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甜菜多倍体新品种双丰309是中国轻工总会甜菜研究所利用四倍体双丰415的3个系号与二倍体双丰8号杂交而成，经过多年的小区、大区及生产试验后，目前已大面积推广”使用。为了对双丰北9的丰产、高糖特性的进一步验证，达到尽快更新品种的目的，我厂在产区的五个市县进行了多长次
Sugar beet polyploid new breed Shuangfeng 309 is the beet Institute of China National Light Industry Association tetraploid double-HS 415 using 3 lines and diploid Shuang-Feng hybrid 8, after years of community, district and After the production test, it has been popularized in large scale. "In order to further verify the high yield and high sugar characteristics of Shuangfeng 9 and to achieve the purpose of updating varieties as soon as possible,