Evaluation of a novel technique for screening cowpea varieties for resistance to the seed beetle Callosobruchus maculatus

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dc.creatorDeverau, A.D.
dc.creatorJackai, L.E.N.
dc.creatorOlusegun, T.B.
dc.creatorAsiwe, A.N.J.
dc.date2002
dc.date2019-03-03T05:54:47Z
dc.date2019-03-03T05:54:47Z
dc.date.accessioned2026-06-27T15:50:15Z
dc.descriptionA novel method for screening cowpea varieties for resistance to the postharvest insect pest Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) was compared to conventional screening techniques at the International Institute for Tropical Agriculture (IITA) laboratory in Ibadan, Nigeria. The new technique assesses seed resistance by measuring larval feeding activity via electronic sensors. Initial smallscale trials demonstrated that the method could be successfully applied in the laboratory with a potential saving in time and effort. The results were used to design a larger scale device that was able to screen 32 varieties of cowpea in 1 9 days using a methodology designed to identify only the most resistant cowpea varieties. Resistant varieties were identified but some problems were encountered with analysis of the results. Practical application of the technique for large-scale resis tance screening is discussed.
dc.identifierhttps://hdl.handle.net/10568/100026
dc.identifier.urihttp://hdl.handle.net/123456789/114928
dc.languageen
dc.rightsOpen Access
dc.sourceDeverau, A.D., Jackai, L.E.N., Olesegun, T.B. & Asiwe, A.N.J. (2002). Evaluation of a novel technique for screening cowpea varieties for resistance to the seed beetle Callosobruchus maculatus. In C.A. Fatokun, S.A. Tarawali, B.B. Singh, P.M. Kormawa and M. Tamo, Challenges and opportunities for enhancing sustainable cowpea production. Ibadan, Nigeria: IITA, (p.136-146).
dc.subjectlegumes
dc.subjectnutrition
dc.subjectfoods
dc.subjectcowpeas
dc.subjectinfestation
dc.subjectbiomonitoring
dc.subjectscreening
dc.titleEvaluation of a novel technique for screening cowpea varieties for resistance to the seed beetle Callosobruchus maculatus
dc.typeBook Chapter

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Instituto Internacional de Agricultura Tropical (IITA)