Indian Society of Genetics & Plant Breeding

Inheritance of morphological traits and pod features in groundnut (Arachis hypogaea L.)

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TMV-2, a commercially cultivated Spanish bunch (ssp.
fastigiata) variety on treatment with ethyl methane
sulphonate (0.2%) had earlier resulted in a subspecific
mutant i.e. narrow leaf mutant (NLM) with Virginia type
(ssp. hypogaea) habit and narrow leaflets. TMV-2 and its
mutant NLM differ from one another in many
morphological traits. To know the inheritance of
morphological traits, both direct (TMV-2 x NLM) and
reciprocal (NLM x TMV-2) crosses were made during the
rainy season 2001 and studied for their behaviour in
subsequent generations viz., F1, F2 and F3 during the postrainy 2001, rainy 2002 and post-rainy 2002 seasons,
respectively. The results indicated that growth habit, mainstem flowering, branching pattern, leaflet shape are under
the control of two genes each, while albinism, pod beak,
pod constriction and pod size are under the control of
three genes each with different gene action.

Keywords: Inheritance, morphological traits, pod features, groundnut (A. hypogaea L.)


Year: 2008
Volume: 68
Issue: 2
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


M. V. C. Gowda and Girija info_circle

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