中国农业科学院甜菜研究所育成的甜研305、甜研306两个雄性不育多倍体品种,经国家“七五”攻关甜菜品种区域试验鉴定验收,并于1993年6月由轻工业部甜菜品种审定委员会审定,命名为推广良种。甜研305与甜研306在黑龙江(对照品种双丰8号)、吉林(对照品种范育1号)两省甜菜品种区域试验中,分别较当地对照种块根产量提 Chinese Academy of Agricultural Sciences beet Institute bred sweet research 305, sweet study 306 two male sterile polyploid varieties, the national “Seventh Five-Year” key areas of sugar beet varieties tested for acceptance and in June 1993 by the Ministry of Light Industry beet varieties Validation Committee validation, named for the promotion of improved varieties. In the regional trials of sweet sugar 305 and sweet sugar 306 in Heilongjiang (control variety Shuangfeng 8) and Jilin (control variety Fanyu 1), the yield of tuberous root