EN
This study presents results of the analysis of yields of meadow fescue and red fescue cultivars growing in several different environments (in Experimental Stations for Cultivar Testing) in years 1996-1999. The hypothesis of the lack of variances among the effects of environments has been discarded on the basis of the results. Moreover, the hypothesis of the lack of cultivars-environment interaction has also been proven wrong. In addition, the assumed lack of deviation from regression of interaction with regards to the environment has been verified. The cultivars, which deviations from the overall average for the tested species were particularly significant, have received special attention. The interaction of species with their environments has been by the system of management. Significant coefficients of regression and determination have brought to light thr intensive meadow fescue cultivar 'Limosa' in five-cutting management (Fig. 2). The lack of variety-environment interaction of Festuca rubra cultivar 'Atra' and strain AND 694 in three cutting utilization weren't proved.