P40: Rate of seed transmission of bean common mosaic virus (BCMV) in successive generations in cowpea

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationUniversity of Nigeriaen
cg.contributor.initiativePlant Health
cg.creator.identifierP. Lava Kumar: 0000-0003-4388-6510en
cg.howPublishedFormally Publisheden
cg.identifier.iitathemePLANT PRODUCTION & HEALTHen
cg.placeMurcia, Spainen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.iitaDISEASE CONTROLen
cg.subject.iitaCOWPEAen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaGRAIN LEGUMESen
cg.subject.iitaPLANT DISEASESen
cg.subject.iitaPLANT HEALTHen
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactPlatformNutrition, Health and Food Security
cg.subject.sdgSDG 2 - Zero hungeren
dc.contributor.authorDauda, N.en
dc.contributor.authorAjamu, D.en
dc.contributor.authorBaiyeri, P.K.en
dc.contributor.authorUgwuoke, K.I.en
dc.contributor.authorKumar, P.L.en
dc.date.accessioned2025-04-16T09:20:14Zen
dc.date.available2025-04-16T09:20:14Zen
dc.identifier.urihttps://hdl.handle.net/10568/174217
dc.titleP40: Rate of seed transmission of bean common mosaic virus (BCMV) in successive generations in cowpeaen
dcterms.abstractThis study aimed to understand the effect of genotype, time of infection, and seed morphometrics on seedborne virus infections in cowpea (Vigna unguiculata) transmission and the eventual impact of seed-borne viruses on cowpea yield compared to uninfected control. Experiments were performed using a Potyvirus species, bean common mosaic virus-blackeye (BCMV-BlCM). This virus is endemic in West Africa. Nine cowpea genotypes raised in 6-inch pots and maintained in an insect-proof screenhouse were mechanically inoculated at 7, 21, and 40 days after planting (DAP). Seeds obtained from both the inoculated and uninoculated control groups were planted, and the seedlings were examined for seedborne infection based on symptoms and RT-PCR diagnostics. All identified seed-borne plants were maintained until harvest and re-evaluated for seed transmission and the impact of seedborne viruses on cowpea yield in successive generations. In the first generation, percent BCMV seed transmission rates of 7.9, 4.6, and 44.4 were observed in genotypes RS018 inoculated at 21 DAP, RS075 (7 DAP), and RS012 (DAP). In the second generation, 35.1%, 0%, and 34.1% transmission rates were reported for the same genotypes. Significant reduction in seed yield and prolonged days to phenology was observed in seedborne plants when compared to uninfected controls. Early-stage protection against virus infection will reduce the risk of seed transmission in cowpeas.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationDauda, N., Ajamu, D., Baiyeri, P.K., Ugwuoke, K.I. & Kumar, P.L. (2025). P40: Rate of seed transmission of bean common mosaic virus (BCMV) in successive generations in cowpea. In Book of Abstracts, Annals of Applied Biology Conference on International Advances in Plant Virology April 8th-11th 2025, Murcia, Spain. (p 135).en
dcterms.extentp. 135en
dcterms.issued2025en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherAssociation of Applied Biologists Virology Groupen
dcterms.subjectcowpeasen
dcterms.subjectseed transmissionen
dcterms.subjectseedsen
dcterms.subjectmorphometricsen
dcterms.subjectgenotypesen
dcterms.subjectvirusesen
dcterms.typeAbstract

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