Working Document Series Open Access 2010 RUF-34409

Combining ability among interspecific (G. hirsutum x G. barbadense) and mutation derived lines of cotton in fiber quality and agronomic traits

N. BbebeD.M LunguB.M. Siamasonta

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Abstract

114 words

Zambia’s cotton has had a very good reputation on the international market for a long time. In order to maintain this reputation, the cotton Development Trust of Zambia continues to evaluate germplasm for suitable parents. In this study, the combining ability of crosses between cotton mutants and interspecific lines was evaluated. Crosses influenced all cotton quality traits significantly (P<0.01). Both additive and nonadditive gene action were important in controlling all fibre quality traits except yield and earliness. Narrow sense heritability was low, implying that selection must be made in later generations of breeding. Line MFKF-20Kr was the best combiner and should be considered as a parental source for most quality traits in Zambia’s cotton.

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