Background and aims Root traits of tree species are of great importance for selection of trees in dry zone agroforestry systems. Climate models predict increased frequency and severity of drought in the Sahel but our understanding on the strategies of root growth of tree species under drought is limited. To increase our knowledge of species differences in rooting patterns we investigated root growth of nine dryland tree specie...

Dalbergia melanoxylon Guill. & Perr. is a highly valued species in the Ferlo region, and its wood is used for various purposes by local populations, including firewood, service wood, and timber. This multifunctionality has weakened its populations, and it has been identified as threatened in previous research. The aim of this study was to investigate the genetic variability of three populations (LC, VC, and YC) along a north–s...