1. College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China
2. Tonghua Academy of Agricultural Sciences, Meihekou 135000, China
3. Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
4. State Engineering Laboratory of Maize, Institute of Agricultural Resources and Environment, Jilin Academy of Agriculture Sciences, Changchun 130033, China
5. Farming and Animal Husbandry Bureau of Tongliao, Tongliao 028005, China