Combining ability analysis from five-parent diallel sets without reciprocals involving Fl
and F2 generations of Corchorus olitorius L. and C. capsularis L. revealed that both additive
and nonadditive types of gene actions were operating in the inheritance of plant height,
days to flower, fruits/plant, fruit size, seeds/fruit, 10o-seed weight, seed weight/fruit and
seed yield/plant. Partitioning of dominance variance indicated that a considerable part of
dominance gene action was due to the asymmetry of dominant gene distribution among
the parents. The results also pointed out that additive variance was the major genetic
component for days to flower, pod length, lOO-seed weight and seed yield/plant in C.
olitorius and for plant height as well as seeds/capsule in C. capsularis. Narrow sense
heritability estimates for these traits were high except in one case. Among all the parents,
JRO 7835 was identified as a promising general combiner for seed yield and its
Keywords: Combining ability, Corchorus olitorius, Corchorus capsularis.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
BHASWATI RAY AND T. K. MAJUMDAR info_circle