adj. Assoc. Prof.,
Wetland Systems


Prof., Wildlife Ecology &

Asst. Prof., Urban

FRANKLIN H. PERCIVAL, Adj. Assoc. Prof.,
Wetland Systems

Wildlife Management
Ecology & Mgt.

Asst Prof., Urban

Assoc. Sl., Wildlife

Assoc. Prof., Range

UF/IFAS, USDA-CRIS Research Projects:

Refereed Publications:

R-01015 Barker, R.J. The Effect of Heterogeneous
Survival on Bird Banding Model Confidence
Interval Coverage Rates. Journal of Wildhfe
Management 56:111-116. 1992


rof, Wildlife Ecology
dway Prof., Ecosystem

Prof., Wildlife

Asst, Prof., Conservation


Branch, L. C.; Villarreal, D. and Fowler, G.
Recruitment, Dispersal and Group Fusion in a
Declining Population of the Vizcacha, a Social
Chinchillid. Journal of Mammalogy 74:9-20.
Brugger, K. E.; Labisky, R F. and Daneke, D. E.
Roost Dynamics at Millers Lake, Louisiana
Implications for Damage Control in Rice.

Journal of Wildlife Management 56 393-398.
R-01731 Dwyer, N. C. and Tanner, G W Nesting
Success in Florida Sandhdl Cranes. Wilson
Bulletin 104:22-31. 1992
R-01871 Fitzgerald, S. M. and Tanner, G. W Avian
Community Response to Fire and Mechanical
Shrub Control in South Florida. Journal of
Range Management 45 396-400. 1992
R-01612 Jacobson, S. K. and Robles, R. Ecorourism,
Sustainable Development, and Conservation
Education: Development of a Tour Guide
Trainig Program in Tortuguero, Costa Rica.
Environmental Management 16-701-713 1992
R-02491 Jodice, P. G. and Humphrey, S. R. Activity and
Diet of An Urban Population of Big Cypress Fox


Journal of Wildlife Management
,2. 1992


Wildlife and Growth Management in Florida

F.J. Mazzotti



J. M. Schaefer

Relationships Between Human Population
Growth and Wildlife Species Diversity in
Hardwood Hammocks


J. M. Schaefer



Impact of Range Management Practices on
Wildlife Habitat Components and Selected
Wildlife Species
G. W. Tanner

Population Dynamics and Local Extincton of
Naturally Isolated Wildlife Populations in
Managed Landscapes
L. C, Branch



Kinnaird, M. F. Competition for a Forest Palm.
Use of Phoeix recinata by Human and Non-
Human Primates. Conservation Biology
6:101-107. 1992
Klein, M. L. Refuge Visitors: How Different
Human Behavior Patterns Affect Foraging
Waterblrds. Wildlife Society Bulletin 21:31-39.
Marion, W. R., Quincy, P A., Cutlip, Jr, C G
and Wilcox J. R. Bald Eagles Successfully Use
Artificial Nest on Man-Made Platform in
Florida. The Wilson Bulletin 26:266. 1992
Medellin, R. A.; Cancino, G., Clemente, A. and
Guerrero, R. 0. Noteworthy Records of Three
Mammals from Mexico. The Southwestern
Naturalist 37 427-429, 1992

3 Extension 4 Other UF or Cooperating Agency

I Resident Instruction 2 Research

94 Wildlife and Range Sciences

R-01592 Schaefer, J. M. and Brown, M. T. Guidelines for
Designing Ripaian Wildlife Corridors. Rivers
Studies in the Science, Environmental Policy
and Law of Flow 3:14-26. 1992
R-01318 Smith, R.J. and Schaefer, J. M Effects of
Urbanization on Avian Communities
Associated with Streamstde Habitats. Wilson
Bulletin 104:732-738. 1992
R-01729 Wood, P. B. and Collopy, M. W. Bald Eagle
Conservation and Reintroduction- Evaluation of
an Egg-Removal Program on the Productivity of
Bald Eagles in North Florida. Conservation
Biology 57:1-9. 1993

Research Grants:
Bolten A. B. Effects of Artificial Lighting on Nesting
Adult and Hachling Sea Turtles. United States
Department of Interior. 03/17/89-05/31/94. $19,741
Bolten A. B IFAS as Co-PI: Immunological Competence
in the Green Turtle and its Relationship to the
United States Department of Interior. 06/19/92-
05/31/97. $714
Bolten A. B. IFAS as Co-PI: Distribution, Population
Structure, and Exploration of Sea Turtles in the
United States Department of Interior. 09/01/88-
08/31/94. $2,033
Bolten A. B. Assessment of the Behavior of Sea Turtles at
Cape Canaveral, Florida. US Army. 01/27/93-
01/26/94. $8,734
Bolten A. B. Optimizing Ecotourism on Sea Turtle
Nesting Beaches. United States Department of
Commerce. 04/01/93-03/31/95. $3,328
Bolten A. B. IFAS as Co-PI: Sea Turtle Nesting Biology
on Blackbeard Island National Wildlife Refuge.
United States Department of Interior. 06/01/93-
12/31/97. $1,150
Bolten A. B. IFAS as Co-PI: Immunological Competence
in the Green Turtle and Its Relationship to the
Deve United States Department of Interior.
06/19/92-05/31/97. $1,525
Frederick P. C. Wading Bird Nesting Success Studies in
the Water Conservation Areas of the Everglades.
United States Department of Interior. 02/22/93
12/31/93. $39,405
Frederick P. C. Wading Bid Nesting Success Studies
South Florida Water Management District. 04/09/92-
07/09/93. $9,000
Harris L. D. An Analysis of Okefenokee-Osceola Regional
Biodiversity Strategy. Occidental Chemical Co.
92-24/92-08/23/93. $16,140

Humphrey S. R. Re-establishment of the Anastasia Beach
Mouse United States Department of Interior.
08/05/92-10/31/93. $7,859
Jacobson S. K. An Ecosystem Approach to Public
Education and Information at Eglin Air Force Base.
United States Department of Interior. 01/11/93-
03/15/95. $13,725
Jacobson S. K. A Park-Community Outreach Program for
Natural Resource Conservation Wildlife
Conservation International. 02/01/93-12/31/93
Kitchens W. M. Effects of Hydrologic Alterations on the
Okefenokee Swamp. United States Department of
Interior. 06/01/91-07/01/94 $177,258
Kitchens W M. Estimation and Environmental Correlates
of Survival and Dispersal of Snail Kites in Flonda
United States Department of Interior 09/19/91-
02/28/95. $45,750
Kitchens W. M. Estimation and Environmental Correlates
of Survival and Dispersal of Snail Kites in Florida
United States Department of Interior 09/19/91-
02/28/95. $60,000
Kitchens W. M. Biological Diversity in Florida: An
Evaluation of Potential Species i Relation To
Habitat and Existing Reserves. United States
Department of Interior. 08/05/92-09/30/94 $206,585
Kitchens W M. Methods for Determining Change in
Wetland Habitats Florida. United States
Department of Interior. 03/03/92-09/30/94 $5,000
Kitchens W. M. Tidal Marsh Monitoring in Savannah
National Wildlife Refuge. United States Department
of Interior. 05/04/93-01/30/94. $17,497
Kitchens W. M. Graduate Research in Fish and Game
Commission. Florida Game & Fresh Water Fish
Commission. 07/01/79-06/30/99. $87,757
Kitchens W M. Graduate Research in Fish and Wildhfe
Management. Florida Game & Fresh Water Fish
Commission. 07/01/91-06/30/94 $40,000
Labisky R F. Behavioral Responses of White-Taied Deer
Along the Spatial Transition Between Hunted and
Non-Hunted Populations. United States Department
of Interior. 05/11/93-03/31/97 $39,002
Mazzotti F. K. Effects of Draw-Down on Nesting of
Alligators in Par Pond. University of Georgia.
04/01/92-09/30/92. $7,927
Mazzotti F. J. Inventorying Wildlife Resources of the
Broward County Bond Issue Environmentally
Sensitive Lands. Broward County Board of
Commissioners (Ag Division). 10/01/92-09/01/93.

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

Wildlife and Range Sciences

Mazzotti F. J Monitoring American Crocodiles at the
Turkey Point Power Plant Site FI Power & Light
(FPL). 01/01/92-12/31/93. $5,000
Mclvor C. C. An Assessment of Fish Responses to
Hydrology Habitat Complexity and History of Marsh
Management. St. Johns River Water Management
District. 07/23/92-07/22/94. $29,994
Mclvor C. C. Coral Reef Montoring in Support of
Management, Saba Marine Park, Netherlands
Antilles. United States Department of Interior.
09/01/90-09/30/94. $10,000
Mclvor C. C. Ecology of Fish and Microinvertebrate
Populations in Mangrove Habitat in South Florida.
National Audubon Society. 09/01/90-12/31/93.
Myer K. D. Communal Roosts of the American Swallow-
Tailed Kite m Florida Habitat Associations, Crit.
Florida Game & Fresh Water Fish Commission.
02/27/92-06/30/93. $14,018
Percival H. F. IFAS as Co-PI: Status Monitoring and
Experimental Re-introduction of Endangered Schaus
Swallowtail. United States Department of Interior.
04/29/91-10/31/93. $2,502
Percival H. F. Distribution and Status of Red-Cockaded
Woodpecker Colonies at Eglin AFB Florida. United
States Department of Interior. 01/17/90-10/30/93.
Percival H. F. Estimation Models for Animal Population
Dynamics. United States Department of Interior.
08/05/92-12/31/93. $30,000
Percival H. L. Workshop on Florida Manatee (Tnchechus
manatus lauroscns). United States Department of
Interior.09/19/91-10/31/93. $5,964
Percival H. F. Land Management Practices in the
Montaine Region of Puerto Rico: Impact on
Avifauna. United States Department of Interior.
08101/8812/31/95. $6,000
Percival H F. Red-Cockaded Woodpecker Demography,
Habitat Use Cavity Competition, and Ecological
Corre. United States Department of Interior.
08/27/92-03/15/96. $59,475
Percival H. F. Distribution and Status of Red-Cockaded
Woodpecker Colonies at Eglin AFB, Florida. United
States Department of Interior. 01/17/90-10/30/93.
Percival H. F. IFAS as Co-Pl: Captive Propagation and
Restoration Ecology of the Endangered Stock Island.
United States Department of Interior 11/05/91-
10/31/93. $1,042

Percival H. F Estimation Models for Animal Population
Dynamics. United States Department of Interior.
08/05/92-12/31/93. $15,000
Percival H. F. IFAS as Co-PI: Captive Maintenance,
Propagation, and Restoration of the Endangered
Stock Island Tree Snail Following Hurricane
Andrew. United States Department of Interior.
09/28/92-10131/95. $49,450
Percival H. F. EggViability, Sexual Development,
Hatching Viability and Growth in Alligators From
Lake. St. Johns River Water Management District
09/14/92-02/01/93. $9,500
Percival H. F. Aerophotogrammetry and Manatee Size
Distribution: A Feasibility Study. United States
Department of Interior. 01/01/93-06/01/93. $3,000
Percival H F Mercury Concentrations in Blood &
Feathers of Nestling Florida Bald Eagles. United
States Department of Interior. 02/18/93-09/30/93.
Percival H. F. Use of Aerial Survey and
Aerophotogrammetry Methods in Monitoring
Manatee Populations. United States Department of
Interior. 06/04/93-01/31/94. $9,000
Percival H. F. Distribution and Status of Red-Cockaded
Woodpecker Colonies at Eglin Air Force Base.
United States Department of Interior. 01/17/90-
10/30/93. $160,000
Percival H. F. IFAS as Co-PI: Captive Propagation and
Habitat Reintroduction for the Schaus Swallowtal
Following Hurricane Andrew United States
Department of Interior. 04/12/93-09/30/94 $53,072
Tanner G. W. Population Ecology of Bartram's Ixla
(Calydorea Coelesmna) (Bartr.) Foster. United States
Department of Interior 08/05/9210/01/94. $33690
Tanner G. W Wddfe Corridor Advisory Panel. Florida
Department of Natural Resources. 07/01/92-
12/31/92 $12,000
Tanner G. W. Understory Response to Longleaf Pine
Sandhill Restoration Techniques. United States
Department of Interior 06/18/93-03/15/96. $23,000
Tanner G. W. Effect of Cultural Treatments, Overstory
Density, and Site on the Growth Rate of Under-
Planted Wiregrass in Longleaf Stands on the
Savannah River Site USDA Forest Service.
06/14/93-06/14/94. $10,000
Werner P. A. A Cooperative Urbane Wildlife
Management Program: A Component of the Florida
Nongame Wildlife Program Florida Game & Fresh
Water Fish Commission. 01/06/86-06/30/93.

3 Extension 4 Other UF or Coooeratin Aponcu

1 Resident Instructton 2 Research

96 College of Veterinary Medicine

P O. Box 100125
Gaiesville, FL 32610-0125
Telephone: 904-392-4700 x5000
Fax: 904-392-8351


1,2,3 JOHN B. DAME Assoc. Prof., Molecular Biology
1,2,3 JOHN R. DANKERT Asst. Prof., Membrane
Biology and Biochemistry
1,2,3 DONALD J.FORRESTR Prof., Wildlife


Dean & Prof.,

Epidemiology, Virology
2,3 NANCY M. BAILEY Assoc. Dean for Stud. &
Instr., Educational Policy Studies
2,3 RONALD R. GRONWALL Ex. Assoc. Dean &
Prof., Pharmacokmencs
2,3 PHILIP C. KOSCH Assoc. Dean Res. & Grad.
Stud., Respiratory Neonatal Physiology

P. O. Box 100145
Gaiesville, FL 32610-0145
Telephone: 904-392-4700 x3900
Fax: 904-392-5426


Prof. & Chair,

Pulmonary Pathology
1,2,3 CLAUS D. BUERGELT Prof. and Assoc. Chair,
Bovine Parauberculosis
1,2,3 PAMELA GINN Asst. Prof., Comparative


Assoc. Prof., Poultry


Prorf, Comparative


P O. Box 100880
Gainesville, FL 32610-0137
Telephone: 904-392-4700 x5800
Fax- 904-392-9704

Prof. & Acting

Chair., Parasitology, Canine Heartworm



Asst. Prof., Molecular

Prof, Molecular Biology;

Trop Disease
1,2,3 MARY B. BROWN Assoc. Prof., Mycoplasmal

Zoonoses Tropical Diseases

Prof, Epidemiology,

Assoc. Prof, Veterinary

1,2,3 E. PAULJ. GIBBS Prof., Virology


Prof., Parasitology

JOHN T. NEILSON Asst. Dean (IFAS) & Prof.,
Parasite Immunity



Prof., Brucellosis
NS Asst Prof, Molecular


P.O. Box 100136
Gamesville, FL 32610-0136
Telephone: 904-392-4700 x5600
Fax: 904-392-8289


Chair. & Chief of Staff,

Prof., Disease Calves, Cattle Reproduction
1,2,3 ATWOOD C. ASBURY Appleton Clin Prof,
Equine Reproduction
1,2,3 LOUIS F. ARCHBALD Prof., Bovine and Equine

1,2,3 C. L. (DAVID) CHEN

Prof, Antimicrobial

Asst. Prof., Avian Diseases
Prof. & Assoc. Chair,

Repro. Physto. Neuroendocrnology
1,2,3 PATRIC T. COLAHAN Assoc. Prof, & Service
Chief, Orthopedics Biomechanics
1,2,3 ARTHUR G. DONOVAN Assoc. Prof. & Service
Chief, Bovine Neonatology and Dairy Herd Health
and Production Control
1,2,3 MAARTEN DROST Prof., Bovine and Bubalne
1,2 RUTH T. FRANCIS-FLOYD Assoc. Prof,


Ast. Prof, Equine

Assoc. Prof, Assoc. Prof,

Equine and Companion Animals (Goats &
1,2,3 ROLF E. LARSON Assoc. Prof., Andrology


Assoc. Prof, Mare

Infertile, Perinatal Period & Fetal Stress

3 Extension 4 Other UF or Cooperating Agency

1 Resident Instruction 2 Research

College of Veterinary Medicine

Asst Prof., Large Animal Medicine

1,23 ROBERT J. MACKAY Assoc. Prof., Large Animal
Neurology Immunology
1,2,3 JOHN B. MADISON Asst. Prof., Large Animal
1,2,3 ALFRED M. MERRITT 11 Prof. & Service Chief,
Large Animal Gastroenterology and Internal Med.


Asst. Prof., Anesthesiology

1,2,3 OWEN D. RAE Asst. Prof., Food Animal Beef
Reproduction and Herd Health
1,2,3 EDJ. RICHEY Assoc. Prof., Beef Cattle Extension
1,2 CARLOS RISCO Asst. Prof, Dairy Research


Assoc. Prof, Dairy Research
E Prof., Utero-Ovaran

Relationships in Improving Fertility in Dogs, Cats

& Exotic Carnivore
1,2,3 GUY G. C. WATNEY

Asst. Prof, Anesthesiology



Prof., Bone

Pathology in Estrogen Deficiency and Space light


P. O Box 100126
Ganesville, FL 326100126
Telephone: 904-392-4700 x5700
Fax: 904-392-8219
Prof., Orthopedic Surgery
Diagnostic Radiology


Chair & Chief of Staff,

Assoc. Chair & Prof.,

Asst Prof., Small Animal

KARIN M. BEALE Asst. Prof, Dermatology

Flaps Hyperrrophic

Lssoc. Prof, Periosteum Skin

Assoc. Prof., Ophthamology

P. O Box 100144
Gainesville, FL 32610-0144
Telephone: 904-392-4700 x3800
Fax: 904-392-5145
1,2,3 DARYL D. BUSS Chair &

1,2,3 COLIN F. BURROWS Prof, GI Mobility in
Health & Disease Canine GI Function
1,23 PAUL T. CARDEILHAC Prof., Alligator

Prof., Cardiovascular


1,2,3 ROGER M

oc. Prof.,


Prof. & Dir., Neurology
Assoc. Prof., Basic

Mechanisms of Platelet Function & Neural Degen


Asst Prof., Clinical

1,2,3 PAUL W. DAVENPORT Assoc. Prof., Neuro-
physiological Control of Breathing
2,3 RAYMOND D. HARBISON Prof. Interdiscipli-

nary Toxicology

Comparative Hematology

Prof. & Assoc Chair,

Assoc Prof.,

Neuroanatomy Neurophysiology
1,2,3 ROSE E. RASKIN Assoc. Prof., Clinical
Pathology Immunopathology
1,2,3 ROGER L. REEP Assoc. Prof., Neuranatomy


Assoc. Prof., Toxicology

Asst Prof., Immunopathol-

ogy of Lab & Wildlife Medicine
1,2,3 GARY W. ELLISON Assoc. Prof., Asst. Chair,
Small Animal Soft Tissue Surgery
1,2,3 LESLIE E. FOX Asst. Prof, Oncology
1,2,3 KIRK N. GELATT Prof, Congenital Ocular
Defects Glaucoma
1,2,3 GLENWOOD G. GUM Asst. Prof., Glaucoma/

Fiber Electromyography
1,2,3 ROBERT R. KING Asst.
Internal Medicine

Clinical Asst. Prof., SgL

SProf., Zoo Animal

Prof., Small Animal

1,2,3 SUSAN S. SUAREZ Assoc Prof., Reproductive

Tissue Residues


Assoc. Prof., Toxicology

1,2,3 GAIL A. KUNKLE Assoc. Prof., Dermatology


Asst Prof, Comea/Retna
) Prof., Primate Medicine


Assoc. Prof.,


Prof, Pharmacoknetics


Assoc. Prof, Orthopedics

3 Extension 4 Other UF or Cooperating Agency


1 Resident Instruction 2 Research