1. Key Laboratory of Forage Cultivation; Processing and High Efficient Utilization of Ministry of Agriculture; Key Laboratory of Grassland Resources; Ministry of Education; College of Grassland, Resources and Environment; Inner Mongolia Agricultural University; Hohhot China
2. College of Agriculture; Inner Mongolia University for Nationalities; Tongliao China
3. Japan International Research Center for Agricultural Science (JIRCAS); Tsukuba Ibaraki Japan