The aim of this paper was to estimate the persistence and stability of 8 cultivars of Lolium perenne L. in pasture and meadow sward in peat-muck soils. The research was carried out over 1996-2005 at Sosnowica, the Wieprz-Krzna Canal Region. Pasture mixture sward was grazed by Limousine meat cattle (4-5 rotations), while meadow sward – cut (3 regrowths). Over the studies pasture utilization stimulated a larger share of the cultivars tested in comparison to meadow use. Over the 2002-2003 winter season there were observed freezing and limitation of Lolium perenne L. share in the sward of the first regrowth, yet at the same time a fast regeneration of this species in the successive years of use.

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