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Assessment of early-maturing maize hybrids and testing sites using GGE biplot analysis

dc.contributor.authorOyekunle, M.
dc.contributor.authorHaruna, A.
dc.contributor.authorBadu-Apraku, B.
dc.contributor.authorUsman, I.S.
dc.contributor.authorMani, H.
dc.contributor.authorAdo, S.G.
dc.contributor.authorOlaoye, G.
dc.contributor.authorObeng-Antwi, K.
dc.contributor.authorAbdulmalik, R.O.
dc.contributor.authorAhmed, H.O.
dc.date.accessioned2019-12-04T11:10:16Z
dc.date.available2019-12-04T11:10:16Z
dc.date.issued2017-09-07
dc.identifier.citationOyekunle, M., Haruna, A., Badu-Apraku, B., Usman, I.S., Mani, H., Ado, S.G., ... & Ahmed, H.O. (2017). Assessment of early-maturing maize hybrids and testing sites using GGE biplot analysis. Crop Science, 57, 1-9.
dc.identifier.issn0011-183X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2049
dc.descriptionArticle Purchased; Published: 7 Sept. 2017
dc.description.abstractIdentification of outstanding maize (Zea mays L.) hybrids for target environments is complicated by genotype × environment interactions. Thirty-two early-maturity maize hybrids were evaluated at eight locations in Nigeria and six locations in Ghana for 2 yr to (i) identify high-yielding, stable hybrids across locations and/or hybrids specifically adapted to different locations, and (ii) identify ideal test sites for selection of superior hybrids in the two countries. Genotype, country, year, location (country), and their interactive effects were significant (P < 0·01) for grain yield, days to anthesis and silking, anthesis-silking interval, plant and ear aspects, and ears per plant. Mean grain yield of the hybrids ranged from 3177 kg ha−1 for EWH-5 to 4596 kg ha−1 for EWH-29. The genotype main effects plus genotype × environment interaction (GGE) biplot analysis revealed that EWH-29, EWH-8, and EWH-30 did not differ significantly in grain yield and were the most stable hybrids in both countries, whereas EWH-26 and EWH-32 were the most stable hybrids only in Ghana. The GGE biplot analysis identified Samaru, Kafin Soli, and Minjibir in Nigeria and Nyankpala, Damongo, and Fumesua in Ghana as the most discriminating locations. Minjibir (Nigeria) and Nyankpala (Ghana), being most discriminating and representative locations, were considered the ideal testing sites for the respective countries. The type of cultivars evaluated determined the most suitable locations for multilocation testing within Ghana and Nigeria. Whereas hybrids EWH-29, EWH-8, and EWH-30 should be suitable for production in Nigeria, EWH-26 and EWH-32 should be promoted for production in Ghana.
dc.description.sponsorshipDrought Tolerant Maize for Africa
dc.format.extent1-9
dc.language.isoen
dc.subjectMaize
dc.subjectDrought Tolerance
dc.subjectEarly Maturation
dc.subjectGge
dc.subjectMaize Hybrid
dc.subjectGenotypes
dc.subjectGenotype Environment Interaction
dc.titleAssessment of early-maturing maize hybrids and testing sites using GGE biplot analysis
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.affiliationAhmadu Bello University
cg.contributor.affiliationSavanna Agricultural Research Institute, Ghana
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ilorin
cg.contributor.affiliationCouncil for Scientific and Industrial Research, Ghana
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectMaize
cg.iitasubjectPlant Genetic Resources
cg.journalCrop Science
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid86045
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.2135/cropsci2016.12.1014


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