丹玉旅系的选育及在我国玉米育种和生产中的作用

丹玉旅系是旅大红骨类群中主要自交系,其代表自交系旅28、旅9、旅9宽、E28、丹340等由于具有高配合力、抗逆性强、适应性广、综合农艺性状优良的特点,被全国各育种单位广泛应用.自70年代以来,用丹玉旅系组配的玉米杂交种面积在6 667 hm²以上的有59个,累计种植面积达3 400万hm²以上,年最大种植面积529.6万hm²,已成为我国玉米育种和生产中重要的种质资源,确立了旅大红骨类群在我国玉米育种与生产上的重要地位,在玉米杂交种生产上起到巨大的推动作用。

The Breeding of Danyu Inbred Lines of Lu Series and Their Effect to the Corn Breeding and Production in

Danyu inbred lines of Lu Series are the dominating inbred lines in Luda Red Cob Group.The representative Danyu inbred lines of Lu Series,such as Lu28,Lu9,Lu9 Kuan,E28,Dan340 ete.,have the characters of high combining ability,high resistance to adversity,wide adaptability,all-around agricultural properties excellence and have been used in many corn breeding units in China.Since the 70th of this century,there have been 59 hybrid maize varieties combined with Danyu inbred lines of Lu Series planted for 6667 hectares each,planted for more than 34 million hectares altogether and planted for the latgest area of more than5.296milion hectares per year.Danyu inbred lines of Lu Series,which have been the important germplasm resources of corn,have established the remarkable situation of Luda Red Cob Group in the corn breeding and have played significant roles in hybrid maize production in China.