Indian Society of Genetics & Plant Breeding

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MORHOLOGICAL STUDIES ON INTERGENERIC AND INTERSPECIFIC HYBRIDS OF SOME GRAIN LEGUMES

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For the first time intergeneridinterspeficic hybrids between Cajanus cajan x Vigna
mungo, Vigna unguiculata x Vigna mungo and Vigna' unguiculata x Lablab purpureus
have been produced. In general all the hybrids resembled female parents with some
altered morphological traits. All the hybrids exhibited delayed flowering and maturity.
V. unguiculata x V. mungo hybrid did not flower and perished in vegetative phase
after producing few buds. C. cajan x V. mungo hybrid was highly sterile which
produced s,ome pods with non- viable seeds. V. unguiculata x L. purpureus hybrid
produced only two flowers and single small pod with two seeds which upon sowing
produced two F2 plants, which died at an early stage. The character expressions of
Ft's surpassing both the parents either in positive or negative direction were
comparable to transgression effect. Resemblance to either of the parents and
intermediate characters expressions were attributed to dominance and partial
dominance gene action respectively.
 

Keywords: Cajanus cajan, Vigna unguiculata, Vigna mungo, Lablab purpureus, wide hybrids.

Info

Year: 1998
Volume: 58
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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