Abstract: The aim of this investigation was to examine the effect of osmocon-ditioning on soybean seeds.By using 30% PEG 6000 to soak the seedsfor 2 days at 17℃,the germination rate and vigor index of seeds wereincreased when they germinated at lower temperature(11℃)or highertemperature(32-35℃)or ordinary temperature(17℃)or soaked with 0.1-0.2M NaCl solution.Under the stress conditions,the effect of osmotictreatment might be much obvious than that in optimal condition.Whensoybean seeds were planted early in moist and...