Fumonisins are important naturally-occuring mycotoxins produced purely by Fusarium species. The occurrence, frequency and implication of mycotoxins entering the food and feed chain through cereal grain have gained global attention over the last decade. The aim of this work was to monitor fumonisins synthesis in sixteen cultivars maize grain samples in four replication. There were statistically significant differences in the degree of contamination of fumonisins in analysed cultivars of maize. We found that the selected corn cultivars were significantly different in terms of the content of fumonisins. Hybrids with F (flint) and D (dent) grain type had significantly higher content of fumonisins than those of mixed type D/F (dent/flint) and F/D (flint/dent). Together with an increase in FAO number, fumonisins concentration decreased.