摘要
本文通过对冀西北地区自然地理生态因素的分析,对该区生态型进行了分类,划分为暖区、较暖区,冷凉区和高寒区,提出了各生态区玉米育种的目标要求,并对该区生态育种中的几个关键性问题进行了详细阐述。
By analysing the ecological factors of physical geography in the northwest of Hebei Province, the ecotypes of this region were classified in this paper. They were warm district, warmer district, cool district and cold district. Objectives and requirements for the ecological breeding of corn in each district were also put forward. Key questions on ecological breeding in this district were discussed.
出处
《河北农业科学》
2000年第4期46-49,共4页
Journal of Hebei Agricultural Sciences
