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Diversity, trait preferences, management and utilization of yams landraces (Dioscorea species): an orphan crop in DR Congo

dc.contributor.authorAdejumobi, I.I.
dc.contributor.authorAgre, A.P.
dc.contributor.authorOnautshu, O.D.
dc.contributor.authorAdheka, J.G.
dc.contributor.authorBambanota, M.G.
dc.contributor.authorMonzenga, J.C.L.
dc.contributor.authorKomoy, J.
dc.contributor.authorCipriano, I.M.
dc.date.accessioned2022-03-10T11:29:19Z
dc.date.available2022-03-10T11:29:19Z
dc.date.issued2022
dc.identifier.citationAdejumobi, I.I., Agre, P.A., Onautshu, O.D., Adheka, J.G., Bambanota, M.G., Monzenga, J.C.L., ... & Cipriano, I. M. (2022). Diversity, trait preferences, management and utilization of yams landraces (Dioscorea species): an orphan crop in DR Congo. Scientific Reports, 12(1), 1-16.
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7384
dc.description.abstractYam (Dioscorea spp.) is cultivated in many villages of DR Congo as a means to sustain food security and alleviate poverty. However, the extent of the existing diversity has not been studied in details thus, considered as an orphan. A survey covering 540 farmers in 54 villages was conducted in six major yam growing territories covering three provinces in DR Congo to investigate the diversity, management and utilization of yam landraces using pre-elaborate questionnaires. Subject to synonymy, a total of 67 landraces from five different species were recorded. Farmers’ challenges limiting yam production were poor tuber qualities (69%), harvest pest attack (7%), difficulty in harvesting (6%), poor soil status (6%). The overall diversity was moderate among the recorded yam germplasm maintained at the household level (1.32) and variability exist in diversity amongst the territories and provinces. Farmers’ in territories of Tshopo and Mongala provinces maintained higher level of germplasm diversity (2.79 and 2.77) compared to the farmers in territories of Bas-Uélé (1.67). Some yam landraces had limited abundance and distribution due to loss of production interest in many villages attributable to poisons contained hence, resulting in possible extinction. Farmers’ most preferred seed source for cultivation were backyard (43%) and exchange with neighboring farmers (31%) with the objective of meeting food security and generating income. In villages where yam production is expanding, farmers are relying on landraces with good tuber qualities and high yield even though they are late maturing. This study revealed the knowledge of yam landrace diversity, constraints to production and farmers’ preferences criteria as a guide for collection and conservation of yam germplasm for yam improvement intervention.
dc.description.sponsorshipEuropean Union Commission
dc.format.extent1-16
dc.language.isoen
dc.subjectYams
dc.subjectDioscorea
dc.subjectDiversity
dc.subjectFood Security
dc.subjectGermplasm Conservation
dc.titleDiversity, trait preferences, management and utilization of yams landraces (Dioscorea species): an orphan crop in DR Congo
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversity of Kisangani
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInstitut Facultaire Des Sciences Agronomiques de Yangambi, Democratic Republic of the Congo
cg.coverage.regionAfrica
cg.coverage.regionCentral Africa
cg.coverage.countryDemocratic Republic of the Congo
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidADEJUMOBI:2022
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectYam
cg.journalScientific Reports
cg.notesOpen Access Journal; Published online: 10 Feb 2022
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1038/s41598-022-06265-w
cg.iitaauthor.identifierPaterne AGRE: 0000-0003-1231-2530
cg.futureupdate.requiredNo
cg.identifier.issue1
cg.identifier.volume12


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