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