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Combining ability of upland cotton, Gossypium hirsutum L., with traits associated with sticky fiber

Author:
Hague, Steve S., Gannaway, John R., Boman, Randal K.
Source:
Euphytica 2008 v.164 no.1 pp. 75-79
ISSN:
0014-2336
Subject:
Gossypium hirsutum, cotton, lint cotton, carbohydrate content, glucose, sucrose, fiber quality, sugar content, general combining ability, specific combining ability, genotype, lines, line differences
Abstract:
Sticky cotton causes severe processing problems at textile mills and can be caused by plant sugars deposited directly from the plant to the lint in the absence of insects. A partial diallel design was used to investigate the combining ability of six upland cotton, Gossypium hirsutum L., genotypes in Lubbock, Texas. Sucrose and glucose on fibers were measured as well as more mechanical fiber properties including stickiness ratings. Variance component analysis indicated significant differences among genotypes for all fiber traits and for sugar content. The greatest differentiation occurred in samples taken from more immature fruiting forms. Moreover, significant GCA and SCA differences were determined among parental lines for fiber traits including stickiness ratings. Findings suggest that breeding efforts could be directed toward lines with a low likelihood of producing sticky cotton.
Agid:
739255