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.
出处
《玉米科学》
CAS
CSCD
北大核心
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