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Louisiana Variety Testing

Louisiana Variety Testing. 2010 SCC-33/UCTA St. Pete Beach, FL January 26-29, 2010 Rick Mascagni Northeast Research Station St. Joseph, LA. LSU AgCenter Variety Testing. Solicits seed company participation via application form on-line Collects seed Packages and distributes seed/locn

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Louisiana Variety Testing

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  1. Louisiana Variety Testing 2010 SCC-33/UCTA St. Pete Beach, FL January 26-29, 2010 Rick Mascagni Northeast Research Station St. Joseph, LA

  2. LSU AgCenter Variety Testing

  3. Solicits seed company participation via application form on-line Collects seed Packages and distributes seed/locn Visits each location Collects data from each locn Summarizes data in a report posted on-line Plants the test and directs all the recommended cultural practices Takes notes, i.e. mid-silk date, plant height, lodging, etc. Harvests plots Coordinator Cooperator

  4. Variety Testing • Variety testing conducted on research stations, which are autonomous. • Funding generated by entry fees • Wheat/oats - $300/entry (receives commodity support) • Corn/grain sorghum - $500/entry • Soybeans - $600/entry • Cotton - $900/entry • Fees are divided among coordinator, cooperators, and administration • RCB with 4 to 5 reps • Data posted on the web • www.lsuagcenter.com/crop • Click on “Variety Trials & Production Practices” • Single locations

  5. Background of OVT 1992 - 2000 • Any variety tested for three years and whose yield falls within 90% of the avg. yield of the top three hybrids by location and maturity group was recommended provided it was acceptable in other agronomic traits.

  6. Background of OVT2001- 2007 • Any variety tested for two years and whose yield falls within 90% of the avg. yield of the top three hybrids by location and maturity group was recommended provided it was acceptable in other agronomic traits.

  7. Background of OVT 2008-2009 • Corn, Grain Sorghum, Soybeans, Cotton • 2007 was the last year varieties were recommended • Starting in 2008, highest-yielding varieties for one year (varieties falling within one LSD, 0.10) were reported • Highest-yielding varieties for two years (varieties that fall within one LSD for two years) were reported

  8. Soybean Variety Testing - 2009 • Coordinator – Ronnie Levy (Ext. Spec.) • Dean Lee Research Station – Alexandria • Macon Ridge Research Station – Winnsboro • Northeast Research Station – St. Joseph

  9. Soybean Variety Testing - 2009 • MGIII – 5 varieties • MGIV early – 11 varieties • MGIV late – 75 varieties • MGV – 62 varieties • MGVI – 2 varieties

  10. Soybean Parameters Measured • Grain yield • Maturity date • Plant height • Lodging • Salt damage • Seed quality • Green stem • Cercospora, Leaf blight ratings

  11. Cotton Variety Testing - 2009 • Coordinator – Jim Hayes (RA-RRRS) • Dean Lee Research Station – Alexandria (silt loam and clay) • Macon Ridge Research Station – Winnsboro (irr and non-irr) • Northeast Research Station – St. Joseph (silt loam and clay)

  12. Cotton Variety Testing - 2009 • Early-maturing – 25 varieties • Medium-maturing – 20 varieties

  13. Cotton Parameters Measured • Yield • Lint % • Fiber properties • Length UHM • Micronaire • Strength • Uniformity

  14. Grain Sorghum Hybrid Testing - 2009 • Coordinator – Rick Mascagni (PL-NRS) • Rice Research Station – Crowley • Dean Lee Research Station – Alexandria • Red River Research Station – Bossier City • Macon Ridge Research Station – Winnsboro • Northeast Research Station – St. Joseph

  15. Grain Sorghum Hybrid Testing - 2009 • 23 hybrids • 6 seed companies

  16. Grain Sorghum Parameters Measured • Grain yield • Harvest moisture • Test weight • Mid-head • Plant height • Head exertion • Head type • Bird damage • Midge damage • Lodging

  17. Wheat/Oat Variety Testing - 2009 • Coordinator – Steve Harrison (PL-BR) • North Louisiana • Alexandria, Bossier City, Winnsboro, St. Joseph • South Louisiana • Baton Rouge, Crowley, Jeanerette • Oats • Baton Rouge, Bossier City, Winnsboro

  18. Wheat/Oat Variety Testing - 2009 • Wheat • 69 entries • 50 varieties • 19 lines (LA, GA, AR, VA) • Oats • 22 entries • 6 varieties • 16 lines (LA, FL, TX)

  19. Wheat/Oat Parameters Measured • Grain yield • Test weight • Head day • Plant height • Lodging • Diseases • Leaf rust • Stem rust • Phenotype

  20. Corn Hybrid Testing - 2009 • Coordinator – Rick Mascagni (PL-NRS) • Dean Lee Research Station – Alexandria • Red River Research Station – Bossier City • Macon Ridge Research Station – Winnsboro • Northeast Research Station – St. Joseph (silt loam and clay)

  21. Corn Hybrid Testing - 2009 • 89 hybrids • 5 hybrids not RR • 12 seed companies

  22. Corn Parameters Measured • Grain yield • Harvest moisture • Test weight • Plant population • Mid-silk • Plant height • Ear height • Shuck cover • Lodging • Ear tip

  23. Corn Hybrid Families • Pioneer brand hybrid • PB 31G66 (conventional) • PB 31G68 (YG) • PB 31G65 (RR) • PB 31G71 (Herculex, LL, RR)

  24. Corn Hybrid Maturity • In the 1990’s, had early maturity (106-112 days), medium maturity (113-118 days), and late-maturity (119 and greater days) categories in the OVT. • We were relying on seed companies to categorize hybrid maturity. • In early 2000, started using harvest moisture for categorizing hybrid maturity.

  25. Corn Maturity - 2001 • Early Maturity 12.9 - 14.4% • Medium Maturity 14.7 - 18.1% • Full Season 18.9 - 19.4%

  26. Corn Hybrid Maturity - 2009 • Days to maturity ranged from 107 to 120. • Harvest moisture on Sharkey clay at the NERS ranged from 14.5 to 18.1%. • High-yielding group across locns. – 2009 • 106 – 112 day maturity – 7 hybrids • 113-118 day maturity – 40 hybrids • 119 and greater day maturity – 5 hybrids • Should we categorize hybrids based on maturity?

  27. Rick MascagniNortheast Research StationP.O. Box 438St. Joseph, LA 71366 Ph: (318) 766-3769 Fax: (318) 766-4278 e:mail: hmascagni@agcenter.lsu.edu WHO DAT.NATION GO SAINTS

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