Genetic Variability in Yield Attributes of LentilGenotypes under New Alluvial Zone

摘要

The experiment was conducted under new alluvial zone in West Bengal to evaluate the heritability for yield components and its impact on seed yield in 10 diverse genotypes of Lentil. In consideration of two successive years, the significant hierarchy was shown in 2~(nd) year for the characters except in days to 1~(st) flowering. ASHA and WBL-77 were effective for earliness in maturity among all genotypes. The maximum growth rate was observed in K-75 and KLS-218. The different varieties showed high significant variations in 1000 seed weight with top most effect in PRE-COZ. Interaction of two factors i.e variety (V) x year (Y) showed a significant variation in plant height and pod number, as well as seed yield through it, was non-significant in days to 1~(st) flowering, maturity and seed weight. Results indicated that the genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) showed the genetic influence of these morphological traits. The heritability (h~(2)%) in addition to high genetic advance as percentage of mean was >20% for most of the characters indicated the influence of additive gene. In observation of the correlation matrix, the total parameters maintained two distinct groups considering plant growth parameters and direct yield attributing traits. A negative or non-significant relationship was followed in between these groups of growth and yield traits though the strong positive correlation was followed within diverse traits of each group.