Genetic analysis of resistance to flower bud thrips (Megalurothrips sjostedti) in cowpea (Vigna unguiculata [L.] Walp.)

Simple item page
cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationUniversity of Ibadanen
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.isijournalISI Journalen
cg.issn0014-2336en
cg.issue1en
cg.reviewStatusPeer Reviewen
cg.subject.iitaPESTS OF PLANTSen
cg.subject.iitaPLANT DISEASESen
cg.subject.iitaGENETIC IMPROVEMENTen
cg.subject.iitaDISEASE CONTROLen
cg.volume165en
dc.contributor.authorOmo-Ikerodah, E.E.en
dc.contributor.authorFatokun, C.A.en
dc.contributor.authorFawole, I.en
dc.date.accessioned2018-02-06T12:14:55Zen
dc.date.available2018-02-06T12:14:55Zen
dc.identifier.urihttps://hdl.handle.net/10568/90820
dc.titleGenetic analysis of resistance to flower bud thrips (Megalurothrips sjostedti) in cowpea (Vigna unguiculata [L.] Walp.)en
dcterms.abstractCowpea is an important legume in sub-Saharan Africa where its protein rich grains are consumed. Insect pests constitute a major constraint to cowpea production. Flower bud thrips (FTh) is thefirst major pest of cowpea at the reproductive stage and if not controlled with insecticides is capable of reducing grain yield significantly. Information on the inheritance of resistance to FTh is required to facilitate breeding of resistant cultivars. The genetics of resistance was studied in crosses of four cowpea lines. Maternal effect was implicated while frequency distributions of the F2 and backcross generations suggest quantitative inheritance. Additive, dominance and epistatic gene effects made large contributions and since improved inbred lines are the desired product, selection should not be too severe in the early generations to allow for desirable gene recom-bination. This study suggested that some of the genes involved in the control of resistance to FTh are different in TVu1509 and Sanzi. Broad sense heritability ranged from 56% to 73%. Choice of maternal parent in a cross will be critical to the success of resistance breeding.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationOmo-Ikerodah, E.E., Fatokun, C.A. & Fawole, I. (2009). Genetic analysis of resistance to flower bud thrips (Megalurothrips sjostedti) in cowpea (Vigna unguiculata [L.] Walp.). Euphytica, 165(1), 145-154.en
dcterms.extentp. 145-154en
dcterms.issued2009
dcterms.languageen
dcterms.subjectfrequency distributionen
dcterms.subjectgene effectsen
dcterms.subjectgeneration means analysisen
dcterms.subjectmegalurothrips sjostedtien
dcterms.subjectquantitative resistanceen
dcterms.subjectvigna unguiculataen
dcterms.typeJournal Article

Files

Collections

IITA Journal Articles