Indian Society of Genetics & Plant Breeding

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GENE ACTION FOR CERTAIN QUANTITATIVE CHARACTERS IN GREENGRAM (VIGNA RADIATA (L.) WILCZEK)

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The nature of gene effects for yield and six yield traits in greengram were studied in six
crosses involving four parents through generation mean analysis. The mean data of six
populations (both parents, Ft, BCt, BCz and Fz) were subjected to scaling test. In the
presence of epistasis, six-parameter model was used to detect all type of gene effects. The
analysis indicated that most of characters appeared to be complex in the expression of gene
effects in different crosses. The additive gene effect was important in most crosses for
majority of the traits. The dominance gene action was involved in the expression of yield,
pods/plant, plant height, pod length and dusters/plant in some crosses. Among the digenic
interactions additive x additive and dominance x dominance played important role in the
expression of plant height, branches/plant, dusters/plant, pods/plant and grain yield/plant
in some crosses.
 

Keywords: Greengram, gene effects, generation mean.

Info

Year: 1997
Volume: 57
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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