Effects of NaCl Stress on Seeds Germination and α-amylase of Soybean

[Objective]The purpose of research was to discuss the effects of NaCl stress on seeds germination and α-amylase of soybean.[Method] NaCl solutions with defferent concentration were used for saline stress to measure and analyze the seed germination percentage,vigor,index and amylase of soybean by saturating the seeds.[Result]The results showed that the germination rate,germination index of the seeds treated with NaCl concentration(≤60 mmol/L) was not significantly comparing with control.However,the germination index and germination rate of those seeds which were treated with NaCl solutions at higher concentration(≥90 mmol/L) was swelled evidently.The activiy of amylase was the highest in the third day and dropped along with the increase of NaCl concentration.[Conclusion]This study will provide the scientific basis for choice of soybean seeds germination conditions.