Correlation and path analysis for growth, pod yield, seed yield and quality characters in cluster bean (Cyamopsis tetragonoloba (L.) Taub.) *

Cluster bean green pod yield per plant showed positive and significant correlation with dry pod yield per plant, green pod yield per plot, number of clusters per plant, plant height both at 45 and 90 DAS, plant spread North-South direction at 45 DAS, stem girth, number of pods per cluster, cluster length and pod length. Dry pod yield per plant showed positive and highly significant association with green pod yield per plant (1.002 and 0.987), green pod yield per plot (0.966 and 0.847), number of clusters per plant (0.997 and 0.800), plant spread East-West direction at 45 DAS (0.416 and 0.403), number of pods per cluster (0.663 and 0.800) and plant height (45 and 90 DAS (0.843, 0.828 and 0.699, 0.546) at both genotypic and phenotypic level, respectively. Seed protein content showed positive and highly significant association with pod breadth (0.452) at genotypic level. Seed endosperm gum content showed negative and highly significant correlation with plant height at 90 DAS (-0.485 and -0.401) at genotypic and phenotypic level, respectively. The path analysis revealed that dry pod yield per plant (0.574 and 0.879), green pod yield per plot (0.377 and 0.057) and dry pod yield per plot (0.242 and 0.055) had high direct effect on green pod yield per plant at both genotypic and phenotypic level, respectively.