试验用7种浓度的PEG溶液来创造大豆种子吸水的不同水势环境。结果表明:种子在低渗透势溶液中缓慢吸水比在清水中快速吸水,其发芽势、发芽率、发芽指数和活力指数都明显提高,田间出苗率达极显著差异,同时提高幼苗干重、鲜重。大豆种子在-1.1860MPa的PEG溶液中吸水48小时,种子活力提高。 Seven concentrations of PEG solution were tested to create different water potential environments for soy seed to absorb water. The results showed that: the seeds in the low osmotic potential of the slow water absorption than in the water quickly absorb water, the germination potential, germination rate, germination index and vigor index were significantly increased in field emergence rate was significantly different, while increasing seedling dry weight, fresh weight. Soybean seeds in the -1.1860MPa PEG solution for 48 hours, the seed activity increased.