Shea Tree State of Settlement According to the Cropping Systems in Burkina Faso [Rural Commune of Komki-Ipala (Tampoussoumdi)]

This study was to assess the effect of bush fires and human actions on the settlement status of the shea tree in cropping systems. It was carried out using three farming systems as treatments in which randomized plots were set. Thus, dendrometric data were collected from the shea trees. The sampling concerned twelve plots of 0.5 ha (100 m × 50 m) each and the number of adults of shea trees and that of the regeneration per plot was recorded. Forty-five (45) species divided into 20 families and 36 genera have been identified, with a decreasing number ranging from unburned fallow to fields through burnt fallow. From these results, it emerges that the young shea plants are predominant in the unburned fallow. The mapping using geographic coordinates showed that the shea tree gradually aggregated in the fallows with a higher density. Actions must then be taken to support farmers in the domestication and protection of the shea tree for its effective conservation in cropping systems.

Mycorrhizal Inoculation Effect on the Forage Cowpea Biomass Production in Burkina Faso

In Burkina Faso, breeding occupies an important place in the country’s economy, but is based essentially on the exploitation of the natural resources (pasture) which remains limited in extent due to the extension of land cultivated by agricultural practices extensive. Food is one of the most important limiting factors in animal production, hence the need to develop mechanisms to improve the production of food resources. This study is a contribution to fodder production improvement. In this study, cowpea was grown in a greenhouse for 60 days and inoculated with two inocula of arbuscular mycorrhizal fungi. The growth parameters were measured at 30 and 60 days after sowing. Shoot, root and total biomass were evaluated 60 days after sowing. The results show Yac 2 mix inoculum improves height growth (95.5%), height relative growth rate (525%), collar diameter (138%), collar diameter relative growth rate (328.57%), shoot biomass (396.3%), root biomass by (205.66%), total biomass by (320%), total nitrogen of aerial parts (92.39%) and total phosphorus of aerial parts (143.48%) compared to control. Yac 2 mix appears the most effective of all inoculum used in this study.

Characterization of Atypical Individuals of Lannea in Burkina Faso

Background and Objectives: The species to the Lannea genus are trees, shrubs with compound leaves. Thus, individuals called atypical Lannea with single leaves and of socio-economic interests have been identified in the central plateau region (Burkina Faso). This study aimed to contribute to the identification of atypical species. Material and Methods: The Polymerase Chain Reaction (PCR) method using specific primers was performed and consisted of extracting DNA from young leaves of Lannea individuals, amplifying and then sequencing portions of discriminating DNA (matK, rbcL and rps16). Results: It was shown that individuals belong to the Lannea genus, but are subdivided into three subgroups: a first subgroup containing Lannea microcarpa and two subgroups with no previously identified Lannea species. Conclusion: These atypical individuals are ecotypes or mutants of Lannea microcarpa.