由于生物膜中脂类的组分比较复杂 ,同时又有膜蛋白以及其他各种因素的影响 ,即使温度在生理温度范围以内变化 ,也能引起分相现象。这种分相影响脂膜的透性 ,从而可以解释低温冷害或低温发生的原因。膜脂脂肪酸不饱和程度越高 ,抗寒性越强。尽管降温速度影响不饱和脂肪酸的形成 ,但是品种的遗传性才是抗性的基础。利用电导值和统计运算 ,鉴定果树的抗性是可行的 Due to the complex composition of lipids in the biofilm, together with the effects of membrane proteins and various other factors, the phase separation can occur even if the temperature changes within the physiological temperature range. This phase separation affects the permeability of the lipid membrane, which can explain the causes of chilling injury or hypothermia. The higher the degree of fatty acid fatty acid unsaturation, the stronger the cold resistance. Although the rate of cooling affects the formation of unsaturated fatty acids, the heritability of varieties is the basis of resistance. Using conductivity and statistical calculations, it is feasible to identify the resistance of fruit trees