显微化学观察表明，越冬期间，葡萄枝条组织中的淀粉、还原糖、脂肪及拟脂类物质的分布，数量和变化动态与其抗寒性密切相关。主要表现为抗寒种类淀粉积累早而数量多，水解晚但速度快且彻底，还原糖一直保持较高水平且韧皮部多于木质部；脂肪及拟脂类物质含量高，密集于形成层处，组织间含量与其抗寒力正相关。抗寒性强的种类其枝条木栓层厚，细胞层数多，木栓化程度高。 Microscopic observation showed that during winter, the distribution, quantity and dynamics of starch, reducing sugar, fat and lipid-like substances in grape branches were closely related to their cold resistance. The results showed that the accumulation of starch in early-maturing and cold-resistant species was higher than that in xylem at late but late stages of hydrolysis, but the rate of reducing sugar remained high and phloem was more than xylem. The content is positively correlated with its cold resistance. Cold hardiness of its branches thick layer of cork, cell layers and more, a high degree of wood bolt.