Path coefficient analysis of dolichos bean (Lablab purpureus L.) genotypes

Abstract

The investigation was carried out at All India Coordinated Research Project on Vegetable Crops, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar (MS), which was conducted during the year 2018-19 with an objectives to assess the direct and indirect effect of traits on fresh pod yield. Path coefficient analysis of M3 generation revealed that the number of fresh pod per vine exhibited high positive direct effect on pod yield followed by fresh pod shelling percentage, average weight of fresh pod, days to fresh pod harvest, number of locules per fresh pod, leaflet length, number of nodes per raceme, raceme length, number of buds per nodes, fresh pod width, and fresh seed length at phenotypic level, while fresh seed yield per vine exhibited high positive direct effect on fresh pod yield followed by days to fresh pod harvest, number of seeds per fresh pod, number of fresh pods per vine, leaf length, fresh 100 seed weight, fresh seed length, number of nodes per raceme, number of buds per nodes, pod setting per cent, fresh pod width and average weight of fresh pod at genotypic level. Therefore the characters displayed direct positive effect on fresh pod yield per hectare could be considered in selection criteria for increasing fresh pod yield.