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Objective: The objective of this study is to assess endogenous knowledge and biotic constraints related to bean production, and to identify local denomination traits that characterize species of the genus Phaseolus in Central and South Benin. Methodology and results: Thirteen (13) villages in Central and Southern Benin were prospected in May 2017 and January 2019 using the tools and technique of a participatory research approach based on free discussions, group and/or individual interviews and field visits. The results showed variation in species naming criteria that are primarily based on plant type, colour, size and specific uses of seeds. According to growers, the diseases that threaten beans are viruses, bacterial or fungal diseases with several species of leaf, pod and seed pests. Five (5) categories of uses per bean species were listed among which the food use is most significant with a broad range of use of the species Phaseolus vulgaris (CTUt=0, 98 and CTUPv=0, 68) whereas the use in the animal feeds is weaker (CTU=0, 08). Conclusion and applying the results: This study shows that beans are of great nutritional, agronomic, medicinal, cultural/cultural and spiritual importance to local populations, but there are constraints on the production of these resources to the point where they are threatened with extinction. Strategies for recovery and conservation are needed to preserve these genetic resources.

Connaissances endogènes et contraintes biotiques de production des haricots cultivés du genre Phaseolus au Centre et Sud Bénin (Afrique de l’Ouest