College of Plant Science and Technology Huazhong Agriculturial University/Key Laboratory of Crop Physiology Ecology and Cultivation(Middle Reaches of the Yangtze River) Ministry of Agriculture and Rural Affairs Wuhan 430070 P.R.ChinaInstitute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology&Ecology Ministry of Agriculture and Rural Affairs Beijing 100081 P.R.ChinaInsititute of Maize Science Tongliao Academy of Agricultural Sciences Tongliao 028042 P.R.China;
College of Life Science Inner Mongolia University for the Nationalities Tongliao 028000 P.R.China;
Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology&Ecology Ministry of Agriculture and Rural Affairs Beijing 100081 P.R.China;
College of Plant Science and Technology Huazhong Agriculturial University/Key Laboratory of Crop Physiology Ecology and Cultivation(Middle Reaches of the Yangtze River) Ministry of Agriculture and Rural Affairs Wuhan 430070 P.R.China;
College of Plant Science and Technology Huazhong Agriculturial University/Key Laboratory of Crop Physiology Ecology and Cultivation(Middle Reaches of the Yangtze River) Ministry of Agriculture and Rural Affairs Wuhan 430070 P.R.China;
College of Agronomy and Biotechnology China Agricultural University Beijing 100193 P.R.China;
College of Plant Science and Technology Huazhong Agriculturial University/Key Laboratory of Crop Physiology Ecology and Cultivation(Middle Reaches of the Yangtze River) Ministry of Agriculture and Rural Affairs Wuhan 430070 P.R.China;
Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology&Ecology Ministry of Agriculture and Rural Affairs Beijing 100081 P.R.China;
Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology&Ecology Ministry of Agriculture and Rural Affairs Beijing 100081 P.R.China;
double-maize cropping system; weather conditions; grain yield; North China Plain;