Assessment of genetic diversity in interspecific derivatives of chickpea (Cicer arietinum L.)
Abstract
In the present investigation, a set of 90 genotypes, derived from 4 different crosses viz., I: PBG5 × ILWC229; II: BGD72 × ILWC229; III: PBG5 × ILWC246 and IV: BGD72 × ILWC246 were evaluated to estimate the genetic diversity for productivity traits during 2020-21 and 2021-22 at Punjab Agricultural University, Ludhiana. The genetic diversity analysis grouped 90 genotypes into 5 clusters. Cluster I had the maximum number of genotypes, followed by cluster II. The maximum inter-cluster distance was observed between clusters II and V and the traits like seed yield plot-1, 100-seed weight, and biological yield plot-1 in cluster II were having maximum cluster mean. The derivatives from cluster II were superior with respect to traits like seed yield plot-1, biological yield plot-1, 100-seed weight, days to 50% flowering and can serve as potential donors to obtain transgressive segregants.
Keywords
Genetic diversity, Productivity traits, Seed weight, Transgressive segregants