Results of variety trials in 1997 to 1999 with Italian ryegrass and hybrid ryegrass.

摘要

In 1997 to 1999, 45 varieties of Lolium multiflorum and 24 varieties of Lolium hybridum were assessed at five different experimental sites in Switzerland. All the varieties were grown in pure stands and in mixture with red clover [Trifolium pratense]. The parameters assessed were forage yield, juvenile growth, competitive ability, resistance to diseases, digestibility and persistence. Based on the results the following varieties are newly put on the Swiss List of Recommended Varieties of Forage Plants: Lolium multiflorum: Alces, Barlizzi, Gemini, Oryx, Rangifer and Zebu; Lolium hybridum: Barsilo, Delicial, Ibex, Rusa, Tapirus and Tirna.