Character Association and Path Coefficient Analysis for Yield Component Traits in Rice (Oryza sativa L.) Under Moisture Stress Condition at Vegetative Stage

Chandrashekhar Haradari and Shailaja Hittalmani
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Shailaja Hittalmani: Department of Genetics and Plant Breeding, India

Current Trends in Biomedical Engineering & Biosciences, 2017, vol. 2, issue 5, 78-81

Abstract: Present study was attempted with forty six F3 families to trace the associations among twelve yield component characters under moisture stress condition at vegetative growth stage in rice during 2013. Grain yield per plant showed significant positive association with productive tillers per plant, filled spikelet per panicle and harvest index and significant negative association with days to flowering and days to maturity at both genotypic (rg) and phenotypic (rp) levels. Path coefficient analysis exhibited the positive direct effect on grain yield per plant via days to flowering, productive tillers per plant, spikelet fertility and 100 grain weight. In total, four characters viz., productive tillers per plant, filled spikelets per panicle, spikelet fertility and harvest index showed highly significant positive correlation coefficients along with high direct effects on grain yield per plant indicating selection based on these characters could be very effective in selecting high yielding genotypes under moisture stress condition at vegetative stage stress in rice.

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Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:adp:jctbeb:v:2:y:2017:i:5:p:78-81

DOI: 10.19080/CTBEB.2017.02.555597

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