Cowpea is an important pulse crop grown in sub-Saharan Africa and in parts of Asia and the Americas. Cowpea seed is an affordable source of nutrients rich in protein with number of essential amino acids. Dehulled seeds of eight improved cowpea lines grown in N’Djamena and Bebedjia (Chad) were analyzed for seed protein content in order to assess the variability, the heritability and the effect of environment interaction. In each locality, the experimental design was a triplicated randomly complete block design. The results showed a wide variability among genotypes for crude seed protein content. The mean value of crude seed protein content was 25.55% with varieties TN-27-80, TN-985-61399 and TN-5-78 showing highest values. High heritability in broad-sense (h2 = 0.74) and moderate genetic advance (GA = 14%) estimated for this character indicated the scope for improvement through selection. The effects of genotype (83.1% of the total sum of square), location (3.5%) and their interaction (13.4%) were highly significant (P<0.01), but the protein content was slightly influenced by the environment. High potential for breeding programs is expected as genetic factors are believed to account for the main variation in protein content. This research could provide information for breeders to develop cowpea cultivars with higher protein content.

Climate change is the single greatest threat to human health, and medical professionals around the world are already taking action to mitigate the health effects brought on by this developing crisis. In order to avoid catastrophic health effects and the millions of fatalities that would come from climate change, the Intergovernmental Panel on Climate Change (IPCC) thinks that the increase in global temperature must be kept below 1.5°C. Some global temperature increases and other climate effects are already unavoidable due to historical emissions. Every additional tenth of a degree of global warming will have a significant negative impact on people's lives and health. It is thought that even a rise of 1.5°C is unsafe.

Summary: It is important to estimate the aboveground biomass and carbon stocks of trees with non-conforming trunks in the forests of the central Congolese basin to plan resource management and to assess the contribution of these forests in mitigating the effects of climate change and, this within the framework of conservation at the scale of a reserve, that for Measuring, Reporting and Verifying forest carbon stocks within the framework of national strategies for the reduction of greenhouse gas emissions linked Deforestation and Forest Degradation (REDD+). This study aimed to set up a protocol for estimating the aerial biomass and the corresponding carbon stocks of trees with particular architecture in the Yasikia forest. To succeed, a dendrometric study was carried out for all trees with non-compliant trunks. Dendrometric data were collected on 189 trees divided into 9 families and 20 species. The results of this study show that it is preferable to use the equivalent diameter for a good estimate of the biomass because taking the diameter at the end of the buttress or above, underestimates the quantity of biomass for a tree with a trunk not compliant. The equation used to estimate the woody biomass from different diameters was that of Brown et al., (1989). The results of this study show that it is preferable to use the equivalent diameter for a good estimate of the biomass because taking the diameter at the end of the buttress or above, underestimates the quantity of biomass for a tree with a trunk not compliant. The equation used to estimate the woody biomass from different diameters was that of Brown et al., (1989). The results of this study show that it is preferable to use the equivalent diameter for a good estimate of the biomass because taking the diameter at the end of the buttress or above, underestimates the quantity of biomass for a tree with a trunk not compliant. The equation used to estimate the woody biomass from different diameters was that of Brown et al., (1989).

Ruellia brittoniana is a common wild ethnomedicinal plant belonging to the Acanthaceae family. The plant was claimed ethnically wound-healing properties, use as an antidote against snake bites and to cure bone fractures. However, these claims are not been validated. The present study deals with powder microscopy, fluorescence, and qualitative phytochemical analysis of the leaves, stem, and root of this plant. The powdered microscopy showed the presence of both types of trichomes and spiral elements. The Fluorescence analysis under visible and ultra-violet light for leaves, stems and root powder treated with various chemical reagents revealed different patterns of fluorescence effect. The qualitative phytochemical study showed that the plant is rich in phytochemicals and possesses significant levels of Glycosides, alkaloids, flavonoids, terpenoids, steroids, and saponins. The availability of these groups of Phyto- components indicates that the plant could prove an alternative remedy to cure asthma, fever, bronchitis, high blood pressure, eczema, and diabetes. Further, the GC-MS analysis revealed the 10 phytochemical compounds have significant medicinal potential. The major objective of this study is to endorse this plant as a step toward commercial drug developments after confirming and standardizing its microscopic features and fluorescence behavior to identify adulteration in market-available crude drug powder and screening for possible drug molecules.