Background A biobank is a structure which collects and manages biological samples and their associated data. The collected samples will then be made available for various uses. The sharing of those samples raised ethical questions which have been answered through specific rules. Thus, a Biobank functioning under tight ethical rules would be immensely valuable from a scientific and an economic view point. In 2009, Côte d’Ivoire established a biobank, which has been chosen to house the regional biobank of Economic Community of West African States (ECOWAS) countries in 2018. To ensure optimal and efficient use of this biobank, the scientific community must be aware of its existence and its role. It was therefore necessary to evaluate the knowledge of laboratories staff on the role and activities of a biobank. Methods This descriptive study was done by questioning staff from laboratories working on human’s health, animals or plants. The laboratories were located in southern Côte d’Ivoire. Results A total of 205 people completed the questionnaire. Of these 205 people, 34.63% were biologists, 7.32% engineers, 48.78% technicians and 9.27% PhD students. The average length of work experience was 10.11 ± 7.83 years. In this study, 43.41% of the participants had never heard of biobanking. Only 48.78% of participants had a good understanding of the role of a biobank. Technicians and PhD students were less educated on the notion of biobank (p < 0.000001). Although biologists were more educated on this issue, 21.13% of them had a misconception of biobank. Good knowledge of the role of a biobank was not significantly related to the work experience’s length (p > 0.88). Conclusion The level of knowledge of laboratory staff about biobanking needs to be improved. Training on the role, activities and interests of the biobank is important.

The reaction of four sorghum cultivars to panicle-feeding bugs was assessed in small (15 m 2 ) and large (0.5-1.0 ha) plots for 2 years in three villages of the Kolokani region (Mali). The aim was to explain the somewhat contradictory earlier observations of pest infestation and damage in small experimental plots (on-station and on-farm) as well as in farmers' field surveys. Irrespective of the plot size, the local guinea sorghum cultivar Bibalawili was consistently the least infested and damaged, followed by bug-resistant compact-headed cv Malisor 84-7, whereas the improved caudatum cultivar Gadiabani, which had been disseminated for nearly a decade in the region, and the improved hybrid ICSH 89002, were the most heavily damaged. When located along the border of large plots of a susceptible cultivar, small plots of the four cultivars overall were less infested and damaged than when located along the border of plots of resistant cultivars. However, they were more infested and damaged when located in the centre of large plots of susceptible cultivars than when they were in the centre of resistant cultivar plots. In large plots, bug populations and damage decreased from the border to the centre. These results suggest that, in addition to the mere plot size, plant breeders should take the genotypic environment of their experimental plots into account, namely the vicinity of large plots of pest-susceptible or -resistant cultivars, and the position of the test plots (border or centre) relative to these large plots.

In the past twenty years, Côte d'Ivoire has risen from being an insignificant producer of raw cashew nuts to becoming the world's largest producer. A rapid increase of cashew plantations has significantly changed the natural landscape in the North part of Côte d'Ivoire. This study was conducted in the department of Niakaramadougou to assess the natural landscape change due to cashew plantations from 1989 to 2017. Satellite image data were used in order to evaluate land use land cover (LULC) change. The maximum likelihood pixel-based on classification method was used to analyze the spatiotemporal LULC dynamics for the years 1989, 2000, and 2017. The results showed an increase in cashew culture by 20.68% between 1989 and 2017 to the detriment of the savannah. Thus, the land devoted to old fallows or to other crops such as rice, maize, yams, peanuts, sorghum) is decreasing and the natural vegetation is becoming more and more fragmented, with consequences that are not yet known. This surely contributes to the reduction of plant diversity.

Backgound The biobank is a structure that manages and makes available biological resources. The biobank has medical, scientific and economic interests in an ethical manner. In 2009, Côte d'Ivoire established a biobank, which has housed the regional biobank of ECOWAS countries since 2018. To ensure optimal and efficient use of this biobank, scientific stakeholders must be aware of its existence and role. It was therefore necessary to assess the knowledge of laboratory staff on the role and activities of a biobank. Methods This is a descriptive study conducted with staff of human, animal and plant health laboratories located in southern Côte d'Ivoire. Results A total of 205 people agreed to complete the proposed questionnaire. Of these, 34.63% are biologists, 7.32% engineers, 48.78% technicians and 9.27% phD students. The average professional experience was 10.11 ± 7.83 years. Respectively, 47.32% and 43.41% have never heard of biocollection and biobank. Only 48.78% of participants had a good understanding of the role of a biobank. Technicians and phD students were less educated on the notion of biobank (p<0.000001). Biologists, although they were more educated on this issue, 21.13% of them had a misconception of biobank. Good knowledge of the role of a biobank was not significantly related to the duration of professional experience (p>0.88). Conclusion The level of knowledge of laboratory staff about biobanking remains to be improved. Training on the role, activities and interests of the biobank is important.