EN
In 2008 and 2009 the effect of two cultivation systems (conventional and ecological) on population of yeasts and mycelial fungi colonizing grain of two winter wheat cultivars (Bogatka and Legenda) was studied. In 2008 only grain of cv. Bogatka grown under the conventional system was colonized by significantly higher number of fungi than grain under the ecological system. In 2009 with frequent rainfall grain of both cultivars grown under the ecological system was colonized by a higher number of fungi as compared to the conventional system. In 2008 more isolates of Fusarium poae and F. sporotrichioides were obtained from grain grown under the conventional than under the ecological system, but in 2009 the opposite was generally true.