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水文研究了甜菜生育期中不同品种类型甜菜的光合特性，结果表明在生育前期，高糖型品种的叶绿素含量高，而生育中前期以丰产型高，标准型介于二者之间，RuBP羧化酶活性的动态变化亦显这种趋势；在叶丛形成期和块根增长期，丰产型品种光合速度最高，在糖分积累期则以高糖型品种光合速度高；不同品种不同叶位叶的叶绿素含量与光合速率中呈正相关。
Hydrology The photosynthetic characteristics of different types of sugar beet during the growth period of sugar beet were studied. The results showed that in the early growth period, the sugar content of high sugar type varieties was high, while that of the high sugar content varieties was high in the early growing period, The dynamic changes of enzyme activity also showed this trend. In the period of leaf cluster formation and tuberous growth, the photosynthetic rate of high-yielding cultivars was the highest, while the photosynthetic rate of high-sugar cultivars was high during the period of sugar accumulation. The chlorophyll content Content and photosynthetic rate was positively correlated.