Journal of FARM SCIENCES, Vol 35, No 4 (2022)

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Genetic correlation and path coefficient analysis studies in advanced breeding lines of sesame (Sesamum indicum L.)

HEMANTH S, Laxmi C Patil, Vanishree **, Shalini N Huilgol

Abstract


Abstract: A total of thirty-four advanced breeding lines of sesame were evaluated in a randomized block design with two replications for fifteen traits during summer 2022 along with four checks viz., DS-5, DSS-9, JTS-8, TKG-22 to study the genetic correlation and path analysis for yield and its component traits in sesame. Character association studies revealed that seed yield exhibited highly significant positive association with number of capsules on main stem, oil content and yield per plant at phenotypic level, where as significant negative association with days to fifty per cent flowering and days to maturity. These characteristics were used as selection criteria for higher yield. However, there was a negative significant association between oil content with days to 50 per cent flowering and days to maturity. Number of productive capsules per plant exhibited highly significant positive association with number of primary branches per plant, number of secondary branches per plant and number of productive branches per plant. The path coefficient analysis exhibited that seed yield per plant had highest direct effect on seed yield.The traits viz. number of productive capsules per plant followed by days to maturity, number of secondary branches per plant, days to fifty per cent flowering, internodal lengthand capsule length showed negative direct effect on seed yield. As a result, direct selection for this trait would be successful.

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