Breeding Behavior of Tufted Seed Character in Cotton, Gossypium Hirsutum

B. Girma, B.A. Waddle, and P.M. Bourland


 
ABSTRACT

The integration of reduced seed fuzz into commercial cottons could facilitate easy separation of the lint from the seed at the gin, thus requiring less power and enhancing fiber uniformity due to less breakage of the fiber. Three fuzzy seeded commercial varieties of cotton, Stoneville 213, New Mexico Polycross, and Deltapine 61, were crossed with two.tufted seed lines, A460-6 and A460-8 of the Yugoslav (#)72 derivatives, to study the breeding behavior of the tip fuzz character. The F1's were test-crossed to a true breeding glabrous seeded A511-4 and to a tufted D432-6 both of which were derived from a mutant found in a breeding line of (D15 x Stripper 31). The tufted character found in Yugoslav (#)72 behaved as if it were controlled by a single recessive gene. It was not allelic to the glabrous character or to the tufted trait found in (D15 x Stripper 31). Genetic background of the commercial parents influenced fuzz density expression in subsequent populations. The findings suggest that the tip fuzz trait derived from Yugoslav (#)72 can be transferred to certain commercial cottons without an attendant low lint percentages.



Reprinted from 1993 Proceedings Beltwide Cotton Conferences pg. 630
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998