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Assessment of water yam (Dioscorea alata L.) landrace varieties for resistance to anthracnose disease

dc.contributor.authorBakayoko, L.
dc.contributor.authorPokou, D.N.
dc.contributor.authorEssis, B.S.
dc.contributor.authorKouakou, A.M.
dc.contributor.authorDibi, K.E.B.
dc.contributor.authorKouassi, A.B.
dc.contributor.authorNzue, B.
dc.contributor.authorKoutouan, T.T.
dc.contributor.authorZohouri, P.G.
dc.contributor.authorN'guetta, A.S.
dc.contributor.authorAgre, A.P.
dc.contributor.authorMondo, J.
dc.contributor.authorAdebola, P.O.
dc.date.accessioned2022-03-21T10:26:41Z
dc.date.available2022-03-21T10:26:41Z
dc.date.issued2022-03
dc.identifier.citationBakayoko, L., Pokou, D.N., Essis, B.S., Kouakou, A.M., Dibi, K.E.B., Kouassi, A.B, ... & Adebola, P.O. (2022). Assessment of water yam (Dioscorea alata L.) landrace varieties for resistance to anthracnose disease. African Journal of Agricultural Research, 18(3):2A80CC368784, 178-193.
dc.identifier.issn1991-637X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7388
dc.description.abstractBakayoko, L., Pokou, D.N., Essis, B.S., Kouakou, A.M., Dibi, K.E.B., Kouassi, A.B. & Adebola, P.O. (2022). Assessment of water yam (Dioscorea alata L.) landrace varieties for resistance to anthracnose disease. African Journal of Agricultural Research, 18(3), 178-193. Abstract: Yam anthracnose disease (YAD), caused by the fungus Colletotrichum gloeosporioides Penz, is the most damaging fungal disease of Dioscorea alata yam worldwide. Local yam varieties, which sustain Côte d'Ivoire’s farmers and other end-users livelihoods, are highly susceptible to this pathogen. Thus, there is a need for developing new yam cultivars to sustain yam production in Côte d'Ivoire. To achieve such objective, identifying and selecting sources of resistance within the existing germplasm is crucial prior to the establishment of a breeding program. This study, therefore, aimed at determining the field resistance to C. gloeosporioides of 115 D. alata landrace varieties. Field experiments were conducted at the Research Station for Food Crops (SRCV) of the CNRA, Bouaké City, in Central Côte d'Ivoire, for three growing seasons. Results showed that symptoms of the anthracnose disease were more noticeable four months after planting (P3): high disease severity and incidence scores. At this period, ‘Betebete’ group (DSS = 3.40 and DI = 99.81%) was the most sensitive to anthracnose disease across years. In contrast, ‘Brazo’ (DSS = 2.24 and DI = 94.81%) and ‘Florido’ (DSS = 2.59 and DI = 97.23%) groups were the least sensitive. This finding indicates that local yam accessions from Côte d’Ivoire have different sensitivity levels to anthracnose disease attacks. Therefore, the genetic diversity from this work should be further exploited by yam breeding and genetic improvement programs for developing cultivars, combining resistance to YAD, high yield potential, and superior tuber quality to meet producers and consumers’ needs.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.description.sponsorshipNational Agronomic Research Centre
dc.format.extent178-193
dc.language.isoen
dc.subjectCôte d'Ivoire
dc.subjectDisease resistance
dc.subjectEnvironment
dc.subjectDioscorea alata
dc.subjectPlant breeding
dc.subjectAnthracnosis
dc.titleAssessment of water yam (Dioscorea alata L.) landrace varieties for resistance to anthracnose disease
dc.typeArticle
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversité Félix Houphouët-Boigny (Université Felix Houphouet Boigny)
cg.contributor.affiliationCentre National de Recherche Agronomique
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.countryCote d’Ivoire (Ivory Coast)
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidBAKAYOKO:2022
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAflatoxin
cg.iitasubjectAgronomy
cg.iitasubjectPlant Breeding
cg.iitasubjectYam
cg.journalAfrican Journal of Agricultural Research
cg.notesOpen Access Article
cg.accessibilitystatusOpen Access
cg.reviewstatusInternal Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.5897/AJAR2021.15637
cg.iitaauthor.identifierPaterne AGRE: 0000-0003-1231-2530
cg.iitaauthor.identifierPatrick Adebola: 0000-0002-5155-6194
cg.futureupdate.requiredNo
cg.identifier.issue3: 2A80CC368784
cg.identifier.volume18


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