Year: 2019 | Month: December | Volume 12 | Issue 4
Variability and Path Coefficient Studies for Yield and Yield Related Traits in Rice (Oryza sativa L.)
DOI:10.30954/0974-1712.12.2019.5
Abstract:
The twenty four genotypes of rice (Oryza sativa L.) were evaluated for genetic variability, heritability, genetic advance, correlation and path coefficient analysis considering seventeen quantitative traits. The analysis of variance showed that genotypes differed significantly for all the seventeen traits studied and it is clear from the investigation that the traits like spikelet/panicle, sterile spikelet/panicle, grain weight/panicle exhibiting highest values of phenotypic and genotypic coefficient variation, heritability and genetic advance. Correlation and path analysis study revealed that the traits viz., days to maturity, plant height, effective tillers/plant and spikelet fertility percent demonstrated greater positive direct effect and significant positive correlation with grain yield/plant indicating the usefulness of these trait in selection for enhancing the grain yield.
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