单粒型甜菜新品种“中甜─吉甜单一”的选育

The Breeding Process of the Sugarbeet Monogerm Variety Zhongtian-Jitian Dan 1

利用引入的国外杂种选育二环系，成功地育成生产力稳定，经济效益较高，抗病性较好的“中甜—吉甜单一”单粒型甜菜新品种，实现了吉林省甜菜单粒种零的突破。本文报导了选育“中甜—吉甜单一”的历史背景和从初级到高级各选育阶段的一系列研究数据；讨论了从国外引进杂种中选育单粒二环系的途径来创新和丰富我国甜菜单粒种资源库的必要性、可行性和有效性，以及在充分利用单粒雄性不育系培育高强优势杂种的同时，注意利用单粒二环系育成普通遗传单粒种的可能性与现实性。论述了“中甜—吉甜单一”品种的特点和生产效应。

The detail on the breeding process of the sugarbeet monogerm varietyZhongtian-Jitian Dan 1 was described in this paper. The variety was thefirst sugarbeet monogerm variety bred by the sugarbeet and sugar industryinstitute of Jilin proyince in Northeast China. The biological alld economiccharacters of the yariety was compaared with the sugarbeet monogermvariety HYB13 of Denmark and some sugarbeet multigerm yarieties of China.The breeding method on Zhongtian-Jitian Dan 1 was discussed.