玉米自交系鲁原92的选育及应用

利用辐照技术与常规方法相结合选育出的鲁原92玉米自交系具有配合力高、抗逆性强、自身产量高、综合农艺性状好的优点，成为我国当前重要的骨干自交系之一，国内育种单位直接或间接利用该系已育成通过国家和省级审定的品种19个。据有关省级种子管理部门的不完全统计，利用该系组配成的品种在生产上累计推广面积达520万hm2，创造社会经济效益18.82亿元。

Development and Application of Maize Inbred Line Luyuan 92

The inbred line Luyuan 92, which was bred by irradiation technology and conventional method, is with many good traits, such as high combining ability, strong stress resistance, high yield and good agronomical charactors. It is one of the key inbred lines in China. 19 varieties bred using Luyuan 92 directly or indirectly had been passed national or provincial approval. According to the incomplete statistics of seed management departments in some provinces, the varieties from Luyuan 92 had been planted 5.2×106 hm2, the economic benefit reached RMB 18.82×108 till 2008.