Non-hierarchical euclidean cluster analysis for grouping of diverse lentil ( Lens culinaris L. Medik.) genotypes.

摘要

Two hundred forty five diverse genotypes of lentil ( Lens culinaris Medik.) were evaluated in Augmented Block Design during Rabi season 2009-10 and 2010-11 for various quantitative traits, which indicated wide genetic variability for all the traits. Significant genotypic differences were observed for all the quantitative traits studied, indicating the considerable amount of variation among genotypes for each eleven characters. Heritability (broad sense) estimates were high (>88%) for all the quantitative traits except number of primary branches/plant. These 245 diverse genotypes were grouped into 16 distinct clusters by using nonhierarchical Euclidean cluster analysis. Cluster VI contained maximum 36 genotypes followed by cluster IV (31 genotypes), cluster I (25 genotypes), cluster II and XIV having 22 genotypes. The most diverse clusters were cluster XV and IX (34.444) followed by clusters XV and X (30.886), which indicated maximum diversity between the genotypes of these clusters. Cluster IX characterized by high number of secondary branches/plant, number of pods/plant, early maturity and most of the yield related traits, while cluster XV was represented by genotype having extra bold seeded group. The promising genotypes (GM-53, GM-40, L-316, L-6-416, R/5-18, GM-28, GM-212, GM-11, L-324) for seed yield/plant, biological yield, harvest index, number of pods/plant, number of secondary branches/plant and early maturing were identified from different cluster on the basis of better performance, which could be utilized for hybridization programme to produce better recombinants for development of high yielding varieties.