Assessment of Genetic Diversity, Correlation and Path Coefficients Analysis in Sesame (Sesamum indicum L.)
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Abstract
Knowledge of variability, correlation and path coefficient analysis is essential for crop improvement procedures. In this study, 54 sesame genotypes were planted in a randomized complete block design with three replications to analyze genetic diversity, correlation and path analysis in sesame. Eleven characters were collected and analyzed. The analysis of variance indicated a significant variation among the genotypes for 11 characters. Days to 50% flowering, days to maturity, height of first capsule bearing node, number of primary branches per plant, capsule length, capsule width, number of seeds per capsule and 1000 seed weight revealed high heritability values. Moderate heritability values were observed for plant height, number of capsules per plant and seed yield per plant. The number of primary branches per plant, number of capsules per plant and number of seeds per capsule were strongly correlated with seed yield per plant. Moreover, path coefficient analysis demonstrated that number of primary branches per plant (0.493), number of capsules per plant (1.833) and number of seeds per capsule (0.448) had a positive direct effect on seed yield. These traits may serve as selection criteria for increasing the yield of sesame.
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References
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