Effect of Salt Stress on the Germination of Zoysia japonica and Festuca arundinacea Seeds

The different concentration mixture with the molar ratio of NaCl∶Na 2SO 4=9∶1,30,60,90,120,150,180 mmol/L and 210 mmol/L,were used for salt stress to measureed and analysed the germination test of Zoysia japonica and Festuca arundinacea seeds.The results showed that the germination percentage of Zoysia japonica seeds decreased,and the germination percentage of Festuca arundinacea seeds firstly increased and then decreased by parabola curve with the increase of the concentration of salt solutions.The germination percentage with 120 mmol/L and germination vigor with 90 mmol/L of Zoysia japonica seeds were markedly lower than CK,respectively.The germination percentage with 150 mmol/L and the germination vigor with 120 mmol/L of Festuca arundinacea seeds were markedly lower than CK,respectively.The germination percentage of Zoysia japonica and Festuca arundinacea seeds was half of CK when the salt concentrations were 166.4 and 168.4 mmol/L.Overall,Zoysia japonica exhibited greater germination ability under salt stress than Festuca arundinacea.