摘要： 以Reid类群系8112作母本，旅大红骨类群选系360选为父本杂交育成了玉米新杂交种--GS豫玉11号（90-1）.该杂交种在1990～1991年河南省玉米区试中比对照种增产14.9%,居首位；在1992～1993年全国夏玉米区试中，晋、鲁、豫、皖、苏五省平均比对照掖单2号增产15.7%,居首位。在全国10多个省试验示范中，比对照种增产8.7%～47.5%,多居一、二位。群体叶面积变化为前快中稳后慢的曲线，植株氮代谢水平高，干物质积累快，总量大，分配合理，经济系数高。高抗多种病害，竖叶大穗，综合性状优良，品质好，中熟，适应性广，制种产量高，适合中等以上肥力地种植。

关键词: 玉米, 豫玉11号, 产量品质, 抗病性, 适应性

Abstract: GS Yuyu 11 is a wide adapting corn hybrid trials conducted in Henan province during 1990-1991 showed that its average yield of 529 kg/mu was significantly higher than that of check,whose yield increased by 14.9% and was the maximum one.Results from trials conducted in five provinces during 1992-1993 also demonstrated that its average yield of 512.3 kg/mu was significantly higher than that of control corn Yedan 2,the yield increased by 15.7%,and was the maximum too.Demonstration studies in ten provinces indicated that the yield increments ranged from 8.7% to 47.5%.The maximum yield reached 900 1 kg/mu in one demonstration experiment in summer corn in Henan.The growth of populations′leaf area is fast in the early stage,stable in the middle stage and slow in the late stage.The level of nitrogen metabolism is high,dry matter accumulation is fast and allotted rationally.Therefore,the yield increase is siginificant.Yuyu 11 is resistant to several diseases and also resistant to lodging.The hybrid has good characters:high quality,medium maturity,wide range of suitable,high seed yield. It grows well in the soils with high and medium fertility in most provinces of the country.

Key words: Corn, GS Yuyu 11, High yield, High quality, Disease resistance

中图分类号: 

• S513.03