1. Experimental Station for Cultivar Assessment of Central Crop Research Centre, Uhnin, 21-211 Dębowa Kłoda, Poland
2. Department of Plant Production Technology and Commodities Science, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
3. Department of Potato Agronomy, Plant Breeding and Acclimatization Institute-National Research Institute, Branch of Jadwisin, Jadwisin, 05-140 Serock, Poland
4. Department of Food Production and Safety, State Academy of Applied Sciences in Krosno, 38-400 Krosno, Poland