The objective of this study was to evaluate the effect of plant growth regulator (Moddus Evo SE) application on yield and quality of winter wheat (Triticum aestivum L.).The plant growth regulator was applied in dose 0,3 and 0,4 l/ha at the end of tiller stage. Experimental results demonstrated that the application of this product increased the concentration of photosynthetic pigments in leaves, especially chlorophyll a. The application of growth regulator gives 3,7 quintals per hectare addition to the yield comparing to the control variant (33,6 q/ha). Generally, during two years of research the highest yield (37,3q/ha) was registered after use of Moddus Evo SE in dose 0,4 l/ha. The application of this regulator increased the content of phosphorus and quantities of nutrients consumed by grain yields. It is suggested that application of Moddus Evo SE could be biotechnology option to combat lodging of cereals.