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VOL. 6, ISSUE 5 (2021)
Genetic variability and association analysis in rice (Oryza sativa l.)
Authors
CH Prashanth, Gaibriyal M Lal
Abstract
Twenty eight rice genotypes including one check variety were evaluated for yield and yield contributing characters to study genetic variability, heritability, genetic advance, association and direct and indirect effects on yield during Kharif-2020 for 13 quantitative characters. High estimates of GCV and PCV were recorded for tillers per hill followed by panicles per hill, test weight and biological yield. Grain yield per plant was positively and significantly associated with plant height, tillers per hill, panicles per hill, panicle length, flag leaf length, flag leaf width, spikelets per panicle, biological yield, harvest index and test weight at both genotypic and phenotypic levels. Path coefficient analysis revealed positive direct effect of tillers per hill, panicles per hill, flag leaf length, spikelets per panicle, days to maturity, biological yield, harvest index and test weight with grain yield per plant at both phenotypic and genotypic level. Genetic variability, correlation, path analysis revealed that panicles per hill, test weight and biological yield are most important yield components in rice. Thus, these traits are identified as the efficient and potential should be given for the selection of genotypes for the improvement of rice productivity.
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Pages:1399-1404
How to cite this article:
CH Prashanth, Gaibriyal M Lal "Genetic variability and association analysis in rice (<em>Oryza sativa </em>l.) ". International Journal of Botany Studies, Vol 6, Issue 5, 2021, Pages 1399-1404
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