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Evaluation of cowpea mini core accessions for resistance to flower bud thrips Megalurothrips sjostedti Trybom (Thysanoptera: Thripidae)

dc.contributor.authorTogola, A.
dc.contributor.authorBoukar, O.
dc.contributor.authorChamarthi, S.
dc.contributor.authorBelko, N.
dc.contributor.authorTamò, M.
dc.contributor.authorOigiangbe, N.
dc.contributor.authorOjo, J.
dc.contributor.authorIbikunle, M.
dc.contributor.authorFatokun, C.
dc.date.accessioned2019-12-04T11:33:45Z
dc.date.available2019-12-04T11:33:45Z
dc.date.issued2019-04-14
dc.identifier.citationTogola, A., Boukar, O., Chamarthi, S., Belko, N., Tamò, M., Oigiangbe, N., ... & Fatokun, C. (2019). Evaluation of cowpea mini core accessions for resistance to flower bud thrips Megalurothrips sjostedti Trybom (Thysanoptera: Thripidae). Journal of Applied Entomology, 1-10.
dc.identifier.issn0931-2048
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5799
dc.descriptionOpen Access Article
dc.description.abstractThe flower bud thrips, Megalurothrips sjostedti Trybom (Thysanoptera: Thripidae), is an economically important pest of cowpea in sub‐Saharan Africa. Varietal resistance is the most preferred, environmentally friendly, cost‐effective and sustainable option for controlling this pest. The objective of this study was to identify sources of resistance to M. sjostedti among mini core accessions from the largest world cowpea germplasm collection maintained at the International Institute of Tropical Agriculture (IITA). The study was conducted during the 2015 and 2016 cropping seasons where 365 accessions were screened under field conditions. Each accession was rated visually for thrips damage score, flower abortion rate, number of pods per plant and number of thrips per flower. The resistance levels observed in genotypes TVu8631, TVu16368, TVu8671 and TVu7325 were similar to that of the resistant check “Sanzisabinli” (called Sanzi) during both seasons. In addition, 56 mini core genotypes showed moderate resistance to thrips damage. High heritability values were associated with thrips damage scores at 65 days after planting (0.60), percentage of effective peduncles (0.59), flower bud abortion rate (0.59), number of pods per plant (0.51) and number of peduncles with pods (0.5). The accessions identified with good levels of resistance to flower bud thrips will be used in cowpea breeding programs to develop improved resistant varieties.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-10
dc.language.isoen
dc.rightsCC-BY-4.0
dc.subjectGenotypes
dc.subjectCrop Improvement
dc.subjectScreening
dc.subjectHeritability
dc.subjectVarietal
dc.subjectResistance
dc.subjectYield Losses
dc.subjectFields
dc.subjectCowpeas
dc.titleEvaluation of cowpea mini core accessions for resistance to flower bud thrips Megalurothrips sjostedti Trybom (Thysanoptera: Thripidae)
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpGrain Legumes
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationAfrica Rice Center
cg.contributor.affiliationAmbrose Alli University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.creator.identifierAbou TOGOLA: 0000-0001-6155-8292
cg.creator.identifierOusmane: 0000-0003-0234-4264
cg.creator.identifierNouhoun Belko: 0000-0002-1131-6815
cg.creator.identifierManuele Tamò: 0000-0002-5863-7421
cg.creator.identifierChristian Fatokun: 0000-0002-8428-7939
cg.researchthemeBIOTECH & PLANT BREEDING
cg.researchthemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalJournal of Applied Entomology
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid105188
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/jen.12637


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