由于防寒措施不足或气候不正常,葡萄植株越冬时容易受冻。枝蔓受冻只需剪除受冻枝蔓并加强肥水管理即可,若根系受冻则要抓紧时间采取措施抢救。葡萄出土后,若发现枝条剪口无伤流,就要立即扒士查根。根表皮腐烂,表层与木质部极易分离或木质部已变成黑褐色,这便是已冻死的根;根皮黄土色,木质部黄褐色,是半死的根;根皮接近土色,皮层淡黄色,木质部乳黄色,是活根。根系冻死量达50％以上时,一般植株很难恢复健壮生长,必须在主蔓基部平茬,让 Due to inadequate cold measures or climate is not normal, grape plants vulnerable to overwintering cold. Only need to cut off the frozen vine stalks and strengthen the management of fertilizer and water, if the root system is frozen, we must seize the time to take measures to rescue. After the grapes were unearthed, if you find that the branches cut no injury stream, we must immediately Paragang. Root epidermis decay, surface and xylem easily separated or xylem has become dark brown, which is the root has been frozen to death; root bark loess, xylem yellow brown, is the dead root; root bark close to earth color, cortex pale yellow , Xylem milk yellow, is living root. When the amount of freeze-dead reached more than 50%, it is hard for plants to recover their robust growth.