Genetic Variability and Character Association of T-Aman Rice (Oryza Sativa L) - Abstract
Twenty five genotypes were evaluated for yield and yield contributing characters to observe their variability, associations and direct and indirect effect on yield during Amon season, 2010. Grain panicle-1 and filled grain panicle-1 had high genotypic variance, high heritability, high genetic advance and high genotypic coefficient of variation. Tiller hill-1, plant height and thousand grain weights showed significant positive association with grain yield. Path coefficient analysis also revealed that, tiller hill-1, thousand grain weight and grain panicle-1 had higher direct effects on yield. Genetic variability, correlation and path analysis revealed that tiller hill-1, plant height and thousand grain weights are the most important yield components in rice. Therefore, from the present study it could be suggested that emphasize should be given on these characters for the selection of genotypes for higher grain yield in transplanted Amon rice.