Year: 2017 | Month: August | Volume 10 | Issue 4
Grain Yield Components Analysis in Locally Adapted Rice Varieties
Abstract:
Analysis of variance of eighteen locally adapted rice varieties indicated that all the varieties were significantly different with respect to all the sixteen quantitative characters which were studied. Biological yield plant-1, grain yield plant-1, number of effective tillers plant-1 and 100-grain weight had recorded high PCV, GCV, heritability and genetic advance as percent of mean. Grain yield plant-1 had a significant and positive association with biological yield plant-1, days to maturity, days to 50% flowering, leaf blade width, flag leaf width, number of effective tillers plant-1, leaf blade length and panicle length both at phenotypic and genotypic level. The path analysis revealed that 100-grain weight, number of effective tillers plant-1, leaf blade width, days to maturity, harvest index, days to 50% flowering, plant height and flag leaf length shows positive and direct effect on grain yield plant-1 at genetic level. Present study suggest that leaf blade width, number of effective tillers plant-1, days to maturity and 100-grain weight should be given more emphasis during selection of parental lines for high yielding variety.
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