EN
The experiments were conducted at 2004–2006 in the Agricultural Experimental Station of IUNG (The Institute of Soil Science and Plant Cultivation) in Jelcz-Laskowice. Wheat cultivars: Kobra, Nadobna, Rapsodia, Rubens, Soraja, Tonacja and Trend, were used for the study. The subject of the mycological analysis was the grain of winter wheat from a crop grown at the standard cultivation level, without chemical protection. The relations among the number of colonies of two pathogenic fungi (Fusarium ssp., Alternaria alternata) and wheat cultivars as well as the years of performed research were subjected to the correspondence analysis. As compared to the other genotypes, the cultivars Trend, Rapsodia and Tonacja represented a discrete group, considerably different from the other cultivars in their more variable abundance of A. alternata and Fusarium spp. Also, the weather conditions variable between the years of the experiment, influenced the abundance and the size of A. alternata populations on the wheat grain different in each observation season.