玉米自交系lx9801的选育、应用及改良  

Breeding,Application and Improvement of Maize Inbred Line lx9801

作　　者：孙琦[1] 谭业杰 孟红[1] 赵苏娴[1] 曾廷儒 岳润清 鲁守平[1] 李文才[1] 孟昭东[1] SUN Qi;TAN Ye-jie;MENG Hong;ZHAO Su-xian;ZENG Ting-ru;YUE Run-qing;LU Shou-ping;LI Wen-cai;MENG Zhao-dong(Maize Institute,Shandong Academy of Agricultural Sciences/National Engineering Laboratory of Wheat and Maize,State Key Laboratory of the Ministry of Agriculture on Corn Biological and Genetic Breeding in the Northern of Huang Huai Plain,Jinan 250100;Seed Corporation of Laiyang City,Laiyang 265200,China)

机构地区：[1]山东省农业科学院玉米研究所/小麦玉米国家工程实验室/农业部黄淮海北部玉米生物学与遗传育种重点实验室,济南250100 [2]莱阳市种子公司,山东莱阳265200

出　　处：《玉米科学》2023年第3期9-15,共7页Journal of Maize Sciences

基　　金：国家现代农业产业技术体系项目;山东省自然科学基金项目(ZR2020MC111)。

摘　　要：玉米自交系lx9801是我国重要的黄改系之一,来源为H21×502为基础选育的二环系。lx9801的选育立足于黄改系的改良,创造性地将旅大红骨种质的优良基因有效融入黄改系种质中。截至2019年,直接利用lx9801作为亲本审定的杂交种有32个,其中国审品种6个;利用lx9801的衍生系作为亲本审定的玉米杂交种60多个。lx9801的改良主要是利用塘四平头群自交系进行群内改良,其次是利用PA种质、旅大红骨种质或结合塘四平头种质进行性状改良。The inbred line lx9801 was originated from H21×502.Basing on the improvement of the Huanggai lines,the fine genes of the Lvdahonggu germplasm were integrated into the Huanggai line.By the end of 2019,32 approved hybrids have been bred with lx9801 as parent and 6 hybrids have been approved by the National Crop Va⁃riety Approval Committee.More than sixty maize hybrids were approved from the derivative lines of lx9801 as par⁃ent.The improvement of lx9801 included two aspects.First,the inbred lines from Tangsipingtou population were used among the same population.Second,PA germplasm,Lvdahonggu germplasm or combing Tangsipingtou germ⁃plasm were applicable to improve the traits.

关 键 词：玉米 自交系选育 lx9801 

分 类 号：S513.031[农业科学—作物学]