Fiber Development of Ligon Lintless-2 Mutant of Cotton Gossypium hirsutum L.

R.J. Kohel and C.R. Benedict


 
ABSTRACT

A new fiber mutant character produced short fibers similar to those produced by the Ligon lintless-1 mutant (Lil), but unlike the stunted and deformed vegetative morphology of Lil plants, the new fiber mutant had normal vegetative growth. Analyses determined that it was independent of Lil and it was designated Ligon lintless-2 (Li2). A fiber developmental study of the Li2 allele was conducted that included Lil, TM-1, and normal segregates from crosses of Li2 and TM-1. Mean fiber length, dry weight accumulation and ratio of weight/length from flowering to open bolls were determined. Lines with the normal alleles were not significantly different from each other, but they were significantly different from Lil and Li2 for fiber length and weight. Le2 was significantly lighter than Lil. The ratio of length/ weight revealed no significant differences among the normal lines, but Lil was significantly higher than Le2. Li2 had normal secondary wall development and Lil had fibers of greater secondary wall development than that of Li2, or normal.



Reprinted from 1991 Proceedings Beltwide Cotton Conferences pg. 1031
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998