Madras Agricultural Journal
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Research Article | Open Access | Peer Review

GENETIC COMPONENTS OF VARIATION IN UPLAND COTTON (G. hirsutum L)

Volume : 85
Issue: Jul-sep
Pages: 378 - 381
Published: July 02, 2023
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Abstract


A ten parent diallel cross analysis involving bollworm tolerant donor lines of upland cotton was studied for component of variance analysis for seven traits. Both additive and non-additive gene action were important for all the traits except seed index. However the role of dominance was major for all the traits studied. Dominance was ambidirectional for all the traits studied. Epistasis influenced the performance of number of bolls and seed cotton yield. Narrow sense heritability was high for days to 50 per cent flowering, boll number and seed cotton yield/plant while moderate for boll weight, seed index, lint index and ginning percentage. The number of genes controlling inheritance of the traits were established. Any form of recurrent selection may be followed for exploiting all the three types of gene actions.

DOI
Pages
378 - 381
Creative Commons
Copyright
© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

Keywords


Diallel analysis upland cotton heritability genetic components bollworm.
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