Breeding for resistance to Striga and Alectra in cowpea

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dc.creatorSingh, B.B.
dc.creatorEmechebe, A.M.
dc.date1991
dc.date2019-06-25T17:08:59Z
dc.date2019-06-25T17:08:59Z
dc.date.accessioned2026-06-27T15:59:30Z
dc.descriptionAn outline is given of the progress made in a systematic breeding programme set up in Nigeria to develop improved cowpea cultivars with combined resistance to Striga gesnerioides and Alectra vogelii along with multiple disease and insect resistance. Several sources of resistance to both parasitic weeds have been identified. Of these, B301, a land race from Botswana has shown complete resistance to S. gesnerioides and A. vogelii. This was crossed with a susceptible cultivar, IT84S-2246-4, which is resistant to aphids, bruchids, thrips and 10 diseases and has a high yield potential. The F1 plants were back-crossed with cv. IT84S-2246-4 and segregating populations were screened for resistance to S. gesnerioides, A. vogelii and various insects and diseases. Several F6 breeding lines have now been developed which look very similar to cv. IT84S-2246-4, with combined resistance to S. gesnerioides, A. vogelii, aphids, bruchids, thrips and a variety of diseases Parasitic plant
dc.descriptionstriga gesnerioides
dc.descriptionplant breeding
dc.descriptionweeds
dc.descriptionalectra
dc.descriptionvigna unguiculata
dc.descriptionplant genetics
dc.identifierhttps://hdl.handle.net/10568/101701
dc.identifier.urihttp://hdl.handle.net/123456789/119433
dc.languageen
dc.rightsLimited Access
dc.sourceSingh, B.B. & Emechebe, A.M. (1991). Breeding for resistance to Striga and Alectra in cowpea. Proceedings of the 5th international symposium of parasitic weeds, Nairobi, Kenya, 24-30 June 1991. Kenya: IITA, (p. 303-305).
dc.subjectparasitic plants
dc.subjectstriga gesnerioides
dc.subjectplant breeding
dc.subjectweeds
dc.subjectalectra
dc.subjectvigna unguiculata
dc.subjectplant genetics
dc.titleBreeding for resistance to Striga and Alectra in cowpea
dc.typeConference Paper

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Instituto Internacional de Agricultura Tropical (IITA)