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Progress Report on Hybrid Cotton

R. F. Holland and C. G. Cook


 
ABSTRACT

Hybrid cotton and heterotic response in cotton has been studied for several years. Although hybrid cottons are planted on large acreages in India and China, no significant acreage is devoted to hybrid cotton in other cotton producing areas. In these studies several hand-pollinated cotton hybrids were evaluated for a 3-year period in Weslaco, TX, which is located in the Lower Rio Grande Valley and for a 2-year period at College Station, TX, which is located in the Brazos River Delta. The objectives of these studies were to identify superior yielding hybrids and to study various factors involved in heterotic response. The evaluated hybrids were developed by two independent programs and with the cytoplasmic male sterility system, which utilized the Gossypium harknessii Brandegee cytoplasm. Environmental effects on fertility restoration were noted and several proposed ideas for hybrid cotton seed production were evaluated. Results indicated that hybrids made with particular pedigrees produced significant yield advantage and fertility of the hybrids was not influenced significantly by environmental factors at the test locations.



Reprinted from Proceedings of the 1999 Beltwide Cotton Conferences pp. 450 - 453
©National Cotton Council, Memphis TN

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Document last modified Monday, Jun 21 1999