FUSARIUM HEAD BLIGHT AND MONILIFORMIN ACCUMULATION IN KERNELS OF 18 WINTER-WHEAT CULTIVARS INOCULATED WITH FUSARIUM-AVENACEUM (3 YEARS STUDY)

Eighteen, the most important in Poland cultivars of wheat, were tested , in 3 years field experiment (crops 1994, 1995 and 1996), on their su sceptibility to head blight, yield traits reduction and moniliformin a ccumulation in kernels after inoculation with F. avenaceum KF 203 (ATC C 64 451) isolate. The average percentage of kernels with visible symp toms of scab (crops 1995 and 1996) was 39.2 and 84.7% while the averag e weight of 1000 kernels and weight of kernels per head were reduced r espectively to the levels of 92.5 and 86.7; 80.5 and 42% of control (n on-inoculated) group. Moniliformin concentration in total sample of ke rnels was 2.1 mg/kg (both seasons). On the basis of 3 years results, c oncerning percentage of diseased kernels, yield reduction and level of kernels contamination with the toxin, 3 cultivars (Liwilla Caribo and Maltanka) were found as of the lowest susceptibility to fusariosis, w hile 3 other (Gama, Kobra and Almari) as highly susceptible.