Vol. 12, Issue 5 (2023)

Author(s):
K Thiyagu, M Dhandapani, S Geethanjali, P Sathya, A Shanmugam, K Subrahmaniyan and AP Salini

Abstract:
The 104 F₄ families of the cross OCT 15 X Thirukkattupalli local were used for evaluation of genetic parameters viz., PCV, GCV, Heritability and Genetic advance in summer rice fallow sesame for the seed yield and attributing traits viz., days to 50% flowering, days to maturity, Plant height, number of branches per plant, number of capsules per plant, number of seeds per capsules, and 1000-seed weight. Low PCV and GCV were observed for days to 50% flowering and days to maturity. Moderate PCV and GCV were observed for plant height and number of seeds per capsule. Higher PCV and GCV were observed for number of branches, number of capsules per plant, 1000-seed weight and seed yield. All the traits exhibited higher percentages of heritability. Days to flowering and maturity showed moderate genetic advance, whereas all other traits exhibited higher percentages of genetic advance. Days to maturity and plant height were recorded positive and significant correlation with seed yield. Number of seeds per capsule had a negative correlation with seed yield. Days to maturity and plant height had a positive direct effect on seed yield. It is assumed that traits with higher heritability and genetic advance viz., plant height, number of branches, 1000- seed weight and seed yield were contributed by additive gene action and selection will be effective for fixing the stable lines under summer rice fallow sesame from the cross OCT15 x Thirukkattupalli local.