Combining ability analysis was carried out in a 6x6 diallel cross of F1 and F2 population for three important traits of cotton corp. Seed cotton yield, ginning outturn and fibre length were found to be controlled by both additive and non-additive gene action with predominance of additive gene action. G cot 10 was found to be best general combiner for yield whereas 'Acale 4-42' for ginning outturn as well as halo length. per se performance of parents was good indicator of their general combining ability crosses showing high sca effects involved parents with high, medium and low gca effects for yield. Suitable breeding method for exploitation of the available variability is described.
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Madras Agricultural Journal (MAJ)
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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