Indian Society of Genetics & Plant Breeding

GENETIC VARIATION FOR HARVEST INDEX AND DEVELOPMENTAL TRAITS IN PIGEONPEA HYBRIDS

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Evaluation of 60 pigeonpea hybrids involving three genetic male sterile lines, 11 and 9
medium and short duration pollinators, revealed importance of both additive and
nonadditive components of genetic variance in the inheritance of harvest index, days to
flowering, plant height, per day production, and reproductive period. The nonadditive
portion was predominant for all the traits except days to flower where additive genetic
variance played a major role. The parents and hybrids were characterized for their genetic
worth through estimates of combining ability effects. It was found that 50 hybrids
significantly exceeded their parents in respect of harvest index which seemed to be an
important attribute for increased vigour of hybrids. The crosses with high harvest index
were associated with either early flowering or shorter plant height or both.
 

Keywords: Pigeonpea, genetic male sterility, harvest index, genetic analysis, developmental characters.

Info

Year: 1993
Volume: 53
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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