Assessment of bambara groundnut landraces for resistance to <i>Cowpea aphid borne mosaic virus</i>

Abstract

Bambara groundnut (Vigna subterranea) is an important seed legume in Burkina Faso. It provides a well-balanced diet and many other benefits for populations, especially in rural areas. Despite all these advantages, bambara groundnut cultivation remains subject to many constraints. One of the most important of them is viral diseases. This study was conducted in order to identify from Burkina Faso bambara groundnut landraces, some resistant genotypes to Cowpea aphid-borne mosaic virus (CABMV). In this study, 20 bambara groundnut landraces collected from three climatic zone of Burkina Faso were tested. According to their level of sensitivity to the CABMV isolate tested we obtained two groups of genotypes: G1 and G2. After retroinoculation, only six landraces, namely E119, E117, E105-a from Sahelian zone and E53-a, E103 and E97 from Sudan-sahelian zone, showed a resistance to the CABMV isolate. These results could be used to develop control strategies against viral diseases.