Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationUniversity of Ibadanen
cg.contributor.affiliationArba Minch Universityen
cg.contributor.crpMaize
cg.contributor.donorAfrican Unionen
cg.contributor.donorCGIAR Trust Funden
cg.contributor.donorBill & Melinda Gates Foundationen
cg.contributor.initiativeAccelerated Breeding
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.creator.identifierAbebe Menkir: 0000-0002-5907-9177
cg.creator.identifierWende Mengesha: 0000-0002-2239-7323
cg.creator.identifierSILVESTRO MESEKA: 0000-0003-1004-2450
cg.creator.identifierMelaku Gedil: 0000-0002-6258-6014
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1080/15427528.2021.1979156en
cg.identifier.iitathemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journalen
cg.issn1542-7528en
cg.issue4en
cg.journalJournal of Crop Improvementen
cg.reviewStatusPeer Reviewen
cg.subject.iitaAGRONOMYen
cg.subject.iitaDISEASE CONTROLen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaMAIZEen
cg.subject.iitaPLANT BREEDINGen
cg.subject.iitaPLANT PRODUCTIONen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 1 - No povertyen
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume36en
dc.contributor.authorZebire, D.en
dc.contributor.authorMenkir, A.en
dc.contributor.authorAdetimirin, Victor O.en
dc.contributor.authorMengesha Abera, W.en
dc.contributor.authorMeseka, S.K.en
dc.contributor.authorGedil, Melaku Aen
dc.date.accessioned2022-12-19T11:43:00Zen
dc.date.available2022-12-19T11:43:00Zen
dc.identifier.urihttps://hdl.handle.net/10568/126076
dc.titleEfficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groupsen
dcterms.abstractIdentifying efficient testers for separating maize (Zea mays L.) inbred lines into heterotic groups can facilitate the development of superior hybrids. Striga-resistant yellow-maize inbred lines developed at the International Institute of Tropical Agriculture (IITA) do not have well established heterotic groups. This study was conducted to identify efficient testers for classifying yellow-maize inbred lines into heterotic groups. Thirty Striga-resistant inbred lines were crossed with three testers having varying levels of resistance to Striga. A trial comprising 90 testcrosses and two hybrid checks was conducted at two locations in Nigeria for 2 years under Striga-infested and non-infested conditions. The approach that involved specific combining ability (SCA) effects and mean grain yields was found to be more efficient than the heterotic group’s specific and general combining ability (HSGCA) grouping method in separating the 30 inbred lines into three heterotic groups. The tolerant and resistant testers were highly efficient in grouping the inbred lines into heterotic groups under Striga-infested and non-infested conditions using the two approaches. Striga-resistant yellow inbred lines assigned to two of the three major heterotic groups could be used as parents for developing superior hybrids and/or synthetics and for generating source populations for developing new maize inbred lines.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.available2021-09-23
dcterms.bibliographicCitationZebire, D., Menkir, A., Adetimirin, V., Mengesha, W., Meseka, S.K. & Gedil, M. (2022). Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups. Journal of Crop Improvement, 36(4), 473-493.en
dcterms.extent473-493en
dcterms.issued2022-07-04
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherInforma UK Limiteden
dcterms.subjectmaizeen
dcterms.subjectstriga hermonthicaen
dcterms.subjectdisease resistanceen
dcterms.subjecthybridsen
dcterms.subjectvarietiesen
dcterms.typeJournal Article

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