Madras Agricultural Journal
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Research Article | Open Access | Peer Review

COMBINING ABILITY AND HETEROSIS IN DRY AND SEMI-DRY PADDY

Volume : 70
Issue: Apr-apr
Pages: 233 - 237
Published: September 28, 2023
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Abstract


Combining ability analysis was made in rice through line X tester analysis for major yield and yield components. Considerable degree of genetic variability was observed in the parents. The combining ability variances were significant and indicated the importance of both addi- tive and non-additive gene action in the expression of yield characters. Chithariyan was an outstanding general combiner for all the five characters under study. Poongar/IR-8 and Chitharivan/Kannagi were found to be the best cross combination with significant sca effects for important yield components. The crosses that involved Chithariyan as one of the parents were also found with high heterosis.

DOI
Pages
233 - 237
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.

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