PJB-2003-27
EXPLOITATION OF VIGNA MUNGO (L.) HEPPER GERMPLASM USING MULTIVARIATE ANALYSIS BASED ON AGRONOMIC TRAITS
ABDUL GHAFOOR AND ZAHOOR AHMAD
Abstract
Twenty one genotypes representing a broad based germplasm were selected for evaluation using multivariate analyses for two years. High genetic variance was observed for plant height, maturity, pods, seed weight, biomass, grain yield and harvest index. The genotypes, Mash 3, 9039, 9067, 9010, 9026, 9092, 9005, 9025 and 9020 were observed early and uniform in maturity. First four PCs contributed 80.0% of variation during 1998 and 80.9% during 1999. Five yield contributing traits, i.e., branches, pods, pod length, biomass and grain yield were observed important for first component during both the years. PC2 was more related to maturity traits rather than reproductive traits. Five genotypes were separated from others during both the years. Cluster analysis revealed that only a portion of genetic diversity has been exploited, and it is suggested to broaden the genetic base of cultivated blackgram involving diverse parents in breeding programme for future use.
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