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Multi-trait selection index for superior agronomic and tuber quality traits in bush yam (Dioscorea praehensilis Benth.)

dc.contributor.authorAdewumi, A.S.
dc.contributor.authorAsare, P.A.
dc.contributor.authorAdejumobi, I.I.
dc.contributor.authorAdu, M.O.
dc.contributor.authorTaah, K.J.
dc.contributor.authorAdewale, S.
dc.contributor.authorMondo, J.
dc.contributor.authorAgre, A.P.
dc.date.accessioned2023-04-11T08:28:35Z
dc.date.available2023-04-11T08:28:35Z
dc.date.issued2023-02-26
dc.identifier.citationAdewumi, A.S., Asare, P.A., Adejumobi, I.I., Adu, M.O., Taah, K.J., Adewale, S., ... & Agre, P.A. (2023). Multi-trait selection index for superior agronomic and tuber quality traits in bush yam (Dioscorea praehensilis Benth.). Agronomy, 13(3): 682, 1-16.
dc.identifier.issn2073-4395
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8122
dc.description.abstractDioscorea praehensilis Benth. is a semi-wild yam species and a valuable source of resistance trait genes. To access the agronomic and tuber quality performance, eleven quantitative phenotypic traits were used to discriminate and identify promising accessions among 162 accessions of D. praehensilis collected in Ghana. Significant and high genetic variability (p < 0.001) for all eleven quantitative traits was found among the evaluated accessions. Moderate broad-sense heritability (H2) (30–60%) was observed for all the evaluated quantitative traits except the response to YMV and tuber hardness. The accessions were clustered into three groups; each cluster displayed genotypes with good potentiality for the different traits evaluated. Path coefficient analysis revealed positive contributions (p < 0.01) of the number of tubers per plant, tuber length, tuber width, stem internode length, number of internodes, and tuber flesh hardness to the total tuber weight per plant. Through the multi-trait genotype–ideotype distance index (MGIDI), 24 accessions were identified from the 162 evaluated accessions as top-ranking and could be used as progenitors for trait introgression. The results of this study provide insight for future yam breeding and improvement programs in West Africa.
dc.description.sponsorshipEuropean Union Commission
dc.description.sponsorshipAfrican Union
dc.format.extent1-16
dc.language.isoen
dc.subjectDioscorea
dc.subjectQuantitative Trait Loci
dc.subjectBreeding
dc.subjectGenotypes
dc.subjectGhana
dc.titleMulti-trait selection index for superior agronomic and tuber quality traits in bush yam (Dioscorea praehensilis Benth.)
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversity of Cape Coast
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Florida
cg.contributor.affiliationUniversité Evangélique en Afrique, Democratic Republic of the Congo
cg.contributor.affiliationConsultative Group on International Agricultural Research
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidADEWUMI:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.journalAgronomy
cg.notesOpen Access Journal; Published online: 26 Feb 2023
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.3390/agronomy13030682
cg.iitaauthor.identifierAdeyinka Adewumi: 0000-0002-5981-1882
cg.iitaauthor.identifieridris adejumobi: 0000-0002-6533-0612
cg.iitaauthor.identifierJean Mondo: 0000-0001-7197-6551
cg.iitaauthor.identifierPaterne AGRE: 0000-0003-1231-2530
cg.futureupdate.requiredNo
cg.identifier.issue3: 682
cg.identifier.volume13


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