一、前言鉴定冬小麦品种的抗冻性一般采用田间试验、室内返青以及观察生长锥的颜色等方法,还有的用镜检细胞看是否发生冰冻假质壁分离(Frost psendop lasmolysis)判断受冻细胞的死活。1973年,Lyons 提出细胞膜系统的位相变化(由液晶相变为凝胶相) I. Introduction Identification of winter wheat cultivars commonly used in field trials of frost resistance, indoors glaciers and observe the growth of the color of the cone and other methods, and the use of microscopic examination of cells to see whether the occurrence of frozen fission wall isolation (Frost psendop lasmolysis) to determine the frozen cells Life and death. In 1973, Lyons proposed the phase change of the cell membrane system (from liquid crystal to gel phase)