1 Centre of Region Haná for Biotechnological and Agricultural Research, Crop Research Institute, Šlechtitelů 29, 783 71, Olomouc, Czech Republic. Electronic address: tarkowski@genobanka.cz.
2 Centre of Region Haná for Biotechnological and Agricultural Research, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic.