Vol. 11, Issue 1 (2022)

Author(s):
S Sasipriya, K Parimala, M Balram and KB Eswari

Abstract:
A field study was carried out to study the genetic parameters, correlation and path analysis for yield and its component traits in sesame. Among the various quantitative characters studied, the trait 1000 seed weight exhibited higher genotypic and phenotypic coefficient of variation and it exhibited the scope of genetic improvement through direct selection. Moderate estimates of genotypic and phenotypic coefficients of variation were observed for the characters viz., days to 50% flowering, plant height, number of branches per plant, number of capsules per plant, number of seeds per capsule and seed yield per plant. It indicating the accountable utility of these traits in selection programme. Heritability estimates were observed to be high for all the and reveals that these traits are governed by additive gene action. Genetic advance as per cent of mean was high for all the traits except capsule length suggesting the scope of improvement for these traits through simple selection. Seed yield per plant had positive association with number of capsules per plant, 1000 seed weight, number of branches per plant and number of seeds per capsule at genotypic and phenotypic level. Path coefficient analysis reveals the considerable positive direct effect on seed yield which was exerted by number of capsules per plant, 1000 seed weight, number of branches per plant and number of seeds per capsule. These characters can be considered as a criterion in breeding programmes for improving seed yield in sesame.