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Asian Journal of Plant Sciences

Year: 2002 | Volume: 1 | Issue: 2 | Page No.: 130-131
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Authors

Muhammas Aslam Khan

Abdul Sattar Larik

Zahoor Ahmed Soomro

Keywords

Research Article

Study of Gene Action for Yield and Yield Components in Gossypium hirsutum L.

Muhammas Aslam Khan, Abdul Sattar Larik and Zahoor Ahmed Soomro
A diallel cross experiment was conducted in Randomized Complete Block Design involving Stone-Ville-213, HG-6-1-N, Fregobract-83 and AG-hirsutum-87 upland cotton cultivars to ascertain the type of gene action for different quantitative traits. Data was collected on ginning out turn percentage, seed index and seed cotton yield/plant. The genotypes were highly (P≥ 0.01) significant. Results demonstrated that GOT% and seed index were controlled by over dominant type of gene action, whereas seed cotton yield/plant was governed by partial dominance type of gene action. The variety Stone-ville-213 is good general combiner for GOT% and seed cotton yield/plant whereas AG-hirsutum-87 is best general combiner for the character seed index. The crosses Stone-ville-213 x Fregobract-83, Stone-ville-213 x HG-6-1-N and Stone-ville-213 x AG-hirsutum-83 were the best specific combiner for GOT%, seed cotton yield/plant and seed index, respectively.
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