Evaluation of four cowpea lines for bruchid (Callosobruchus maculatus) Tolerance

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dc.contributor.authorAmusa, O. D.
dc.contributor.authorOgunkanmi, L. A.
dc.contributor.authorBalogun, K. A.
dc.contributor.authorOjobo, O. A.
dc.date.accessioned2020-01-30T11:59:43Z
dc.date.available2020-01-30T11:59:43Z
dc.date.issued2013
dc.descriptionStaff publicationsen_US
dc.description.abstractCowpea, an important legume in many developing countries, is face by varieties of biotic stresses. Among them is the infestation of stored grains by Callosobruchus maculatus, an insect pest capable of causing high grain loss both in quantity and quality. However, resistant genotypes were developed to reduce the damages on stored seed grains by this insect pest. The study evaluated the level of resistance in four cowpea genotypes collected from the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. These cultivars were infested with bruchids for three days in four replicates. Comparative data were then collected from the samples study for analysis. This study showed that there was a positive perfect correlation between percentage pest tolerance and the number of undamaged seeds. The study also showed that most of the resistant genotypes were susceptible with TVx 3236 being the most susceptible. IT99K-494-6 and IT84S-2246-4 suggested in earlier literatures to be resistant to bruchid attack were also susceptible. However, IT81D-994 showed a moderate tolerance to the infestation with percentage pest tolerance of 60. It is therefore imperative that bruchid tolerance evaluation be done periodically on released resistant genotypes to ascertain the stability and durability of their resistance against bruchid infestation.en_US
dc.identifier.citationAmusa O.D., Ogunkanmi, L.A., Bolarinwa, K.A. and Ojobo, O. (2013). Evaluation of four cowpea lines for bruchid (Callosobruchus maculatus) Tolerance. Journal for Natural Sciences Research, 3(11): 46-52en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/7585
dc.language.isoenen_US
dc.publisherUniversity of North Carolina, USAen_US
dc.relation.ispartofseriesJournal for Natural Sciences Research;Vol.3(11)
dc.subjectCowpeaen_US
dc.subjectCallosobruchus maculatusen_US
dc.subjectPest toleranceen_US
dc.subjectPest infestationen_US
dc.subjectSusceptibilityen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Biology::Cell and molecular biologyen_US
dc.titleEvaluation of four cowpea lines for bruchid (Callosobruchus maculatus) Toleranceen_US
dc.typeArticleen_US
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