Institute for Science Application in Agriculture, Belgrade, Serbia (1,2,5)
Institute of Field and Vegetable Crops, Novi Sad, Serbia (3)
University of Bijeljina, Faculty of Agriculture, Bijeljina, B&H (3,4,6)
University of Belgrade, Faculty of Agriculture, Belgrade-Zemun, Serbia (4)
Technical Faculty, Agriculture, European University, Brčko District, Brčko, B&H (7)

University of Tripoli, Faculty of Agriculture, Tripoli, Libya (1)
Institute for Plant Protection and Environment, Belgrade, Serbia (2,3,7)
Institute for Science Application in Agriculture, Belgrade, Serbia (4)
Biotechnology Research Center, Tripoli, Libya (5)
Faculty for Applied Ecology „Futura“, Belgrade, Serbia (6)