1. Department of Agroecology and Organic Farming, Institute of Rural Development and Sustainable Production, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, H-1118 Budapest, Hungary
2. Horticultural Research Center, Agriculture Research Corporation (ARC), Wad Madani 126, 11111 Khartoum, Sudan
3. Institute of Technology, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, H-8360 Keszthely, Hungary