1. Hellenic Agricultural Organization “Demeter”, Agricultural Research General Directorate – N.AG.RE.F., Industrial and Forage Crops Institute, Larissa, Greece
2. Department of Environmental Systems Science (D-USYS), Institute of Agricultural Sciences, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland
3. Département fédéral de l’économie, de la formation et de la recherche DEFR, Agroscope, Institut des sciences en production végétale IPV, Nyon, Switzerland
4. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA-CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
5. Hermiston Agricultural Research & Extension Center, Oregon State University, Hermiston USA