Kierunki zmian składu gatunkowego runi na trawnikach rekreacyjnych
Directions of species composition of sward on recreational lawns

Summary/Abstract: In this paper we have shown the result of 5-years experiment related to direction of floristic composition of sward, designed and commercial mixtures which can be sowing on recreational lawns in Masurian Lakeland. Exact experiment microfields founded on 14 May 1998 with split-plot method, three times repeted, on antropogenic soil, formed from loamy sand. Floristic composition was estimated on a basis of botanical and weighting analyses every year in autumn. It was shown that species composition of mixtures on recreational lawns changed dynamically. In the first year of experiment Lolium perenne (leadnig species) was dominated species of sward but after frosty winter has been withdrawn. The most durable were Festuca rubra (leadnig species) and Poa pratensis (co-component). The other co-component of mixtures: Festuca ovina, Festuca heterophylla, and Agrostis capillaris were in sward in small part. Among different variants the most profitable floristic composition had mixture no 11: Poa pratensis Alicja, Festuca rubra Nimba, Festuca rubra Adio, Agrostis capillaris Igeka and commercial mixture Johnson “Wimbledon”.

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