Effects of ice encasement during winter on different cultivars of Phleum pratense and Lolium perenne in Norway

摘要：

Global warming may lead to milder winters at high latitudes (RegClim 2005).Fluctuating temperatures and more precipitation can increase the risk of ice encasement, although more research is needed to verify this assumption.Farmers may in future prefer to grow Lolium perenne ( L.), which is forage grass more resistant to grazing and frequent cutting than the currently used Phleum p ratense (L.).P.p ratense is generally very tolerant to ice encasement and probably more so than L.perenne, although there may be variety differences.The aim of this study was to compare the tolerance of different cultivars of P.p ratense and Lolium perenne to ice encasement.

关键词： ice encasement frost tolerance grass timothy perennial ryegrass

作者: M.Jφrgensen L.φstrem A.K.Bakken M.H(o)glind

作者单位: Norwegian Institute for agriculturaLand Environmental Research (Bioforsk)Holt,Tromso Norwegian Institute for agriculturaLand Environmental Research (Bioforsk)Fureneset,Hellevik I Fjaler Norwegian Institute for agriculturaLand Environmental Research (Bioforsk) Kvithamar;Stjφrdal Norwegian Institute for agriculturaLand Environmental Research (Bioforsk)Saerheim,Klepp,Norway

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）