Affiliation: | 1. Dipartimento di Agraria, University of Sassari, Sassari, Italy;2. Dipartimento di Agraria, University of Sassari, Sassari, Italy Desertification Research Centre, NRD, University of Sassari, Sassari, Italy Margherita Rizzu and Alberto Tanda should be considered joint first authors.;3. Nelson Mandela African Institution of Science and Technology, NM-AIST, Arusha, Tanzania;4. Dipartimento di Agraria, University of Sassari, Sassari, Italy Desertification Research Centre, NRD, University of Sassari, Sassari, Italy |