The Responses of Seed Germination of Glycyrrhiza uralensis under Three Kinds of Salt Stress

Effects different concentration of NaCl,Na2SO4 and NaHCO3 on Glycyrrhiza uralensis Fisc.seed germination were studied in this paper,it will provide the reference for the selection of suitable saline-alkali land to growing Glycyrrhiza uralensis.The results showed that the germination starting and germination peak were delayed in Na2SO4 and NaCl stress.The inhibition on germination in Na2SO4 stress was more severe than NaCl treatment under the same condition.With the increasing concentration of NaHCO3,the germination rate,germination potential and germination index all declined.But there were no influence on the germination starting.The concentration of 25 mmol/L NaHCO3 had no significant effect on the germination rate,germination potential and germination index.The germination rate increased under 80mmol/L NaCl or Na2SO4 treatment.