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Florida peanut variety trials, 1993-
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Permanent Link: http://ufdc.ufl.edu/UF00073374/00001
 Material Information
Title: Florida peanut variety trials, 1993-
Series Title: Marianna NFREC research report
Physical Description: v. : ; 28 cm.
Language: English
Creator: North Florida Research and Education Center (Marianna, Fla.)
Publisher: University of Florida, Institute of Food and Agricultural Sciences.
Place of Publication: Marianna Fla
Creation Date: 1993
Frequency: annual
regular
 Subjects
Subjects / Keywords: Peanuts -- Varieties -- Field experiments -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
serial   ( sobekcm )
 Notes
General Note: Description based on: 1996; title from caption.
General Note: Latest issue consulted: 1997.
 Record Information
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 76789206
lccn - 2006229106
System ID: UF00073374:00001

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Full Text





HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida









.,/ Marianna NFREC Research Report 97-1


Florida Peanut Variety Trials 6Science

D. W. Gorbet', H. A. Peacock2, E. B. Wh4y23,F
H. G. Wood3, and F. M. Shokes4 [R 171997


Peanut farmers now have many more varietiL VettycDfo~i(afrom
than in previous years. It is generally desirable to plant more
than one variety, especially if a producer has more than 100
acres of peanuts. Many factors need to be considered in making
these choices. Good yields and grades over a range of conditions
are usually the most important considerations. However, other
factors that also are important include maturity, disease
resistance, seed supply, acreage to be planted, irrigation, soil
types, market potential, contracts, harvest ease, other crops
being produced, rotations, equipment and labor availability,
planting dates, finances, marketing options, and possibly other
factors.

This report provides data from University of Florida variety
trials conducted at Gainesville (Green Acres), Jay, and Marianna
research centers from 1993-96. All tests were grown under
irrigation and sprayed full season with fungicides for leafspot
control.

Table 1 gives results on pod yields, TSMK (total sound
mature kernels) percentage, maturity and a disease rating for
tests at Marianna (1993-96). Each entry was harvested (dug) at
its apparent correct maturity stage (i.e., E = 125-130 d; M =
133-139 d; L = 145-150 d). Data for Georgia Green, AT 120, and
AT 108 are for 1995-96, only. Disease ratings are for 1996 only
and on a 1-10 scale, where 1 = no disease and 10 = dead or dying
plants. The primary diseases present were white mold
(Sclerotium rolfsii) and TSWV (tomato spotted wilt virus).
Southern Runner, Georgia Green, and NC V11 showed the best
disease resistance in this test. TSWV pressure has been high at


University of Florida, North Florida Research and Education
Center, Marianna, FL 32446.
2University of Florida, West Florida Research and Education
Center, Jay, FL 32565.
University of Florida, Agronomy Department, Gainesville, FL
32611.
University of Florida, North Florida Research and Education
Center, Quincy, FL 32351.






Marianna in recent years.


Table 2 provides results from tests at Gainesville (Green
Acres) for 1993-96. Only pod yield results and maturity
indications are provided. The Gainesville Green Acres site has
less TSWV pressure than Marianna. Again, only 1995 and 1996 data
were available for AT 108 and Georgia Green. SunOleic 95R does
better at this site than at Marianna because of lower TSWV
pressure.

Table 3 gives results from the Jay test. Fewer entries were
included over the testing period at this location, with data from
1994-96 only. Soils are heavier (loamy) at this site.
Gainesville has the most sandy soil, with Marianna being
intermediate.

Table 4 provides results from disease studies conducted at
Marianna for 1995-96 seasons. Pod yield and disease rating
information are provided on runner and Virginia cultivars. These
studies were conducted as a RCB with three replications. A four-
row plot was used with two rows inoculated with S. rolfsii and
two rows left uninoculated. Plots were harvested at proper
maturity for the indicated variety (E, M, L). Based on disease
ratings taken prior to digging, Southern Runner, Georgia Green,
and NC V11 had the best resistance. Based on pod yields of
inoculated plots, all entries suffered significant damage from S.
rolfsii. Southern Runner, Georgia Green, NC Vll, VA 92R, and NC
9 gave the best results when inoculated.

Southern Runner has documented resistance to late leafspot,
white mold, TSWV, and rust. This is the only cultivar on which
producers can reduce fungicide sprays for leafspot without
significant damage. However, considering Southern Runner's late
maturity, it is not a good choice for fields with significant
populations of peanut root knot nematode.






Table 1. Peanut Variety Test Results from NFREC, Marianna, FL (1993-96)



Pod Yield #/A
Mean WM/ t
Variety/type 1996 Mean (93-96) TSMK% Mat.* TSWV

Runner

Southern Runner 4951 4555 77.9 L 2.7
Georgia Green** 4145 4544 79.5 M 2.8
Andru 93 3999 4374 78.0 E 4.3
Marc I 3716 4187 77.4 E 4.0
AT 120** 3630 4137 75.4 E 4.2
AT 108** 3082 4102 74.7 M 5.0
GK 7 3217 4026 79.8 M 5.0
Florunner 3533 3896 80.2 M 4.3
Sunrunner 3225 3834 79.2 M 5.5
Georgia Runner 3002 3808 80.1 M 5.0
SunOleic 95R 3067 3773 77.8 M 5.0

Virginia

NC 10C 4518 4596 75.6 ML 4.0
NC 7 4563 4538 77.1 ME 3.3
NC V11 4109 4387 74.1 E 2.8
VA 92R 3882 4319 76.9 E 4.0
VC 1 3798 4070 75.2 E 4.2
NC 9 3613 3938 75.6 E 3.8

*Maturity (E = early, M = medium, L = late); ** 1995 and 1996 only;
tWhite mold and TSWV ratings in 1996 (1-10, 1 = no disease).







Table 2. Peanut Variety Test Results from Green Acres, Gainesville, FL
(1993-96)

Pod Yield #/A
Variety/type 1996 Mean (93-96) Mat.*

Runner

AT 108** 4828 5179 M
Georgia Green** 4538 5131 M
SunOleic 95R 4320 4691 M
GK 7 4961 4549 M
Marc I 4247 4489 E
Andru 93 4332 4470 E
Sunrunner 4489 4431 M
Georgia Runner 4610 4426 M
Florunner 4417 4422 M
Southern Runner 3866 4209 L

Virginia

VC 1 4550 4659 E
NC V11 4743 4438 E
NC 10C 5409 4405 ML
VA 92R 4743 4404 E
NC 7 4925 4387 ME
NC 9 4827 4285 E

*Maturity (E = early, M = medium, L = late); ** 1995 and 1996 only.






Table 3. .Peanut Variety Test Results from WFREC, Jay, FL 1994-96



Yield #/A

Entry 1994 1995 1996 Average

Southern Runner 4138 5209 4465 4604
Georgia Runner 3557 4919 4683 4386
Andru 93 4102 5082 3957 4380
NC 7 -- 4421 4320 4371
NC V11 3485 -- 5082 4284
Florunner 3594 4574 4538 4235
GK 7 3884 -- 4320 4102
AT 108 3920 4726 3557 4068
SunOleic 95R 3485 4592 3122 3733








Table 4. Pod yield
rolfsii) studies at


and disease rating for white mold (S.
Marianna, 1995-96


Pod Yield (#/A) Disease
Entry/mkt. type Uninoc. Inoc.* Loss Uninoc. Inoc.*

Runner


Southern Runner
Georgia Green
Andru 93
Marc I
AT 120
AT 108
GK 7
Florunner
Georgia Runner
SunOleic 95R
Sunrunner

Virginia

NC 10C
NC 7
NC V11
VA 92R
VC 1
NC 9


Avg.


5033
4544
4395
4144
4137
4102
4055
3951
3807
3669
3614


4791
4688
4443
4376
4119
4060


4231


2544
2419
1902
1779
1277
1432
1377
1485
1466
1494
1604


2069
2023
2925
2605
2238
2558


1953


2489
2125
2493
2365
2860
2670
2678
2466
2341
2175
2010


2722
2665
1518
1771
1881
1502


227


2.5
2.3
3.3
2.9
3.4
3.4
3.5
3.3
3.6
3.9
3.8


4.6
4.9
6.6
6.6
7.5
8.2
7.9
7.3
7.6
7.9
7.3


2.9
2.7
2.3
5.3
3.1
3.0


3.2


6.2
6.9
4.9
5.8
5.9
5.7


6.6


*Inoculated with S. rolfsii


(white mold).