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Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis

dc.contributor.authorOmoigui, L.O.
dc.contributor.authorKamara, A.Y.
dc.contributor.authorAjeigbe, Hakeem A.
dc.contributor.authorAkinwale, R.O.
dc.contributor.authorTimko, M.P.
dc.contributor.authorOyekunle, M.
dc.contributor.authorBello, L.L.
dc.date.accessioned2019-12-04T11:10:48Z
dc.date.available2019-12-04T11:10:48Z
dc.date.issued2017-11
dc.identifier.citationOmoigui, L.O., Kamara, A.Y., Ajeigbe, H.A., Akinwale, R.O., Timko, M.P., Oyekunle, M. & Bello, L.L. (2017). Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis. Euphytica, 213(11), 244.
dc.identifier.issn0014-2336
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2271
dc.descriptionPublished online: 10 October 2017
dc.description.abstractStriga gesnerioides (Willd) Vatke, is a major destructive parasitic weed of cowpea (Vigna unguiculata (L.) Walp.) which causes substantial yield reduction in West and Central Africa. The presence of different virulent races within the parasite population contributes to significant genotype × environment interaction, and complicates breeding for durable resistance to Striga. A 3-year study was conducted at three locations in the dry savanna agro-ecology of Nigeria, where Striga gesnerioides is endemic. The primary objective of the study was to identify cowpea genotypes with high yield under Striga infestation and yield stability across test environments and to access suitability of the test environment. Data collected on grain yield and yield components were subjected to analysis of variance (ANOVA). Means from ANOVA were subjected to the genotype main effect plus genotype × environment (GGE) biplot analysis to examine the multi-environment trial data and rank genotypes according to the environments. Genotypes, environment, and genotypes × environment interaction mean squares were significant for grain yield and yield components, and number of emerged Striga plants. The environment accounted for 35.01%, whereas the genotype × environment interaction accounted for 9.10% of the variation in grain yield. The GGE biplot identified UAM09 1046-6-1 (V7), and UAM09 1046-6-2 (V8), as ideal genotypes suggesting that these genotypes performed relatively well in all study environments and could be regarded as adapted to a wide range of locations. Tilla was the most repeatable and ideal location for selecting widely adapted genotypes for resistance to S. gesnerioides.
dc.description.sponsorshipKirkhouse Trust
dc.format.extent1-16
dc.language.isoen
dc.subjectCowpeas
dc.subjectAnalysis
dc.subjectVigna Unguiculata
dc.subjectStriga Infestation
dc.subjectGenotypes
dc.subjectBiplot Analysi
dc.subjectStriga Gesnerioides
dc.subjectGge
dc.titlePerformance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpGrain Legumes
cg.contributor.crpMaize
cg.contributor.crpWater, Land and Ecosystems
cg.contributor.affiliationUniversity of Agriculture, Makurdi
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropics
cg.contributor.affiliationObafemi Awolowo University
cg.contributor.affiliationUniversity of Virginia
cg.contributor.affiliationAhmadu Bello University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectCowpea
cg.iitasubjectGenetic Improvement
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Genetic Resources
cg.journalEuphytica
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid91848
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1007/s10681-017-2034-x


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