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甜菜多倍体新品种协作３０２，是利用甜菜二倍体与四倍体品系的差异，以后代优良性状与双亲优化组合的生理基础为依据，通过用反映品种特性的生理指标选择、组合以及杂种优势的早期生理鉴定，从而培育成功有明显杂种优势的丰产、偏高糖、抗褐斑病性强、适应性较广和品质较好的新品种，是甜菜杂种优势生理基础的实践。
Sugarbeet polyploid new breed collaborative 302 is based on the difference of diploid and tetraploid strains of sugar beet and based on the physiological basis of the excellent traits of the progeny and parents to optimize the combinations. By using physiological index selection, combination and hybrid Therefore, it is a practice to develop physiological basis for the heterosis of sugar beet by cultivating new varieties with high yield, high sugar, strong resistance to brown spot, wide adaptability and good quality, which have obvious heterosis.