聚乙二醇(Polyethylenc glycol,简称 PEG)是一种高分子渗压剂,其突出的优点是它本身不能渗入活细胞。七十年代中期,Heydecker 等首先用 PEG“引发”洋葱种子试验,获得出苗整齐的效果。最近,Woodstock 等报道,PEG 有修补老化种子膜损伤提高活力的作用。鉴于在种子加工、贮藏过程和农、林、园艺的播种实践中,经常遇到与膜损伤有关的活力下降以致丧失的许多实际问题,我们选用葡萄和大豆种子为材料,进行改进的“引发”处理,促进了种子萌发,提高了出苗率。为开展 PEG 应用及其作用机理的研究提 Polyethylenc glycol (PEG) is a macromolecule osmoticum agent that has the outstanding advantage that it can not penetrate into living cells by itself. In the mid-seventies, Heydecker et al. First used the PEG to “trigger” the onion seed test to obtain a neat and tidy appearance. Recently, Woodstock et al reported that PEG has the effect of repairing the damage of aged seed membranes and improving the vitality. In view of the many practical problems often encountered in seed processing, storage, and sowing practices in agriculture, forestry and horticulture, the loss of viability associated with membrane damage has often been encountered, we used grapes and soybean seeds as materials for improved “priming” Treatment, to promote seed germination, increased germination rate. To carry out the application of PEG and its mechanism of action research