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Induced mutations of winged bean in Ghana

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by: Klu, G.Y.P.; Quaynor-Addy, M.; Dinku, E.; Dikumwin, E. (National Nuclear Research Institute,Ghana Atomic Energy Commission, Legon (Ghana))

Source/Report: Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna (Austria); 36 p; ISSN 1011-260X; Worldcat; Jul 1989; p. 15-16; INIS-XA–406; 3 refs, 1 tab

Publ. Year: 1989

Winged bean (Psophocarpus tetragonolobus (L.) D.C.) was introduced into Ghana about two decades ago and not long after a high quality baby food was compounded from it. Germplasm collections are established at the Kade Agricultural Research Station of the University of Ghana and the University of Cape Coast. In 1980 a mutation breeding project was initiated at the University of Cape Coast under FAO/IAEA research contract and among various mutants a single erect stem mutant, a multiple branched bush type and a mutant with extra long pods were obtained. A similar programme was started at the National Nuclear Research Centre Kwabenya in 1982. Seeds of accessions UPS 122 and Kade 6/16 were gamma irradiated (100-400 Gy). In M2 a mutant was obtained that did not flower throughout a growing period of five months. This mutant had very few leaves but developed an underground tuber weighing ca. 100 g. The parent, UPS 122, although normally tuber producing did not form tubers at Kwabenya within the period studied. In M3, mutants with variations in seed size and seed coat colour have been detected

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