Association analysis in the Inter subspecific crosses of Cowpea (Vigna unguiculata (L.) Walp.) and Yard long bean (Vigna unguiculata (L.) Walp. spp. sesquipedalis)

Thirty hybrids involving six cowpea genotypes and five yard long bean and cowpea were evaluated and subjected to correlation and path analyses. The characters viz., number of clusters per plant, number of pods per cluster and 100 grain weight were significantly positive correlation with single plant yield. The direct effect of number of clusters per plant and 100 grain weight on single plant yield was high. Number of pods per clusters and number of seeds per pod recorded moderate and low level direct effect on single plant yield. Hence the traits, number of clusters per plant, 100-grain weight and number of pods were considered as selection indices for yield improvement programme.