2 research outputs found
Assessment of the genetic diversity of groundnut (Arachis hypogaea L.) genotypes for kernel yield
The current study was conducted to determine the genetic diversity present among the popular varieties and advanced
cultures of groundnut. Genotypic correlation between single plant yield with number of pegs/plant and number of
pods/plant was significant and positive. High heritability along with high genetic advance as a percentage of mean
was found for plant height, no. of branches/plant, no. of pegs/plant, no. of pods/plant, hundred kernel weight and pod
yield/plant. The 46 genotypes were grouped into five clusters based on D2
analysis. The highest intra-cluster distance
was recorded for cluster VI followed by clusters II, I, III and V. Maximum inter-cluster distance was observed between
clusters IV and V followed by clusters II and V. Minimum inter-cluster distance was observed between clusters I and
II. PCA was used to estimate the relative contribution of various traits to the total variability. Three components (PC1,
PC2 and PC3) were found to have more than one eigenvalue and they accounted for 67.23 per cent of the variability
of the genotypes used