耐密型玉米育种探讨

摘要

Gradually increasing in maize planting density is not only a main way to improve yield but also an important measure to improve selection effect in breeding. Based on actual situation of maize production and poor breeding base in China, the paper discussed breeding connotation, objectives, breeding origin, germplasm base, breeding technology of inbred lines, and identification technology of hybrid for high density tolerant maize.%玉米种植密度逐步提高不仅是玉米产量不断提高的主要途径,也是育种中提高选择效果的重要手段.结合我国玉米生产和育种基础单薄的实际情况,对耐密型玉米品种的内涵、选育目标、选育根源、种质基础、自交系选育技术和杂交种鉴定进行了探讨.