为加快提升玉米育种创新能力,促进体系内外育种经验和技术交流,选育高产耐密宜机械收获的新品种,国家玉米产业技术体系育种与种子研究室组织有关专家和试验站长,于2013年2月19～21日对引进的美国玉米自交系、体系三大区域交换的优良自交系、部分新近选育的优良组合进行田间考 In order to speed up the innovation capability of maize breeding, promote the breeding experience and technical exchange within and outside the system, breed new varieties with high yielding density and mechanical harvesting, and organize relevant experts and test owners of national maize industry technology system breeding and seed research institute in 2013 February 19 ~ 21 on the introduction of the United States corn inbred lines, the system of three major regions of the exchange of good inbred lines, some of the newly bred good combinations of field test