西南区是中国玉米主产区之一，该区域突破性品种少，自然灾害频繁，单产不高、总产不足。只有不断选育出适应西南生态和生产条件的突破性高产、优质、玉米杂交种推广应用，才能迅速提高西南区玉米单产和总产，满足经济发展对玉米的需求。全面分析西南区玉米育种面临的主要问题；对今后的玉米突破性育种目标和技术发展方向等进行了阐述。

Southwest is one of the major maize producing areas in China,but there are few ground-breaking varieties and frequent natural disasters,and per unit area yield and total yield are both insufficient in this region.Therefore,only by breeding to ground-breaking high-yield hybrids adapt to the ecological and producting conditions to popularize,can we rapidly improve the yield in the southwest to meet the needs of economic development for maize.This paper made comprehensive analysis on the main problems of maize breeding,and described the aim of breakthrough in maize breeding and technology development for future.

“863”计划(2009AA101103)、国家“十一五”支撑计划(200 6BAD01A03)