Water stress responses of Saba senegalensis provenances during the seedling stage

Saba senegalensis is a multi-purpose liana from sub-Saharan Africa that under threat over-exploitation of its fruits and land degradation erratic rainfall affecting regeneration. This research aims to assess survival, growth dry matter distribution in the responses water regimes S. seedlings nine provenances slightly, moderately severely zones Burkina Faso. The study parameters were provenance, duration drought stress. A total 567 (63 per provenance) grown using factorial design. Five months after germination, three applied: high, medium low soil content, corresponding respectively 100, 75 50% pot capacity. experiments lasted for 6, 9 12 stress began. Survival rates, parameters, biomass production, tolerance sensitivity indexes calculated data analyzed linear mixed model. Drought reduced seedling survival while relative rate collar diameter increased. Concerning stress, decreased shoot-to-root ratio After six had invested more roots, whereas twelve reverse trend was observed. Furthermore, slightly zone produced when watered content regime, drought-tolerant than those zones. could indicate originating these are well adapted severe For domestication programs, can be successfully propagated agroforestry systems where limiting factor.