Papers should deal with scientific and development aspects within the framework of the topics suggested above. The abstract should be submitted online via http://publish.actahort.org/ishs/handle/123456789/162. Once accepted, the authors are invited to submit full papers according to Acta Horticulturae instructions for authors at http://www.ishs.org/wri/pap1.htm. After reviewing process, selected papers will be published in “Acta Horticulturae” or “Revue des Régions Arides” special issues according to the scientific committee decision.