Thomas R. Sinclair, Department of Crop and Soil Sciences, North Carolina State University, Raleigh, USA
Afshin Soltani, Agronomy Group, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Vincent Vadez, Institut de Recherche pour le Developpement (IRD) – Université de Montpellier – UMR DIADE, Montpellier, France
Hélène Marrou, Agro-BioSciences, Mohammad VI Polythenic University, Benguerir, Morocco
Michel Ghanem, Agro-BioSciences, Mohammad VI Polythenic University, Benguerir, Morocco