The objective of this study was to evaluate the adaptability of mung bean lines introduced in Burkina Faso and to identify favorable environments for its cultivation. The present study was thus conducted on forty-four mung bean (Vigna radiata) genotypes in two agro-climatic zones of the country, namely the Sahelian zone and the Sudano-Sahelian zone. The experiments were more specifically conducted in three environments of these two agro-climatic zones characterized by an unequal spatio-temporal distribution of rainfall: Pobé, Kamboinsé and Saria. The field trials were conducted during the rainy season using an augmented bloc design with one check. Seeds harvested per plant weight as yield related important trait where recorded and analyzed. The results show that seed yield per plant varied with regards to the environments and to the genotypes. Indeed, the combined analysis of variance revealed the presence of a significant variability and an important influence of the environmental component in this variability. Also, using GGE-biplot analysis, study revealed that the most favorable environments during this mung bean multi-location trial in Burkina Faso where Kamboinsé and Pobé. These are the sites where the best performance in terms of seeds harvested per plant was recorded. GGE-biplot analysis also allowed to identify genotypes that shows specific adaptation to Kamboinsé and to Pobé. These are the genotypes: V 2709; VC 1481A/VC 1560A; NM 94 and 9154 for Pobé in the Sahelian zone, the most arid environment, and genotypes PLM 944; KPS2; Kyungkijaerae 16 and VC 1168D/VC1560A for Kamboinsé a relatively more humid zone.

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.

Jatropha curcas L. is a perennial oleaginous plant which is known for its multiple uses. The oil extracted from its seeds is used in the manufacture of biodiesel and soap. The plant also has therapeutic virtues and insecticidal properties. In Burkina Faso, the species remains under exploited. Despite its potentialities, the genetic diversity of this phytogenetic resource is badly known. This study was conducted to determine the level and the structuring of the genetic variability of a collection of 70 accessions coming from the various phytogeographical sectors of the country and to estimate the genetic parameters of the various characters. Thus, an agro-morphological evaluation of the collection was carried out during the rainy season 2014. Eleven (11) quantitative characters relating to the vegetative development and the potential of production of the plant were used. This study revealed the existence of variability within accessions. The characters related to the yield showed greater variability than those related of the vegetative development. The analysis of the structuring of variability showed that plants which have an important vegetative development are more productive than those of little size.The estimate of the genetic parameters revealed a weak difference between the phenotypic and genotypic coefficients of variation and high broad sense heritability for all the characters. The characters related to the yield expressed the highest expected genetic advance, phenotypic and genotypic coefficients of variation. The results of the study can be exploited in Jatropha curcas' improvement program.

Cowpea, Vigna unguiculata [L] Walp, is one of the most important grain legume grown in all arid and semi-arid regions of Africa. It contributes to reduce malnutrition and poverty and to achieve food security as well. However, cowpea production is hampered by many biotic and abiotic stresses which include viral diseases. Cowpea mosaic caused by CABMV is the main viral disease of cowpea in Africa. This study aims to determine the CABMV transmission rates through seeds describe the reaction of different cowpea genotypes to the virus and identify sources of resistance to serotype D of CABMV. A variation of seed born transmission of CABMV from 3% to 100% was observed for the varieties B301 and Kvu150. Inoculation of cowpea seedling with CABMV results in pods drop leading to yield loss. A negative correlation (r = - 0.33) was observed between date of onset of symptoms and hundred grains weight. The severity of symptoms varied from one cultivar to another. Thus, the best genotypes were those who had better production namely Kvx780-4 SH (28.08 g), Kvx780-3 (21.52 g), Kvx780-9 (20.31 g) and Gourgou (20, 02 g).

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.

Northern Burkina Faso, was once a region where yams "y

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.

The climatic changes and the irregularity of the seasons of rain involved the adoption by the farmers of the varieties more plastic and adapted in their zone of culture that the improved varieties. In the objective to measure the response of the ecotypes to photoperiodism, a study of the sensitivity of 120 ecotypes of sorghum of Burkina Faso to the photoperiod was made using a test comprising two dates of sowing. These ecotypes come from the germplasm of the University of Ouagadougou, made up between 1984 and 1986 within the framework of the safeguarding of the diversity of the sorghum. It comes out from this study that all the studied ecotypes are photoperiodic and systematically reduce their cycle at the time of a delay the semi one. Also let us note that 46 % of the ecotypes showed a sensitivity moderate to the photoperiod (0<K?0,3), 38% a relatively significant sensitivity (0,3<K?0,6) and 16 % a strong sensitivity (0,6 < K?0,9). The flowering of the ecotypes occurred in the 25 days which preceded the average date by end of the rain season and floral initiation started and finished during the time to which the day is shorter than the night. We retain as this study as at the time of a delay of 3 weeks sowing the ecotypes lose 10 to 96% their seeds with an average of 66%.

The objective of this study is to contribute to a better knowledge of the agromorphological diversity of Cleome gynandra L. of the West of Burkina Faso. Hundred accessions, collected in the vegetable gardens and the natural populations of the sahelo-soudan zone and the soudan zone of Burkina Faso, was evaluated according to a Latinized Alpha-Plan design. Observations and Biometrical measurements were carried on 23 variables. The study revealed a great agromorphological variability within the accessions from the vegetable gardens and those collected in the natural populations. 17 characters - 11 quantitatives and 6 qualitatives discriminate the studied accessions. Highly significant differences at 1% were observed between the accessions of the two climatic zones and between the accessions from the vegetable gardens and those collected in the natural populations. The agronomical performances of the accessions from the sahelo-soudan zone are higher than those of the accessions from the soudan zone. Also, the performances of the accessions from the vegetable gardens are higher than those from the natural populations. Several positive correlations were observed. The study of the structuring of the diversity of the accessions revealed two great sets. The first set is mainly constituted with cultivated accessions and accessions from the sahelo-soudan zone. The second set is mainly constituted with accessions collected in the natural populations and of accessions from the soudan zone. Thus, the growing practices and the climatic zones were the determining factors in the structuring of the diversity of the studied accessions.