EN
The aim of performed research was to assess the effect of the herbicide Chwastox Trio 540 SL used at recommended and reduced by 50% doses on grain parameters of three spring varieties: Nawra, Zadra, Korynta. A strict field experiment was setup with randomized block in 3 replication on gray podsolic soil of loess origin. The effect of both doses of used herbicide was compared with the control object (no herbicide treatment). The results of research revealed that the herbicide Chwastox Trio 540 SL positively affected the technological value of grain. Grain quality parameters were mainly dependent on wheat varietal factor.