1. College of Agronomy, Inner Mongolia Agricultural University, Huhhot 010019, China
2. Bayannaoer Academy of Agricultural and Animal Sciences, Bayannaoer 015000, China
3. School of Biological Science and Technology, Baotou Teachers’ College, Baotou 014031, China
4. Chifeng Forest and Grassland Protection and Development Center, Chifeng 024005, China