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Variety Performance in Fields Infested with Verticillium dahliae in the High Plains of Texas

Variety Performance in Fields Infested with Verticillium dahliae in the High Plains of Texas Terry Wheeler Texas Agricultural Experiment Station Lubbock, TX. Overall Best Recommendation in 2005. Materials and Methods 32 – 36 varieties at a site

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Variety Performance in Fields Infested with Verticillium dahliae in the High Plains of Texas

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  1. Variety Performance in Fields Infested with Verticillium dahliae in the High Plains of Texas Terry Wheeler Texas Agricultural Experiment Station Lubbock, TX

  2. Overall Best Recommendation in 2005

  3. Materials and Methods 32 – 36 varieties at a site 4 replications, randomized complete block design Plots were 35.5 ft. long and 2 rows wide Soil at each test site was sampled for V. dahliae at planting. Plots were rated for incidence of wilt in August Plots were harvested with a 2-row plot stripper

  4. Brownfield August 28

  5. Petersburg August 18

  6. Petersburg August 18, 2006

  7. Petersburg 2006

  8. Petersburg 2006

  9. HVI values and their relationship with Verticillium wilt for Petersburg

  10. Slaton August 24

  11. Slaton August 24, 2006 Drip

  12. Slaton 2006 drip

  13. Slaton 2006 Drip

  14. Levelland August 8, 2006

  15. Levelland August 8, 2006, Drip

  16. Levelland 2006, Drip

  17. Levelland 2006, Drip

  18. HVI and the relationship with Verticillium wilt at Levelland

  19. Conclusions • 1) 2005 recommended varieties (FM 960 types, FM 989 types, DP 455BR) looked good again in 2006. • 2) The only Flex varieties that looked good were AFD 5064F and AFD 5065B2F (tested at one site only with Verticillium wilt). • 3) PM 2326RR was highly ranked in two tests. BCG 520R, AFD Raider 271, PG 440W, FM 832LL, and FM 988LLB2 were highly ranked at one site.

  20. Thanks to the Cotton State Support Committee and Plains Cotton Improvement Programs for funding support. Thanks to the producers for allowing us to test the varieties in their fields: Chris Bednarz (Slaton), Preston Turner (Levelland), Cooper Ellison (Petersburg), Walter King (Brownfield). Thanks to the IPM and County agents that assisted in the sites: Kerry Siders (Levelland), Scott Russell (Brownfield), Emilio Nino (Earth), Warren Multer (Garden City) and Michael Dollie (Petersburg).

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