EN
The aim of the studies was to determine the allelophatic effect of Alopecurus myosuroides seeds on winter wheat germination and seedling growth. Results showed that the neighbourhood of A. myosuroides decrease germination ability of winter wheat by 4–42% in comparison to the pure sowing. A negative influence of the tested weed species on length of seed root of wheat was observed. The research showed that neighbourhood of A. myosuroides seeds caused root shortening of winter wheat by 64–77%, in comparison to the control (pure sowing of winter wheat).