玉米新品种永优1593选育研究

Breeding of New Maize Variety‘Yongyou 1593’

以增强品种适应性为主线,围绕改良Reid与黄改系的杂优模式。采用“高、大、严”的育种思路,创制出优良玉米自交系Y516和浚59,同时组配出抗逆性好、产量高、适应性强的玉米新品种永优1593,2019年通过国家审定。通过分析该品种的亲本来源、选育方式及品种表现等,提出利用遗传基础丰富的P群种质改良温带种质,利用国内核心种质改良驯化国外种质,同时运用现代生物育种技术以提升种质创新精准性,最终实现品种选育的高效模式。

To enhance the adaptability of wheat varieties,our focus lies in improving the hybrid pattern of Reid and Huanggai inbred lines.Using the breeding approach of“high planting density,large population,strict selection”,the excellent maize inbred lines Y516 and Xun 59 were developed.Concurrently,the new maize variety‘Yongyou 1593’,characterized by multi resistance,high yield and wide adaptability,was examined and approved by the National Maize Variety Examination and Approval Committee in 2019.Through an analysis of the parental source,breeding method and variety performance,it is proposed to use P group germplasm with rich genetic basis to improve temperate germplasm,use domestic core germplasm to improve and domesticate foreign germplasm,and use modern biological breeding technology to improve the precision of germplasm innovation,thereby achieving the efficient pattern of variety selection.