Studies on Characters Association and Path Analysis for Seed Yield and its Components in Pigeonpea

An investigation was carried out in pigeonpea to understand the association among the yield components and their direct and indirect effect on the seed yield. The estimates of genotypic correlation co-efficient in general were higher than their corresponding phenotypic correlation co-efficients indicating strong inherent association among the traits. Characters association studies indicated that number of pods, secondary branches per plant, plant height, primary branches per plant showed significantly positive correlation with seed yield at genotypic and phenotypic levels. Path co-efficient analysis revealed that number of pods, secondary branches per plant, plant height, and primary branches per plant were the most important character which can be strategically used to improve yield in pigeonpea. The study was carried out during 2009-10 to 2010-11 under International Central Research Institute for Semi Arid Tropics funded project at Department of Agricultural Botany, Marathwada Krishi Vidyapeeth, Parbhani.