ÃÞ »¨ ѧ ±¨ Cotton Science 2009£¬21(2)£º107-114
Analysis on Fiber Quality Traits Inheritance of High Quality Upland Cotton in Xinjiang Abstract£ºBased on the data of field experiment of six generations (P1¡¢P2¡¢F1¡¢F2¡¢B1¡¢B2) from the upland cotton cross (9-1696 ¡Á CCRI 35), the inheritance of four traits of fiber quality were studied by the methods of generation means, major gene-polygene mixed inheritance model.The major results are as follows: 1) The heredity of fiber quality traits were mostly additive, as well as epistasis. Through Chi-Square test, the traits of fiber length and elongation expressed additive dominant and epistatic effects, and the traits of strength and uniformity expressed additive and epistatic effects. 2) It was showed that strength and elongation adapted to two major genes plus polygene model, and the major genes express additive dominant and epistatic effects. The major-genes hereditability were 47.80% of strength, 20.07% of elongation. Fiber length and uniformity were controlled by both major-gene and polygene.
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