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Relative susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implication for disease management

dc.contributor.authorNgatat, S.
dc.contributor.authorHanna, R.
dc.contributor.authorKumar, P.L.
dc.contributor.authorGray, S.M.
dc.contributor.authorCilia, M.
dc.contributor.authorGhogomu, R.T.
dc.contributor.authorFontem, D.A.
dc.date.accessioned2019-12-04T11:09:16Z
dc.date.available2019-12-04T11:09:16Z
dc.date.issued2017-11
dc.identifier.citationNgatat, S., Hanna, R., Kumar, P.L., Gray, S.M., Cilia, M., Ghogomu, R.T. & Fontem, D.A. (2017). Relative susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implication for disease management. Crop Protection, 101, 116-122.
dc.identifier.issn0261-2194
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2010
dc.description.abstractBanana bunchy top disease (BBTD) is a serious threat to banana and plantain (Musa spp.) production. BBTD is caused by the Banana bunchy top virus (BBTV, genus Babuvirus) which is spread through infected plant propagules and banana aphid, Pentalonia nigronervosa. A high level of resistance to BBTD in Musa spp. has not been yet discovered, but there is a wide range of susceptibility among Musa genotypes. In this study, performance of 16 Musa genotypes to BBTD infection was studied during 37 months in two replicated field experiments planted in a BBTD-endemic location in the South region of Cameroon. BBTD expression varied among genotypes without any specific patterns related to their genomic composition. In Abang Minko'o, highest BBTD incidence was observed in Cavendish Williams (100%) and in the plantain hybrid variety PITA 23 (91.6%). A larger group of 11 genotypes including 4 plantain landraces, 3 hybrid plantains, 3 hybrid bananas and a Cavendish Grande Nain were susceptible with incidence between 40 and 80%. The disease incidence was least in Gros Michel and Fougamou which after 37 months had less than 20% symptomatic plants. In Kou'ou-si, 60% BBTD incidence was observed on PITA 23 while two plantain landraces (Asung Mbele, Big Essong) and Gros Michel remained uninfected at 37 months after planting. The banana aphid was present on all genotypes; but excepting PITA 23 and Williams in Abang Minko'o and PITA 14 and PITA 23 in Kou'ou-si, the occurrence of infection was not correlated to aphid abundance. BBTD expression on the same genotype planted in different areas reveals that BBTD expression is not only related to the varietal characteristic but also to the epidemiological situation of the area.
dc.format.extent166-122
dc.language.isoen
dc.subjectGenotypes
dc.subjectBanana Bunchy Top Virus
dc.subjectBananas
dc.subjectFood Security
dc.subjectDisease Management
dc.subjectDna
dc.subjectBbtd Incidence
dc.subjectAphid Abundance
dc.titleRelative susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implication for disease management
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversité de Dschang
cg.contributor.affiliationUnited States Department of Agriculture
cg.contributor.affiliationDelaware State University
cg.coverage.regionAfrica
cg.coverage.regionCentral Africa
cg.coverage.countryCameroon
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectBanana
cg.iitasubjectFood Security
cg.iitasubjectPlantain
cg.journalCrop Protection
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid85745
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1016/j.cropro.2017.07.018


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