Electronic Journal of Plant Breeding (Dec 2010)
Pattern of diversity based on phenological and productivity traits in chickpea (Cicer arietinum L.)
Abstract
One hundred twenty six Recombinant Inbred Lines (RILs) derived from a cross ICCV-2 x JG 62 along with six checks were evaluated to studythe genetic divergence. Mahalonobis (1936) D2 statistic analysis was used for assessing the genetic divergence among the RIL’s involvingphenological and yield component traits. The 132 genotypes formed 15 clusters and out of which 8 clusters were solitary suggesting the verydiverse nature of 8 RILs from rest of the genotypes. But no distinct grouping of desi and kabuli types were observed indicating reasonably highdegree of recombination between JG 62 and ICCV 2. The two solitary clusters, VIII and X showed their distinctiveness from the other groups asreflected by generally higher magnitude of inter cluster distance values of these two clusters with other clusters and are characterised by meanhigh pod number, seed yield and ideal duration of reproductive phase. As for degree of contribution of each character to divergence, the pods perplant contributed maximum (76.58%).
