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Herbicide Resistant Corn Hybrid Research in Georgia - 2001

Herbicide Resistant Corn Hybrid Research in Georgia - 2001. Eric P. Prostko William K. Vencill R. Dewey Lee Dept. Crop & Soil Sciences University of Georgia. Herbicide Resistant Crops - US (Not Including Stacked Varieties). Source: NASS/USDA. Research in 2001. hybrid performance

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Herbicide Resistant Corn Hybrid Research in Georgia - 2001

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  1. Herbicide Resistant Corn Hybrid Research in Georgia - 2001 Eric P. Prostko William K. Vencill R. Dewey Lee Dept. Crop & Soil Sciences University of Georgia

  2. Herbicide Resistant Crops - US(Not Including Stacked Varieties) Source: NASS/USDA

  3. Research in 2001 • hybrid performance * Tifton (2 tests) * Athens • application timing * Grady Co. * Seminole Co.

  4. Research in 2001 • hybrid performance * Tifton * Athens • application timing * Grady Co. * Seminole Co.

  5. Herbicide Resistant Corn Hybrid Performance - 2001 (LSD 0.05 = NS) (LSD 0.05 = NS)

  6. Roundup Ready Corn Hybrid Performance - 2001 (LSD 0.10 = 22) (LSD 0.05 = 15)

  7. Roundup Ready Corn Hybrid Performance - 2001 ab abc bcd c-f b-e def ef Ponder Farm

  8. Liberty Link Corn Hybrid Performance - 2001 (LSD 0.10 = 22) (LSD 0.05 = 15)

  9. Clearfield Corn Hybrid Performance - 2001 (LSD 0.10 = 22) (LSD 0.05 = 15)

  10. Research in 2001 • hybrid performance * Tifton * Athens • application timing * Grady Co. * Seminole Co.

  11. Corn Yield Response to Liberty Application Timings, 2001. a a P = 0.10 abc abc bc bc c c Grady County - NK83-Z8 Liberty @ 28 ozs/A + AMS @ 3 lb/A

  12. Corn Yield Response to Roundup Ultra Application Timings, 2001. a ab P = 0.10 abc abc bcd bcd cd d Seminole County - DK622RR Roundup Ultra @ 26 ozs/A + AMS @ 3 lb/A

  13. Summary • Better hybrids are available. * DK 662RR * NK 83Z8LL * G8222-IT • Apply Liberty @ 3-4 WAP • Apply glyphosate @ 3-4 WAP • Tank-mix with atrazine * Liberty ATZ or ReadyMaster ATZ

  14. University of Georgia Extension Weed Science (gaweed.com)

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