Studies on Correlation and Path Analysis of Yield and its Contributing Traits in Sesame (Sesamum indicum)

Abstract

The purpose of the present investigation was to examine the relationships between seed yield and yield-attributing characters in sesame (Sesamum indicum L.) as well as evaluating their direct and indirect effects. Results indicated that number of capsules per plant (0.806) and 1000-seed weight (0.657) showed positive correlation with seed yield  per plant .  Path  coefficient  analysis  indicated  that  number of capsules per plant (0.806) and 1000  seed  weight  (0.111) exhibited  positive  direct  effect  on seed yield. Positive indirect effect was observed through number of branches per plant   via   number of capsules per plant (0.657).  Number of capsules per plant exhibited positive indirect effect via 1000 seed weight (0.111). Since, it showed strong correlation and direct effect on seed  yield  per plant, selecting    for    this    trait    may  leads to improvement of seed yield per plant. Present   study   revealed   that   the   traits   viz., number of capsules per plant and 1000 seed weight association was highly desirable as the improvement in any of the yield components results into overall increase in seed yield. Selection among  genotypes based  on this  analyses  can  be  made  for  further  improvement  in  seed  yield per plant and  its contributing characters.