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甜菜多倍体新品种呼育３０２为多倍体多粒型杂交种，其母本为四倍体双丰１号，父本为二倍体内三７１－１．呼育３０２品种属于标准型（Ｎ）品种，有较强的杂种优势，抗病性（褐斑病、黄化毒病）较强，适应性广。在１９８７～１９８８年内蒙古自治区甜菜品种区域试验中，其平均块根产量、含糖率和产糖量比对照品种工农４号（ＣＫ）提高１１．０％、０．３度和１３．９％，在１９９０年的生产示范中，其块根产量、含糖率和产糖量比对照品种提高１８．２％、０．９度和２８．７％。
The new sugarbeet polyploid variety Huyou 302 is a polyploid and multi-grain hybrid. Its female parent is tetraploid Shuangfeng No.1 and its male parent is diploid 71-1. Hu-Yu 302 varieties belong to the standard (N) varieties, have strong heterosis, disease resistance (brown spot disease, yellow disease) strong adaptability. In the regional trials of sugarbeet varieties in Inner Mongolia Autonomous Region from 1987 to 1988, the average tuber yield, sugar content and yield of sugar were 11.0%, 0.3% and 13.9% higher than those of CK, In 1990 production demonstration, the root yield, sugar content and sugar yield increased by 18.2%, 0.9% and 28.7% than the control varieties.