This study focuses on four yam cultivars belonging to the Folou or Flado farmer’s group in the Gourounsi and Lobiri national languages grown in Burkina Faso. Its objective is to describe the different yam cultivars belonging to this group. To this end, 27 qualitative variables, including ten (10) for the stems, nine (9) for the leaves, five (5) for the tubers and three (3) for the flowers, were selected to characterize the varietal group. The trial was conducted in a Fisher block design with three replications. The work was conducted during the 2019-2020 and 2020-2021 rainy seasons in the village of Onliassan, Sissili province. The study revealed that the Folou or Flado varietal group can be attached to the D. alata species and would consist of five (05) cultivars instead of three (03) previously described by farmers.

Hibiscus sabdariffa commonly known as roselle is a species widely used in Burkina Faso. The objective of this study is to contribute to a better knowledge of the species. Specifically, it is to (i) draw up an inventory of local knowledge about the plant and (ii) to identify modes of management of the plant by farmers in Burkina Faso. An investigation was carried out through semi-structured interviews in six provinces in Western area of Burkina Faso. Informations such as: vernacular names, cultivation practices, method of obtaining and saving seeds, cultivation periods and uses of the plant are listing. In total, 179 farmers from 13 ethnical groups were interviewed. About 34 vernacular names were recorded according to these ethnic groups. To describe local varieties, farmers use morphological traits such as the color and size of plant and shape of calyxes. On this basis, two local varieties were described on the basis of the color of the plant, two on the basis of shape of calyxes and two on the basis of the size of plant. Leaves, calyxes and seeds are used as food for local populations and marketing of seeds, leaves and calyxes and their derived products constitutes a significant source of incomes for producers.

Cowpea (Vigna unguiculata (L.) Walp.) is one of the most important arid legumes cultivated for pulse and forage production in the savannas of west Africa. Its cultivation is confronted to biotic and abiotic constraints. The abiotic constraints are primarily of (recorded rainfall, temperature, poor soil). This research was conducted to identify cowpea breeding lines that tolerant to drought. Seven genotypes obtained from cowpea breeding program of marker-assisted recurrent selection (C2-111-4, C2-111-2, C2-9-3, C2-11-3, C2-31-2, C254-4 and C2-64-2), two parents of crossing (Gorom local and IT97K-499-35) and IT99K-573-2-1 (yiis yande, grown under drought stressed and non-stressed conditions. Drought stress reduced seed yield, 100 seed weight and chlorophyll stability index. Correlation between stressed and non-stressed seed yield were (r=+0.646). Biplot displays of quantitative indices of stress tolerance and genotypes seed yield indicating that genetic variability for drought tolerance existed amongst the tested germplasm with regard to seed yield and drought tolerance. According to their yielding ability and quantitative indices of stress tolerance, the genotypes (C2-31-2, C2-9-1, IT97-499-35, C2-111-4, C2-111-2, C2-9-3, C2-11-3, et C2-64-2) were grouped in low yielding under drought condition; Gorom local et C2-54-4 in order were identified as high yielding and moderate yielding under drought. IT99K-573-2-1 was found to be susceptible drought.

Forty-one (41) accessions of the jute potager (Corchorus olitorius L.) collected in Burkina Faso were evaluated on July 2014 with twenty-five (25) characters according to a Latinized Apha-Plan. The global objective of this study is to contribute to a better knowledge of the agromorphological diversity of C olitorus of Burkina Faso. The study revealed that 75,61% of the accessions studied belong to C olitorius var olitoriu L. variety and 24,39% belong to C olitorius var incisifolius Asch.& Schw variety. It showed indeed that several characters discriminate the accessions at 1%. The study of the structuring of diversity revealed three groups of accessions on the basis of the plant height, stem diameter, width of leaf and leafy biomass. Thus, the group I is constituted of big size accessions with robust stem, high leafy biomass and thin fruits. The Group II is constituted of individuals with performances relatively low. The Group III is a mixed group constituted with 65% C olitorius var clitoris L. and 35% of C olitorius var incisifolius Asch. & Schw. This group is made up of individuals with reduced size, with weak leafy and big fruits.