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采用比较生理学的方法研究了糖用甜菜和饲用甜菜生育期间蔗糖变化规律及其在各器官中的分配动态。结果表明，（１）生育期间甜菜叶片、叶柄和根中的蔗糖含量皆呈逐渐增加的趋势。特别是１ 对真叶时，胚轴中就已有蔗糖存在，并在８ 片叶脱皮时蔗糖含量即高达１０％ 左右。其中叶片和叶柄中为饲用甜菜高于糖用甜菜，根中则正好相反。（２）叶片中蔗糖积累强度呈先上升后下降再上升又下降趋势，但糖用甜菜上升幅度小；叶柄中表现为先上升后下降规律，且糖用甜菜高峰低并出现时间晚；根中表现为先下降后上升的趋势，并在２５ 片叶之后，糖用甜菜继续上升，饲用甜菜则大幅度下降。（３） 叶片和叶柄中的蔗糖分配表现为逐渐降低或略有波动，且为饲用甜菜高于糖用甜菜；根中则表现出逐渐上升后平稳过渡，２５ 片叶后糖用甜菜继续上升，而饲用甜菜平稳维持的趋势，且糖用甜菜高于饲用甜菜。说明糖用甜菜品种叶片蔗糖合成和运转能力强，运输途径和梯度合理，中后期分配集中，再加上根部具有较强的积累强度和优势的蔗糖贮藏能力，最终表现为根中大量蔗糖的积累。
A comparative physiological study was conducted on the changes of sucrose and its distribution in various organs during the growth of sugar beet and fodder beet. The results showed that: (1) Sucrose content in beet leaf, petiole and root increased gradually during growth. Especially in a pair of true leaves, sucrose has been present in the hypocotyls and sucrose content is as high as about 10% when the 8 leaves are peeled off. Among them, the forage beet in leaves and petiole is higher than that in sugar beet, and the opposite is true in the root. (2) The accumulation of sucrose in leaves increased first and then decreased then increased again and then decreased. However, the increase in sugar beet was small. Petiole showed the first increase and then decrease pattern, and the sugar beet peak had a low peak and appeared late. The performance of the first decline and then upward trend, and after 25 leaves, sugar beet continued to rise, feed beet dropped significantly. (3) The distribution of sucrose in leaves and petioles showed a gradual decrease or slight fluctuation, which was higher for fodder beet than sugar beet. In roots, it showed a gradual rise and a smooth transition. After 25 leaves sugarbeet continued to rise , While the trend of feeding beet stable maintenance, and sugar beet than feeding beet. This indicated that sugar beet varieties had strong ability of synthesis and operation of sucrose, reasonable transportation route and gradient, concentrated distribution in the middle and late stages, and storage capacity of sucrose with strong accumulation strength and superiority at the root, which eventually showed the accumulation of sucrose .