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A Two Year Agronomic Evaluation of Conventional and Transgenic Bt Cotton Cultivars in the Mississippi Delta

L. C. Adams, J. J. Adamczyk, Jr. and D. D. Hardee


 
ABSTRACT

While utilizing cotton IPM practices, over 20 mid-south cotton varieties were examined across different growing conditions for yield and lint quality during 1999 and 2000. An early-season variety (DP20B) was the highest yielding variety for both years. Based on yield, these data indicate that many commercially available varieties differed significantly from one another while some varieties were discounted for high micronaire. Furthermore, transgenic Bt cotton varieties significantly out-yielded non-Bt varieties by 94 lb lint/A during 2000. It is hoped that this information will be useful to the cotton grower for future cultivar selections in the mid-south.





Reprinted from Proceedings of the 2001 Beltwide Cotton Conferences pp. 1031 - 1033
©National Cotton Council, Memphis TN

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Document last modified XXXXXX, XXX XX 2001