Comparison of salt tolerance during the germination period of 12 grass species under severe salt stress

• LIU Lu, 
• ZHANG Yuequn, 
• WANG Jing, 
• GU Weibing, 
• ZHANG Jianquan, 
• LIU Qihua, 
• WANG Huihui, 
• ZHANG Xinxin, 
• CHAI Qi