Institute of Food and Agricultural Sciences
Dr. Harold W. Browning, Center Director
Citrus Research & Education Center
700 Experiment Station Road
Lake Alfred, FL 33850-2299
Tel (863) 956-1151
Fax (863) 9564631
Ci trus R r n ud In
In This Issue
LAPD Offers Assistance.,
Employees of the Year
Citrus Production Posters
For S ale .............. ................. 2
UF/IFAS Display ........................ 2
CREC Hosts German Students .. 2
Dr. Muhammrd Farooq 3
Marlene Rosales ................... 3
Ahmad Omar.............................. 4
Linda M urphy .....................,,.. 4
News Around CREC
Congratulations ................. 5
Welcome, Farewell ...... ... 5
New Roof ......................... 6
Manuscripts ......................... 6
Citrus Canker Info................. 6
Citrus Processors Day Program
Local Residents On Alert For Hate Crimes
LAPD Offers Assistance To CREC Personnel
Scargent Curt Bradley of the
Lake Alfred Police Department
(LAPD) offered assistance to
CREC personnel and their families
who may be the target of hate
crimes because of their ethnic
origin or religion. "I will not
tolerate hate crimes in my city,"
Sgt Brdley told u'er40 CREC
personnel on September 26, He
Sgt. Bradley of the Lake
Alfred Police Department.
said that the department would
increase patrol around resi-
dences of potential targets and
advised everyone to avoid
potentially dangerous or
Sgt. BradleN advised person-
nel to have a "personal safety
See Saf'i t Precautions
It's time to start thinking about nominees
for CREC Employee i of the Year. UF and
FDOC emnplow ec: in USPS. Career Service
and A & P (Administrative and Professional)
positions are eligible. Faculty. graduate
students, post-docs and visiting scientists
are not eligible.
Candidates must be nominated by a
super ,isor (faculty member or department
head), but staff participation is encouraged
in selecting nominees. According to Dr.
Browning, some areas have not had any
nominees for several years. Awards will be
announced at the Center-wide Staff meeting
in December. Recipients will be given a
plaque and gift
The award categories are:
1. Technical: Emplo ees working directly
on research projects under the
supervision of a CREC Scientist.
2. Clerical/Administrali e: mrpliye-% in
secretarial, word processing. business
ol ic e, personnel, computer lab, photo lab
and other business-related areas.
3. Trades: Employees associated with the
maintenance shop, grove, custodial and
Criteria for nomination and selection are
outstanding job performance, positive
attitude and dedication to their job and the
Center during 2001. Last year's award
winners were Dr. Uli Hartmond (Technical).
Kathl Snyder (Clerical/Administrative) and
Janice Stewart (Tdadei.
Nomination forms will be distributed to
faculty and supervisors. Faculty and
Department heads may submit more than one
nomination. Deadline for submissions is
Would you like to be in "Citrus Leaves?" We welcome your
contributions, suggestions and corrections. Editor, Monica
Lewandowski; E-mail firstname.lastname@example.org; Ext. 233. Photography,
Gretchen Baut; Graphics: Justin Tabb; Production and Distribution:
Word Processing, Barbara Thompson, Supervisor; Kathy Snydcr,
Karla Flynn and Linda Murphy; Customer Service, Kathy
Witherington, Supervisor, and Nancy Burke.
Employees of the Year Nominations
I www.lal.ufl.edu I
Citrus Production and Fruit Quality Posters For Sale
lajor Factors Outlined In Attractive Chart
Do irrigation and nutrition impact citrus fruit i
production and quality? A new \all chart
provides answers to this and many other
questions, available for S I0 i6 (including tax)
from Jane W'ilson in CREC'i Extension Office
Proceeds go the C R EC's Citrus Research and
The poster-size chart, "Factors Affecting
Citrus Production and Fruit Quality," outlines
relationships between 32 influencing lfctors and
15 production quality elements. The 32
influencing faciori are listed under 9 broad
catiegories, including climate, rootstock, water,
nutrition and pests and diseases. Production and quality
elements include fruit yield, fruit size, juice content, ratio,
soluble solids per acre and juice color.
The chart was developed with the goal of summarizing
factors that a fect citrus production and fruit quality.
It represents a first attempt to
compile information distributed
throughout ,.ientific literature.
-. It is anticipated that information
will be updated over time. Wbile
the chart is geared primarily to
Flonda. much ofthe ino rmntion
is applicable to other citrus
growing regions. Individuals
may also choose to modify the
contents to more accurately
reflect their specific conditions.
Authors are David Tucker,
Graham Barry and Renee Goodrich. Tucker is an Extension
Horticulturist Emeritus with UF/IFAS, Barry is a research
horticulturist with Capespan International, South Africa, and
Renie Goodrich is an Extension Processing Specialist at CREC.
UF/IFAS Marketing Tools
Pete Schmeiser, CREC Audio-Visual technician (in photo at right ,. speaks with
participants at the Florida Association of Extension Professionals meeting in
Palm Beach Gardens on September 12. Pete and Monica Lewandowski staffed
an exhibit displaying UlF IF\S marketing tools that were developed in ajoint
project between Extension District IV and C REC On display was a video that
was developed to depict the research, teaching and Extension programs in
Central Florida, and an assortment of poster templates that were created to
publicize events and seminars. The project was funded by a grant tromi the
lIF IFAS External Relations office to CREC and Extension District IV.
CREC Hosts German Students
Dr. Hubert Werner from the Unilersit. of.Applied Science in
Osnabruck. Germany. brought a group of students to C REi on
September 17 The group. % Inch includes majors in horticulhure.
landscape archniecnure, biolog. and ooil science, came to the south-
eastern U S. to learn more about the area s ecosystems and agricul-
tural industries, They alo visited UF IFAS Research and Education
Centers in Immokalee. Belle Glade. Homestead and Ona
Top left Dr. Hubert Wern mr C REC
students and post-docs n.el with
the Gemian students to exchange
ideas Top right: Raul Villanueja.
CREC graduate student.
Bottom. Student: from GCrmair,
and CREC( students and po.si-docs
spoke about their studies, and
0 research project,
I I -- I I
S, ^ -r-~' ,
A Dr. Mluhammned Farooq
Dr. Farooq is an agricultural engineer working with Dr. Masoud Salyani
on spray application and mechanical harvesting research. He is originally
from a small i llage near Chichawarni, in the Punjab province of Pakistan.
Dr. Farooq received his bachelor's degree from the Uni,. erit. of
AgriculLire in Faisalabad. Pakistan. He obtained a Master's of rngineer-
ing degree from the Asian Institute of TeLhnotlog. in Bangkok. Thailand in
1 9 5 He earned an M.S. and Ph.D. in agricultural engineering from the
University of Saskatchewan prior to coning to CREC in January.
Dr. Farooq and his wife, Mussarat, have a son Umer (14), daughter
Maryam (9) and son Nabeel (2). After living in the bitter cold of
Saskatchewan for several cear_. Dr. Farooq sa.. that he and his wife are
glad to be in sunny Florida.
Marlene Rosales is a UF graduate student working toward her Ph D
in Plant Patholog. She came to CREC this past summer to conduct
citrus tristeza virus (CTV) studies in Dr. Richard Lee's lab. Prior to this
summer, she conducted her studies in Gam ne ile with Dr. Chuck
Niblett. Marlene is a native ot'Sannago. Chile.
Marlene's research involves the molecular characterization of a heat
shock protein analog in the CTV genome. At CREC. she is involved in
electron microscopy studies with Dr. Lee and Dr. Brlansky.
Marlene has a degree in biochemistry from the University of Chile.
She worked for INIA, a research institute in Santiago At INIA, she
became interested in the field of plant pathokIlgs, where her research
involved the molecular characterization of the plum pox virus, a
pathogen of peaches, apricots, plums and other stone fruits.
Marlene lives in the CREC dormitory and is aiming to complete her
Ph.D. in December. Her dissertation defense is scheduled for
December 5 in the Department of Plant Pattholog. in Gainesville.
Safety Precautions Urged
continued from page 1
plan" in mind that is, think about what you would do in a
particular situation before it happens. He encouraged
residents to cilt him with questions or concerns.
A hate crime occurred in Lake Alfred recently when a
Jewish headstone was smashed in Oak Park Cemetery
adjacent to CREC property.
Sgt. Bradley told foreign residents and visitors the\ would
experience greater scrutiny from others. including law enforce-
ment officers, because of their ethnic it- or religion
Dr. Harold Bru\i ing. Center Director, reminded everyone to
inform Security when at the Center after hours. "Work with
our Security after hours sign in or call them when you arrive
and when you leave," Dr. Browning said, pointing out that this
would help the Security officers provide for our safety. The
security officers will also escort people to their cars if re-
In regards to employment issues, Dr. Browning told foreign
students and employees to keep their visa status current.
Because the processing of visas is now expected to take
longer, personnel should take care of visa issues well in
advance of expiration dates. *
Ahmad Omar J
Ahmad Omar is a UF graduate student studying with Dr. Jude Grosser. He is 1
from Elsenbela, een. Dakalha in Egypt. He obtained a B.Sc. in agricultural
chemistry in 1993 and a master's degree in biochemistry in 1997 from the
Faculty ofAgriculture in Zagazig University.
Ahmad was awarded a scholarship from the o' crnmment of Egypt for his "
Ph.D studies. A fer colin picI ng coursework in Gainesville, he moved to Lake
Alfred this past summer.
Ahmad area of research involves citrus canker disease resistance. He is '. ,-'
currcntl> establishing some experiments with a gene from rice that confers 1
resistance to plant pathogenic strains of Xanthomonas oryzae (bacteria related
to Xanthomonas axonopodis pv. citri, the cause of citrus canker) for possible
applications in citrus. t,
Ahmad lives with his wife, Azza Hosni, in the CREC dormitory. She holds a
master's degree in biochemistry, and is interested in pursuing graduate work in food chemistry.
Ahmad enio:, playing soccer and traveling and is interested in computer software
Linda Murphy Comes Full Circle Back to CREC
Her First Job Was At CREC 36 Years Ago
In 196I Linda Miurph\. then known as Linda
Roberts. was a senior at Winter Haven High
School when she came to work at CREC, then
known as the Citrus Experiment Station.
Working with Dr. Jim Blair, a mechanical
engineer ith [he FDOC, she calculated bnx and
pounds solids of loads of fruit brought to the
Packinghouse "I enjo ed working tfor Dr. Blair.
He was a kind man," recalls Linda. She was
featured in a Winter Haven Herald article,
reprinted right. Linda is pictured with a "
Linda recalled that her co-workers gave her a charm for a
charm bracelet. "They were real nice, juLst like [my coworkers]
are now," Linda says.
Linda entered the Air Force after graduating from high school
and worked on their first univac computer. The first computer
applicaions involved processing inventory data.
Over the years, Linda and her husband, Milton, lived and
worked in various places, including Pensacola, where her
husband was stationed in the Navy, and later Atlanta, where
they ii\ ed for 20 years. They eventually moved back to \ inter
Haven in 1986. They have two daughters, Patricia, who is an Air
Force Gul war veteran, and Mandy, who is currently in the Air
Force and involved in our current war situation.
Last year, she started working in the Word Processing
Department. She was involved in several aspects of the ISC
Congress 2000, in addition to working on manuscripts and other
Linda says she is very happy to be back at CREC and finds
that the people here are as nice now as the\ were 35 years ago.
L sde ober In, e Her Wo k Al 'I1
Citrs Ei pftnent Sltion Lake Alred
from a 1965 issue
of the Winter Haven
Eigh reen year old Linda Roberts finds the University of Florida
Citrus Experiment Station a fine place to work and one where
she hopes she idll continue to work ,ifer she is graduated from
high school in June.
Linda, daughter qofMr. and Mrs. R. L. Hamilton of 3919Ave. P,
N. WI is one of the Winter Haven High School seniors who are
working in Winter Haven area under the cooperative business
Her h., at the station out from Lake Alfred is James G
BRlir Linda helps in making tests to determine the pounds
solids and the brix or sugar content of citrus samples.
Blair, Linda and another assistant, R. H. Stoll begin work
ree Linda (Roberth Muhrphi on ip.-' 6
Time Cards Due
Moinda,. October 8
Mo ndd%. October 22
Cungratulations to Kevin and Paula Bui ke on the
birth i C arson Alexander Burke, born Sept 7,
2001,61b 15 oz, 13 1'. Proud
grandma is Nancy Burke, CREC
C ongrantlati ons to Glenn Craddock
i laintenince Shop) and Charlie
Rebecca Gartis. mranied on
September 8 at the Full Gospel
Fellowship Church in Fort Mead.
Submit your news on events and personal accomplishments -
whether it be about you, a relative of yours or another CREC
employee. Weddings, bins, graduations, awards almost any-
thing goes! We'll be happy to recognize any news from you
and your family at any time throughout the year. C all Monica
Lewandowskii X23.3 prE naFil nimlc'.At lal fti cdu
Congratulations to Mauricio Rubio
(Dr. Graham's lab) and Lillian
Rodriguez. married September S at
St. Joseph Catholic Church in
A CREC Welcome To...
Timothy P. Dorriety (OPS Dr. Schumann)
Joey Creekbaum (Groundskeeper- K. Jacobson)
Shirley M.Valdez (OPS Dr. Gminer)
Oscar Oli' eros Cara \'%aitor Dr. Dawson)
S\ inpaith to Dr. Larry Jackson and Mrs. Julie
Jackson on the loss of Julie's son, and to Alta
Church on the loss of her father.
A Fond Farewell To...
Dr. Uli Harlmond. sho l n righi % ilh cor worker Angie Grant.
Dr Hartmond worked at CREC for the past 8 years, first with
Dr. Dave Eiwsenirat. then later with Drs. Kender and Burns on
a citrus abscission project. Dr. Hartmond and his family are
moving to Durham, North Carolina. Bcsi wishes and good
luck to the Hartmonds!
Congratulations to Neil Berger (Richard
Lee's Lab), 35 years at C REC!
Manuscripts Submitted to the Publications Committee in September
T. Satyanarayana, S. (;o da, M. A. Ayllon, M. R. A lbiach-M arti. S. Rabindra n. and \ 0. Dawson. The p23 Protein of Citrms
Tritsc :a Virus Controls Asymmetrical RNAAccumulation. Journal of Virology.
D. S. Howd and R. H. Brlansky. Histop-hiihology of Citrus Leaves Infected with Citrus 'ariegated Chlorosis. Ph /,ipath. ,dg.I.
A. Fares. L. R. Parsons, J. Simunek. T. A. Wheaton, and K. T. Morgan. Simulated Drip Irrigation with Different Stil Types.
Pr,'ii.Unegs of the Florida State Horticultural Society.
C. A. Arias, J. K. Burns, L. M. Friedrich, R. M. Goodrich, and M. E. Parish. Yeast Species Associated with Orange Juik e
Evaluation of Different Identification Methods. *lpl'iic d and Environmental Microbiology.
A New Roof Over Our Heads
Building 24's new roof is now complete. Roofing,
duct work and other materials were replaced in a
major facilities project
5-piece cherry, bedroom set, 2 end tables, 6-drawer
chest of drawers, 6-drawer dresser with mirror,
double bed S350 Sleeper couch, beige, $75.
Recliner, mauve, $50. Photos available.
n See Nancy Burke at the Switchboard.
Citrus Canker Info
Canker decontaminalion'disinfection procedures are
mandatory for equipment and personnel working near
or contacting any citrus plants both upon entry and
departure of an area, regardless of whether an
infestation has been proven to exist. Info is posted on
a bulletin board outside the CREC Majlroom.
Weekly canker updates: Flonda Citrus Mutual
UF/IFAS Citrus Pest Management Guide for
FL Dept. of Agriculture & Consumer Serv ices:
For quarantine maps:
Florida Citrus Canker Eradication Programs
Winter Haven: 800-282-5153
Linda (Roberts) Murphy from page 4
each T~r-ida\LJ with a truckload of whatever fruit is available.
The fruit is tir:,t washed, sized and boxed, then the juice from
each box is extracted separat'eli to determine the pounds solid
and the amount of sugar in the fruit.
Linda wanted to work in a business office where she would
use i.,i7cc machines and at Lake Alfrl she uses a calculator to
arrive at various conclusions. She is also hac omini, p'i. i.l 'nt
in the use of a machine similar to a printing machine which
reminds us that Linda was a paper snritlr for about a year at
If inter Haven Herald.
Linda plans afthr cLomplering high school to complete a busi-
ness college education at Pe'lk Jirnr Cllegt or Winter Haven
Business Colleih Slhe can do that and continue with her present
Linda s three brothers are older than she and she has u ou .nu(
sister Her mother is a native of Lake City where Linda was born
and where Linda lived until she was about nine.
Linda feels that the experiment station is afine place to work.
She fels that she is indebted to mon,& persons in the station for
helping her when she needed it.
CITRUS PROCESSING AND TECHNOLOGY CONFERENCE
OCTOBER 18, 2001
BEN HILL GRIFFIN, JR. CITRUS HALL
This year marks the 52nd Annual Citrus Processors Day and Subtropical Technologp. Conference. Presentations throughout the day
offer research updates in citrus processing and other fruit crops. Registration is free. The program is also posted on the CREC
website at: www.lal.ufl.edu/e\tensionirenee_.goodrich.htm.
8:00am Registration and Cof-ec
8:30 Announcements and Welcome
Dr. Harold Browning, Director, 1 F IF -AS Citrus Research and Education Center
Dr. Joe Ahrens, Director of Scientific Research, Florida Department of Citrus
9:00 SQl ID PHASE MICROEXTRACTION AND GC-OLFACTOMETRY ANALYSIS OF INTERNAL VOLATILES FROM INTACT
CITRUS FRUITS AND THE IR AROIM K ACTIVITY J. Lin
9:10 CHANGES IN AROMA .\cTI\ E COMPONENTS ASSOCIATED WITH THE THERMAL CONCENTRATION OF GRAPEFRUIT
JUICE R. Rouseff, J. Lin, S. Barros and M. Naim
9:20 CHARACTERIZATION 01- AROMA ACTIVE COMPOUNDS IN MANDARIN (. ITRI. r SRETIc( L 1 4 BL 4.\C") IICFE USING
GC-OLF \CTl)METRY K. Evans and R. Rouseff
9:30 GC-OLFACTOMETRY TO DETERMINE IMPORTANT AROMA C OM POUN D IN ORANGE ESSENCE OIL A. Hognadottir, R.
Rouseff and G. Dreher
9:40 POWERFUL AROMA IMPACT COMPOUNDS FROM STRECKER DEGRADATION R \C TION IN CITRUS F Valim and R.
9:50 VARPI -TIfON OF 1- UR \NC )_1URIM ARIN CONTENT IN COMMERCIAL GRAPEFRUIT JUICES W. \' LJmer
10:00 10:30 ORANGE JUICE BREAK
10:30 DIV ELOPMENT OF A GOLD STANDARD SPECIFICATION FOR GRAPEFRUIT JUICES S. M. Barros and W. S. Stinson
10:40 Cl I \NGES IN THE ISOCITRATE ACID LE E1 S IN GRAPEFRUIT JUICE DURING THE 2000-2001 SEASON P. F. Cancalon and
10:50 METHOD DEVELOPMENT OF RARE EARTH ELEMENT EXTRACTION IN ORANGE JUICE USING MICROWAVE DIGES-
TIONS FOR ANALYSIS BY ICP-MS M. Azik and S. N idel
11:00 POTENTIAL HEALTH BENEFITS OF (. ITRI..I C (TROTFNOlDS H. S. Lee
11:10 A MODEL TO ESTIMATE FEED MILL VOC OUTPUT BASED ON OIL RECOVERY EFFICIENCIES R. J. Braddock
11:20 PRELIMINARY IDE-NT I t TION OF CHLORINATED ( COMPOUNDS IN COLD-PRESSED CITRUS OIL E. Weiss and R. J.
11:30 AN UPDATE OF RESULTS ON THE INACTIVATION OF SALMONELLAE IN CITRUS CONCENTRATES M. E. Parish
12:00 noon LUNCH
1:35 pm Welcome, Elizabeth Baldwin, Acting Research Leader USDA-ARS Citrus & Subtropical Products Laboratory
Winter Haven, FL
Moderator: Howard Nivens, (argll ( Ilrt'-A-erica. Frostproof, FL
1:45 INVESTIGATION OF TOMATO FLAVOR Elizabelh A. Baldwin
2:00 ANALYZING AND QU1ANTITATIN(G SLLFUHR C<-fNT ININGI COMPcit'NDS IN FRUIT JUICES USING GC/MS Kevin L.
Goodner and Maria J ordan
2:15 COMPOSITION OF FRUIT ESSENCES Maria J. Jordan and Kevin L. Goodner
2:30- 2:45 BREAK
2:45 PERFORMANCE OF CcOATINGS OF DIFFER N(i GAS PERME ;I.I ITY ON THE QUALITY OF GRAPEFRUIT, CANTALOUPE
AND APPLES Robert D. Hagenmaier
3:00 PURIFIt \TION AND CHARACTERIZATION OF A SALT-DEPENDENT PECTIN METI'r L.LSTERAiE FPRM VALENCIA FRUIT
R A.i TISSUE RKndll G Cameron, Karel Grohmann, Brett Sa.rn. and Robert A. Baker
3:15 DISTRIBUTIONS OF FLAVONOIDS IN THE OR 'NGE John A. Manthe%
3:30 RESPONSE OF E-NOSE TO AROMA CHANGE IN APPLE DURING CA STORAGE AND SUBSEQUENT COATING Jinhe Bai
Sun Mon Tues Wed Thurs Fri Sat
1 2 3 4 5 6
Florida Agricult al Conference
and Trade Shov Lakeland Ctr
Soils & Env-6:00-8:00
7 8 9 10 11 12 13
District IV Mtg 8:30 am
Citrus Processing Faculty mtg
Adv Ctl-A4:00-7:00 course-4:00-7:30
Hori PIy .-5 30-8 30pn-, Soils & Env-600-8 00
14 15 16 17 18 19 20
Faculty Mtg 52nd Annual
Citrus Processing 0 Processors Day
Adv Citricut-4:00-7:00 course-4;00-7:30
Hort Phys-5 30-8 30prm SoIls & Env-6:00-8:00
21 22 23 24 25 26 27
All events subject to change.
9 FFA Citrus Contest Pracuce
11 Extension District IV Faculty Mtg
BHG Rooms 1,3, 4
12 Supervi ors Mtg 8:30 10:30 am,
Packinghouse Conf Room, Dr. Browning
17 Faculty Mtg 8:30 10:30, BHG
Rooms 3-4, Dr. Browning
18 52nd Annual Citrus Processors Day
and Subtropical Technology Conference
BHG Rooms 1-2, all day
Classes at CREC This
Advanced Citriculture HOS 6545 Dr.
Gene Albrigo. Mon., 4:00-7:00 pm, BHG
Horticultural Phys.olog/ HOS 4304 -At
CREC via videoconf. Mon., 5:30-8:30 pm
Dr Mark Ritenour, IRREC Ft. Pierce.
Citrus Processing Technology FOS
5561- Tues, 4:00-7:30 pm, Teaching
Lab. Dr. Robert Braddock.
Soils and the Environment SOS 3022. At
CREC via videoconf. Wed., 6:00-8:00
pm, BHG Conf. Room or Teaching Lab.
Dr. Samira Daroub, Ft. Lauderdale
I _ _ _