Articles
Fusarium wilt race 1 on the Silk Sotoumon banana cultivar in Benin: distribution, impact on small farmers and agroecological management approaches
Article number
1367_22
Pages
191 – 200
Language
English
Abstract
The AAB banana, from the important group of Silk (Figue pomme in French), locally called Sotoumon, is highly valued and demanded, and is very susceptible to Fusarium oxysporum f. sp. cubense race 1 in Benin.
This banana cultivar is severely attacked by this fungus.
This study determined the distribution, symptom characteristics and yield losses due to Fusarium oxysporum f. sp. cubense race 1 and its impact on the small-scale farmers income.
The study also explored the impact of farmer management practices and environmental factors on this disease.
A total of 50.8% of the observed plants showed yellowing and wilting of the leaves, generally evolving from the oldest leaves to the youngest.
The withered leaves broke off at the petiole and hung over the pseudostem.
The incidence of the disease varied from 19.3 to 50.8% across the study area (P<0.00001). Agricultural practices such as chemical use, crop and tree associations, and tree shading had a negative association with the incidence of Fusarium wilt race 1. In case of Fusarium wilt infection, the yields were low and varied from 0 to 12 kg (2.1±0.3 kg) with a loss of an average yield of 8.7±0.3 kg.
Regarding the disease management strategies, some farmers reinforced the fertility of their soils with decomposed wastes or poultry/animal manure (1.7%), chemical fertilizers (2.5%) and wood ashes (1.7%). Extensive screening is needed to understand the role of organic fertilization in the tolerance of Silk bananas to Fusarium oxysporum f. sp. cubense race 1.
This banana cultivar is severely attacked by this fungus.
This study determined the distribution, symptom characteristics and yield losses due to Fusarium oxysporum f. sp. cubense race 1 and its impact on the small-scale farmers income.
The study also explored the impact of farmer management practices and environmental factors on this disease.
A total of 50.8% of the observed plants showed yellowing and wilting of the leaves, generally evolving from the oldest leaves to the youngest.
The withered leaves broke off at the petiole and hung over the pseudostem.
The incidence of the disease varied from 19.3 to 50.8% across the study area (P<0.00001). Agricultural practices such as chemical use, crop and tree associations, and tree shading had a negative association with the incidence of Fusarium wilt race 1. In case of Fusarium wilt infection, the yields were low and varied from 0 to 12 kg (2.1±0.3 kg) with a loss of an average yield of 8.7±0.3 kg.
Regarding the disease management strategies, some farmers reinforced the fertility of their soils with decomposed wastes or poultry/animal manure (1.7%), chemical fertilizers (2.5%) and wood ashes (1.7%). Extensive screening is needed to understand the role of organic fertilization in the tolerance of Silk bananas to Fusarium oxysporum f. sp. cubense race 1.
Authors
A.G. Dassou, S. Tovignan, E. Sossa, S. Déguénon, G.T. Vodouhè, R. Tokannou, G.C. Assogba, C. Akpodji, M.Z. Tachin, A.H. Bokonon-Ganta, S.D. Vodouhè
Keywords
bananas, Fusarium oxysporum f. sp. cubense race 1, organic fertilization, Sotoumon, tolerance, Benin
Groups involved
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