peanut cultivars: making sense of all the options

Peanut Cultivars:Making Sense of all the Options

Peanut Cultivars:Making Sense of all the Options

John P. Beasley, Jr.

Professor & Extension Peanut Agronomist

Crop and Soil Sciences Department

John P. Beasley, Jr.

Professor & Extension Peanut Agronomist

Crop and Soil Sciences Department

Evaluating CultivarsEvaluating Cultivars

Maturity Range

Growth Habit

Seed Size

Pest Resistance

Marketability

Seed Availability

Oil Chemistry characteristics

Varieties Available in Southeast in 2006

Varieties Available in Southeast in 2006

Georgia Green

AP-3

Georgia-02C

C-99R

Georgia-03L

Georgia-01R

Carver

Andru II

AT 3081R

Peanut Yield (lbs/A)2003-2005, Tifton, Irrigated

2003 2004 2005 AVG

Georgia-03L 5049 3496 4118 4221

AP-3 4765 2276 4404 3815

Georgia Green 5017 2185 3925 3709

Carver 4128 1144 4102 3125

Georgia-02C 5277 3250 4009 4179

C-99R 3269 2947 4142 3453

Georgia-01R 4234 2373 3503 3370

www.griffin.uga.edu/swvt

Georgia Green

Predominant cultivar in SE since 1997When first released, had best level of

resistance to TSWVSeed size smallest of currently available

runner type cultivarsSome resistance to Rhizoctonia limb rotWill account for 55-60% of seed supply in

SE in 2006

AP-3

Released in 2003 by Univ. of FloridaMarketing contract with Anderson Peanut Co.Medium maturity, similar to Georgia GreenLight green foliage colorLevel of res’t to TSWV best of any varietiesMore susceptible to leaf spots“Normal” oil chemistrySeed available from Anderson Peanut Co.

Georgia–02C

Released from UGA in 2002Late maturityHigh oleicGood level of res’t to CBR TSWV res’t better than Georgia Green

C-99R

Released from Univ. of Florida in 1999Late maturityTSWV res’t better than Georgia GreenLarger seed size, approximately 650 seed per

poundCan produce excess vine growth

Georgia–03L

Released in 2003 from Univ. of GeorgiaMid maturing (similar to Georgia Green)“Normal “ oil chemistryResistance to TSWV = to Georgia-02C

(better than Georgia Green Seed size larger than Georgia GreenGrowth habit exhibits prominent main stemVigorous early season growth

Georgia–01R

Released in 2001 from Univ. of GeorgiaLate maturing“Normal “ oil chemistryResistance to TSWV better than any other

cultivars except AP-3 and Tifrunner Significant level of res’t to CBRLarge seed size (similar to C-99R)Very flat growth habit, virtually no main

stem

Carver

Medium maturity“Normal” oil chemistryTSWV res’t better than Georgia GreenSome resistance to CBR

Andru II

Early maturityMarketing contract with Anderson Peanut

Co.High oleicTSWV res’t = to Georgia GreenWhite Mold res’t = or better than Georgia

Green

Variety ComparisonVariety Comparison

VarietyVariety Maturity(135-140 DAP)

UGA Disease Risk Index

High Oleic

(Yes or No)TSWV Leaf Spot White Mold Limb Rot

ViruGard 21-28(-) 30 20 20 NA No

Andru II 10-14(-) 25 30 20 25 Yes

Gregory (Va) 7-14(-) 30 30 20 25 No

NC-V 11 (Va) 7-14(-) 35 30 25 25 No

Carver 0-7(-) 20 30 20 25 No

Georgia Green 0 30 20 20 15 No

Georgia-03L 0 15 15 10 20 No

AP-3 0 10 25 10 25 No

AT 3081R 0 NA NA NA NA No

Georgia-02C 14-21(+) 15 20 10 20 Yes

C-99R 14-21(+) 20 15 15 25 No

Georgia-01R 14-21(+) 10 10 15 15 No

Tifrunner 14-21(+) 10 15 25 25 No

Variety 2003 # 2004 # 2005 # Avg. (Rank)

Hull 15.2a 2 19.2a 1 23.7a 1 19.4(1)

A Norden 17.0a 1 16.7ab 2 17.7a-c 3 17.1(2)

GaGreen 14.2a 3 14.0bc 3 19.2ab 2 15.8(3)

AndruII 7.7b-d 7 11.5b-d 5 15.2b-d 4 11.5(4)

C99R 11.0a-c 4 9.0c-e 8 12.2c-e 5 10.7(5)

DP1 9.7a-d 6 11.5b-d 4 10.2d-g 7 10.5(6)

Carver 11.0a-c 5 9.0c-e 9 11.2d-f 6 10.4(7)

GA01R 5.2cd 8 10.5cd 6 8.5e-g 9 8.1(8)

AP3 5.7cd 9 11.0cd 7 5.0g 8 7.2(9)

Avg. # Feeding Sites/3 ft. 2003-2005

Summary of CultivarsSummary of Cultivars• Maturity range – compared to Georgia Green

– Early – Andru II (10-14), ViruGard (21-28), Carver (0-7)

– Mid (same as GG) – AP-3, Georgia-03L, AT 3081R– Late (14-21 days) – Georgia-02C, C-99R, Georgia-

01R, Tifrunner

• TSWV Rating – from TSWV Index– 30 points – Georgia Green, ViruGard– 25 points – Andru II– 20 points – Carver, C-99R– 15 points – Georgia-03L, Georgia-02C– 10 points – Georgia-01R, AP-3, Tifrunner

Summary of CultivarsSummary of Cultivars• Seed Size

– Large-seeded (~650 seed/lb)• C-99R, Georgia-01R, ViruGard

– Medium (~700-750 seed/lb)• AP-3, AT 3081R, Carver, Georgia-02C, Georgia-03L,

Andru II, Tifrunner

– Small (~825-850 seed/lb)• Georgia Green

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