1983年冬至1984年春,长春地区栽培的葡萄树遭受严重冻害。本园栽培的300株贝达砧臣峰葡萄几乎全部冻死,春季挖除死树时发现有4株巨峰葡萄同往年一样发芽了,并且长得粗壮。这一现象引起了我们的注意。经仔细观察,发现这些存活植株的砧段上都长有几个大小不等的本砧营养枝,根系新鲜、充实。而受冻害的植株,其砧木上未发出本砧营养枝,根系均严重受冻。分析认为,葡萄植株 During the winter of 1983 to the spring of 1984, grapevines cultivated in Changchun suffered serious frost damage. Nearly all of the grapevines of the 300 Beida Anvil Hill cultivated in the park were frozen to death. During the excavation of the dead trees in spring, four Kyoho grapes were found to germinate as in previous years and grow thick. This phenomenon caught our attention. After careful observation, it was found that the anvils of these surviving plants all had several vegetative shoots of different sizes, with fresh roots and abundant roots. Frost damage to the plants, the rootstocks did not issue its rootstock vegetative branches, root system are severely frozen. Analysis suggests that grape plants