Madras Agricultural Journal
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Research Article | Open Access | Peer Review

HETEROSIS AND COMBINING ABILITY IN FODDER COWPEA FOR GREEN FODDER AND SEED YIELD

Volume : 83
Issue: Jan-jan
Pages: 11 - 14
Published: July 06, 2023
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Abstract


Forty-two crosses of cowpea derived from 14 lines and 3 testers were utilised for heterosis and combing ability studies for green fodder as well as grain yield and yield components. Scope for exploitation of heterosis in cowpen was indicated with the materials studied. The highest heterotic expression for green fodder yield was recorded by the hybrid UPC 9201 x CO 5 (121.01 per cent) over the standard parent CO 5. The hybrid CS 55 x CO 4 recorded the maximum heterotic effect (215.34 per cent) over the standard parent for seed yield. The GCA:SCA variance ratio for all the traits showed predominance of SCA variance over GCA variance indicating predominance of non-additive gene action. Among the parents, the lines UPC 9103 and UPC 9201 and the tester CO S were found to be the best combiners. Selection of hybrids based on per se performance, seu effects and heterotic effects will be effective.

DOI
Pages
11 - 14
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


Fodder Cowpea Yield Heterosis Combining Ability
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