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Study of Heritability and Gene Action Using CMS Line in Hybrid Rice (Oryza sativa L.)
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The low heritability (h2ns ) estimate was observed with grain yield plant-1 and test weight indicating a preponderance of non-additive gene action to govern these traits. Combining ability revealed higher specific combining ability variance than their respective general combining ability variances indicating the predominance of non-additive gene effects indicated the relevance of heterosis breeding for improving the yield and yield contributing attributes.
Keywords
Heterosis, Combining Ability, Line X Tester, Rice Hybrids.
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