This study focuses on the effect of seed weight on the germination and growth of Tieghemella heckelii. For this purpose, seeds were collected from a single tree. The seeds were weighed and classified into three categories according to their weight (heavy, medium, light). Five germination and five seedling growth parameters were then measured from 264 selected seeds. The germination parameters are average time of germination (TeGe), the percentage of germination (PoGe), the rate of germination (ViGe), the length of epicotyl (LoEp) and the length of hypocotyl (LoHy). The growth parameters considered are the height of the plants (TaPl), the number of leaves (NoFe), the number of branches (NoRa), the length of the roots (LoRa) and the diameter at the collar of the plant (DiPl). The best germination percentages were observed with the heavy (THL) and medium seeds (61% and 55.12% respectively). The highest germination rate (3.21 seeds/day) was also obtained with medium seeds (THM) as well as the highest growth parameters while the light seeds (THP) showed the lowest values for both germination and growth parameters. These results suggest that seed-weight-based selection is an important criterion for the regeneration of Tieghemella heckelii.

This study was conducted around two experimental apiaries located in the Badenou protected forest, at the periphery and nearby the villages of Tiébila and Nafoun. Its purpose was to characterize the structure of woody vegetation and to evaluate its relative importance. For this purpose, a surface inventory was carried out in December 2017. The structure of the vegetation was studied through the density of woods, the basal area and the diameter structure. The relative importance of the flora was appreciated through the indices of importance value and rarefaction of species and families. An average floristic richness was observed with 96 species grouped into 72 genera and 30 families. The high density (1482 ± 657.15 stems/ha) and the average basal area (13.19±5.94 m2/ha) could be due to the good level of conservation of woodlands. The diametric structure of vegetation presented an appearance of "inverted J" and showed a predominance of small diameter trees. Eight species and eight families were predominant. Sixty-three species and 15 families were rare. Pending the results of the identification of honey plants, the woody flora studied is potentially melliferous. Its medium diversity and its high density were a major asset for beekeeping because they were likely to provide the floral resources necessary for a large production of honey.