Screening Musa genotypes for BBTD disease parameters and yield

Banana 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.

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Creator Ngatat, Sergine
Creator Affiliation International Institute of Tropical Agriculture (IITA)
Creator email s.ngatat@cgiar.org
Creator ID Type ORCID
Creator ID 0000-0002-5786-3865
Subject Vocab (AGROVOC/GACS/CAB) Banana, Aphids, Genotype, Plamtains, Virus, Disease, Sampling, Mortality, Suckers, Bunchy top disease
Subject(s) BBTD incidence, BBTD, BBTV
Publisher International Institute of Tropical Agriculture (IITA)
Contributor Person 1 Rachid Hanna
Contributor Person 1 Affiliation International Institute of Tropical Agriculture (IITA)
Contributor Person 1 email r.hanna@cgiar.org
Contributor Person 2 Lava Kumar
Contributor Person 2 Affiliation International Institute of Tropical Agriculture (IITA)
Contributor Person 2 email l.kumar@cgiar.org
Contributor Person 3 Stewart M. Gray
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Contributor Person 4 Michelle Cilia
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Contributor Person 5 Richard T. Ghogomu
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Contributor Person 6 Dominic A. Fontem
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Contributor Project Lead Organisation Center International Institute of Tropical Agriculture (IITA)
Contributor Project Lead Center International Institute of Tropical Agriculture (IITA)
Contributor CRI/CRP CGIAR Research Program on Roots, Tubers and Banana(RTB)
Contributor Partner University of Dschang, United States Department of Agriculture‚ÄďAgricultural Research Service (USDA-ARS), Delaware State University
Contributor Donor CGIAR program Roots, Tubers and Banana; the United Nations University On-the Job Training and Capacity Building grant, and the NSF-BREAD/Cornell University
Contributor Project Banana bunchy top disease control-RTB
Project ID
Contributor Affiliation International Institute of Tropical Agriculture (IITA)
Open-Access status Open Access
Production Date 2013-10-25
Embargo End Date
Content Type Dataset
File Format csv
Identifier Type DOI
Identifier https://doi.org/10.25502/pjwd-d974/d
Identifier Citation Ngatat, S., R. Hanna, P. L. Kumar, S. M. Gray, M. Cilia, R. T. Ghogomu, and D. A. Fontem. 2017. Relative susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implications for disease management. Crop Protection 101:116-122. doi.org/10.1016/j.cropro.2017.07.018
Source Banana bunchy top disease control-RTB
Language English
Relation Not applicable
Agroecological Zone Humid warm tropics
Coverage Region Sub-Saharan Africa
Coverage country Cameroon
Coverage Admin Unit Not applicable
Coverage Y (Latitude) 2.3232, 2.133
Coverage X (Longitude) 11.43653, 10.533
Coverage Start Date 2010-12-27
Coverage End Date 2013-10-25
Contact Ngatat, Sergine; International Institute of Tropical Agriculture (IITA)
Contact Email S.Ngatat@cgiar.org
Restriction CC-BY 4.0
Email Permission None
Rights CC-BY 4.0