Effects of heavy metals Cu, Ni, and Pb on seed germination characteristics of Halogeton glomeratus under salinity and drought stress

• HU Na, 
• BIAN Xiuxiu, 
• YAO Lirong, 
• WANG Juncheng, 
• HOU Jingjing, 
• SI Erjing, 
• YANG Ke, 
• MENG Yaxiong, 
• LI Baochun, 
• MA Xiaole, 
• WANG Huajun