高淀粉、高产、多抗玉米杂交种正红115的选育研究  

Breeding on Maize Hybrid Zhenghong 115 with High Starch Content,High Yield and Multi-resistances

作　　者：柯永培[1] 袁继超[2] 石海春[2] 余学杰[2] 孙群[1] 赖仲铭[2] 杨志荣[1] 

机构地区：[1]四川大学生命科学学院,成都610064 [2]四川农业大学农学院,四川雅安625014

出　　处：《玉米科学》2005年第2期49-51,共3页Journal of Maize Sciences

基　　金：四川省"九五";"十五"育种攻关项目(2001-3-13);四川省教育厅重点科研开发项目

摘　　要：以美国玉米带杂交种3163为基础材料,通过南北穿梭同步定向育种新方法,用自交系48-2作测验种在S1和S3早期分离世代连续进行早代测定和定向选育,同步育成玉米新自交系K169及其组配的杂交种正红115(K169×48-2)。正红115子粒粗淀粉含量高达75.7%,并具有综合品质优、产量高、抗病及抗倒伏力强、株型好和适应性广等特点。正红115适宜丘陵山区种植,具有广阔的推广应用及加工利用前景。By using the hybrid 3163 from the U.S. Corn Belt as the source pop ulation, through the novel method of synchronous directive shuttle breeding(SDSB ) between North and South, a new maize inbred line K169 and the corresponding hy brid Zhenghong 115(K169×48-2) have been developed synchronously by repeating ea rly generation test with the inbred line 48-2 as tester in early S1 and S3 segre gating generations followed by directive selection. Zhenghong 115, with starch c ontent of kernels reaching up to 75.7%, which has plenty of merits, including th e quality grains, high yields, multi-resistances to diseases and lodgings, relat ively ideal type and wide adaptation. Zhenghong 115 is adaptable for planting in hilly areas, and has broad prospects for extension and processing utilization.

关 键 词：玉米杂交种 高淀粉 多抗 粗淀粉含量 基础材料 定向育种 定向选育 分离世代 丘陵山区 利用前景 推广应用 自交系 玉米带 测验种 产量高 抗倒伏 适应性 同步 穿梭 早代 组配 育成 子粒 质优 抗病 株型 

分 类 号：S513[农业科学—作物学] S532