甜菜遗传单粒型多倍体杂交种九甜单一号的选育

Bfeeding of Genetic Monogerm Polyploid Hybrid Jiutiandan—1

九甜单一号系采用单粒二倍体雄不育系九三ＭＳＡ－１为母本，多粒四倍体授粉系ＧＷ６５－３为父本配制而成的遗传单位型多倍体杂交种。经生产试验鉴定，其稚产量、含糖率、产糖量分别比对照品种甜研３０１提高１６．５％、０．６８度、２１．４５％。该品种丰产性突出、含糖率稳定、抗病性强，适宜大面积机械化精量点播和纸筒有苗移栽，属丰产型甜菜品种。

Jiutiandan-1 is a hybrid of genetic monogerm polyploid which crossed with MSA一1（diploid）female and GW 65-3（tetraploid）male，this variety has identified with demonstra-tion，the root yield and sugar content，sugar yield are higher 16．5％，0．68％，21．45％thanCK Tianyan 301，this varietyed has high yield and stable sugar content and high disease resis-tance，this variety can be used as precision drill in large area and seedling nursery with paper-pot，it is E一Dtype.