VARIATION IN BLACKGRAM (VIGNA MUNGO (L.) HEPPER) X GREEN GRAM (VIGNA RADIATA (L.) WILCZEK) DERIVED GENEPOOL

Abstract

Thirty-two elite true-breeding lines of a black gram (HPU 27) x green gram
(I?IMS 3) cross alongwith checks were evaluated in a randomized block design
to study the nature of variation with respect to seed yield and 14 other traits.
Analysis of variance revealed significant genotypic Differences for aN the traits.
Phenotypic and genotypic coefficien~ of variation were high for seed yield/plant,
biological yield/plant. clusters/plant. pods/plant. 1OQ-seed weight, seed crushing
hardness and per cent sulphur. Heritability estimates were high (>50%) for
100-seed weight, protein content, pod length seeds/pod and seed crushing
hardness. The recombinant derivatives, MM 14, MM 24, MM 30 and MM 31
surpassed the parent(s) for seed yield and some of the other traits studied.