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Selection of Stovepipe Lines From Chemically Mutated Cotton

C. A. Key, J. K. Dever, D. L. Auld and R. J. Baker


Cotton (Gossypium hirsutum L.) lines exhibiting stovepipe growth habit (short fruiting branches, shortened internode length, and reduced number of vegetative branches) were selected from a population of HS 200, which had undergone chemical mutagenesis. Mutagenesis was accomplished by exposing imbibed seed to a 3% v/v concentration of Ethyl Methanesulfonate (EMS). In 1997, a replicated progeny test of two M4 lines which exhibited the stovepipe phenotype was conducted at Lubbock, TX to ensure this trait was genetically stable. Progeny from 13 M5 lines exhibited 100% expression of the stovepipe growth habit and progeny from 31 M5 lines exhibited greater than 90% expression of the stovepipe growth habit. These data indicate that the stovepipe phenotypes selected from a chemically mutated population of HS 200 were highly heritable and after phenotypic selection appeared to be genetically stable.

Reprinted from Proceedings of the 1998 Beltwide Cotton Conferences pp. 492 - 493
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998