Gnetum africanum Welw belonging to the botanical family of Gnetaceae (order Gnetales ) is a wild plant of Central African forests. It provides a non-timber forest product called "koko" harvested for its food and commercial interest. In Congo intensified harvest caused its disappearance around major cities and the remoteness of rural harvesting sites. The objective of this study was to know the influence of light on the potential and spread of different growth stages in relation to the change in canopy gaps that allow the entry of light into the undergrowth. The study was carried out in the departments of plateaux and Kouilou where two and three sites were sampled respectively. The analysis of forest sites by basal area led to distinguish the forest regrowth, the young secondary forest and old secondary forest or mature. Recruits are characterized by large canopy gaps ranged between 50.5
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