1. Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
2. Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Italy
3. Section of Plant Physiology, Universitat de Barcelona, Barcelona, AGROTECNIO, Lleida, Spain
4. Centre for Ecology, Evolution and Environmental Changes (cE3c), da Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
5. Consiglio Nazionale delle Ricerche, Istituto di Ricerca sugli Ecosistemi Terrestri, Porano, Italy
6. Laboratoire de Production Animale et Fourragère, Institut National de Recherche Agronomique de Tunisie, University of Carthage, Tunis, Tunisia
7. Centre National de L’énergie, Des Sciences Et Techniques Nucleaires, Rabat, Morocco
8. Science and Research Centre Koper, Institute for Oliveculture, Koper, Slovenia
9. Sistemas agrários e florestais e sanidade vegetal, Instituto Nacional de Investigação Agrária E Veterinária, Oeiras, Portugal