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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. Evaluating Cultivars. Maturity Range Growth Habit Seed Size Pest Resistance Marketability Seed Availability Oil Chemistry characteristics.

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Peanut Cultivars: Making Sense of all the Options

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  1. Peanut Cultivars:Making Sense of all the Options John P. Beasley, Jr. Professor & Extension Peanut Agronomist Crop and Soil Sciences Department

  2. Evaluating Cultivars • Maturity Range • Growth Habit • Seed Size • Pest Resistance • Marketability • Seed Availability • Oil Chemistry characteristics

  3. Georgia Green AP-3 Georgia-02C C-99R Georgia-03L Georgia-01R Carver Andru II AT 3081R Varieties Available in Southeast in 2006

  4. Peanut Yield (lbs/A)2003-2005, Tifton, Irrigated www.griffin.uga.edu/swvt

  5. Georgia Green • Predominant cultivar in SE since 1997 • When first released, had best level of resistance to TSWV • Seed size smallest of currently available runner type cultivars • Some resistance to Rhizoctonia limb rot • Will account for 55-60% of seed supply in SE in 2006

  6. AP-3 • Released in 2003 by Univ. of Florida • Marketing contract with Anderson Peanut Co. • Medium maturity, similar to Georgia Green • Light green foliage color • Level of res’t to TSWV best of any varieties • More susceptible to leaf spots • “Normal” oil chemistry • Seed available from Anderson Peanut Co.

  7. Georgia–02C • Released from UGA in 2002 • Late maturity • High oleic • Good level of res’t to CBR • TSWV res’t better than Georgia Green

  8. C-99R • Released from Univ. of Florida in 1999 • Late maturity • TSWV res’t better than Georgia Green • Larger seed size, approximately 650 seed per pound • Can produce excess vine growth

  9. Georgia–03L • Released in 2003 from Univ. of Georgia • Mid maturing (similar to Georgia Green) • “Normal “ oil chemistry • Resistance to TSWV = to Georgia-02C (better than Georgia Green • Seed size larger than Georgia Green • Growth habit exhibits prominent main stem • Vigorous early season growth

  10. Georgia–01R • Released in 2001 from Univ. of Georgia • Late maturing • “Normal “ oil chemistry • Resistance to TSWV better than any other cultivars except AP-3 and Tifrunner • Significant level of res’t to CBR • Large seed size (similar to C-99R) • Very flat growth habit, virtually no main stem

  11. Carver • Medium maturity • “Normal” oil chemistry • TSWV res’t better than Georgia Green • Some resistance to CBR

  12. Andru II • Early maturity • Marketing contract with Anderson Peanut Co. • High oleic • TSWV res’t = to Georgia Green • White Mold res’t = or better than Georgia Green

  13. Variety Comparison

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

  15. Summary 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

  16. Summary 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

  17. University of Georgia PEANUT Research and Extension www.ugapeanuts.com

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