EN
The paper showed the applicability of the PCR method to an early identification of Fusarium avenaceum and Fusarium culmorum in infected tissues of selected crops. The polymerisation chain reaction used species-specific SCAR primers. There was observed a discrepancy between the size of multiplied DNA of Fusarium avenaceum fragment and that of Fa-U17f 5, Fa-U17r earlier described by authors of primers. The present research product size for F. avenaceum was 950 bp, while for F. culmorum - 472 bp which confirmed the reports by other authors.