2000年春,吴桥县仓上村自河北辛集引进了100株二十一世纪桃苗,栽植了1333.4m~2。2003年3月上旬,笔者在该桃园观察到桃树有冻害,随即进行了调查。结果表明,二十一世纪桃幼树冻害十分严重,冻害株率为100％。冻害症状:幼龄桃树自地表嫁接口向上0.5m范围内根颈部、主干及大分枝下部的皮层已严重变褐,木质部也明显变褐,剖开嫁接部位观察,病、健部交界整齐而分明,枝干表皮变深褐色,外观十分明显;地面0.5m以上所有枝干、梢皮层均明显变褐,2002年带叶秋剪(9月份)剪口处3～4cm范围内枝条变褐程度更重,已近黑色并见干枯。估计幼树地上部自嫁接部位以上全部死亡。而同园栽植的早凤王、重阳红、新川中岛、大久保等品种和邻村 The spring of 2000, Wuqiao County warehouse village from Hebei Xinji introduced 100 twenty-first Century peach, planted 1333.4m ~ 2. In early March 2003, the author observed in the peach tree frost damage, and immediately conducted a survey. The results show that twenty-first Century peach tree frost damage is very serious, frozen strain rate was 100%. Frost damage symptoms: young peach trees from the surface grafting 0.5m within the neck, the main trunk and large branches of the lower cortex has been severely browned, xylem also significantly brown, cut open the graft site observation, disease, health Department at the junction of neat And clear, dark brown epidermis branches, the appearance is very clear; 0.5m above the ground all the branches, shoot cortex were significantly brown, 2002 with the leaf fall cut (September) within 3 ~ 4cm notch cut branches brown More serious, almost black and see dry. It is estimated that all of the above-ground parts of saplings were self-grafted. The same garden planted early Fengwang, Chongyang red, Shinchuaka Nakajima, Okubo and other varieties and neighboring villages