Caractérisation agro-morphologique d’accessions de moth bean introduites au Burkina Faso

Caractérisation agro-morphologique d’accessions de moth bean

Abstract

Moth bean (Vigna aconitifolia) is a highly drought tolerant grain legume native to the Indian subcontinent.
Its seeds are an important source of dietary protein, carbohydrates, fatty acids, minerals and vitamins. In
order to contribute to a better knowledge of this legume in the agro-ecological context of Burkina Faso, a
collection of 47 moth bean accessions was introduced and characterized on the basis of seven qualitative
and seven quantitative parameters. The trial was conducted following an augmented block design with
three blocks. For the qualitative parameters, within this, a significant diversity was observed except for
flower color and pod shape. Analysis of variance of quantitative traits was significant for all studied
parameters. The phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of
variation(GCV) for all traits, revealing a predominance of the effect of the environment effect on studied
traits. A high heritability(H2) coupled with a high genetic advance (GA) was observed for the following
traits: Main axis length (MAL), number of pods per plant (NPP) and seeds harvested per plant (SHP),
suggesting that these traits are under the influence genes with additive action. These parameters are
therefore likely to be improved following a conventional breeding schemes. This breeding activity could
exploit the diversity present in the accessions of the three (03) groups generated by the hierarchical
ascending classification.