1. Center for Small Grains and Rural Development, Save Kovačevića 31, 34000 Kragujevac, Serbia
2. Institute for Vegetable Crops, Karađorđeva 71, 11420 Smederevska Palanka, Serbia
3. Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11030 Belgrade, Serbia
4. Insitiute for Soil Science, Teodora Drajzera 7, 11000 Belgrade, Serbia
5. Tamiš Research and Development Institute, Novoseljanski put 33, 26000 Pančevo, Serbia