The effect of utilization method on the changes of species composition of sward with share of Festulolium loliaceum (Huds.) P .Fourn.

摘要

In recent time,there were observed great interest of grassland,especially pastures.Many pasture studies are connected with simulated utilization (frequent cutting in pasture maturity),without zoogenic factors compliance. Perennial utilization affects simplification of species composition of sward and its degradation, especially in the postboggy habitats (Baryta,2001).The most important feature is stable species composition of sward with share of valuable grasses and legumes.Breeders seek new genotypes,which would be characterized by best adaptation to stress environmental conditions. Recently attention has focused on the crossing of Lolium and Festuca species to obtain hybrids exhibiting desirable traits of both parents.Key objectives are to combine the persistency, winterhardiness and drought tolerance of fescues with the high herbage yields and quality of ryegrasses.One of the species can be F.p ratensis × L.perenne hybrid [Festulolium loliaceum] (Kulik et al.,2005).The aim of this work was to analyse the effect of utilization method on the changes of species composition of sward with share of Festulolium loliaceum.