1. Department of Agriculture Crop Production and Rural Environment
2. University of Thessaly
3. Volos
4. Greece
5. Centro de Investigação de Montanha (CIMO)
6. Instituto Politécnico de Bragança
7. 5300-253 Bragança
8. Portugal
9. University of Belgrade
10. Department of Plant Physiology
11. Institute for Biological Research “Siniša Stanković”
12. 11000 Belgrade
13. Serbia