Trait Interactions Influencing Yield in Sesame (Sesamum Indicum L.): A Correlation and Path Analytical Approach

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RAKESH PAWAR*, M. SREEVALLI DEVI, D. BHARATHI, M.K. JYOSTHNA AND M. REDDI SEKHAR

Department of Genetics and Plant Breeding, S.V. Agricultural College, ANGRAU, Tirupati-517 502.

ABSTRACT

The present investigation was carried out at dry land farm of S.V Agricultural College, Tirupati, Andhra Pradesh during

Rabi 2023-24. Sixty-four genotypes including checks were evaluated in Augmented block design for 20 DUS traits and 10 yield and yield attributing traits viz., days to 50% flowering, plant height, number of primary branches per plant, number of capsules per plant, capsule length, number of seeds per capsule, 1000-seed weight and seed yield per plant to study character association and the magnitude of direct and indirect effects of yield component traits on seed yield per plant. The association analysis revealed that plant height, number of capsules per plant and showed strong significant and positive correlation with seed yield per plant indicating that yield improvement could be possible through the indirect selection of these traits. The path coefficient analysis has disclosed that an ideal sesame plant should have more plant height followed by more number of capsules per plant to boost seed yield per plant as plant height and number of capsules per plant exhibited high and moderate direct effect on seed yield per plant respectively.

KEYWORDS: Sesamum, Seed yield, Character association, Path analysis, direct and indirect effects.