【摘要】 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。更多还原

【Abstract】 The following results showed the photosynthetic cha racte ristics in different varieties during beet growth period. In the preceeding growth stage,chlorophyll in high sugar variety is high, in the medium and late stage,chlorophyll in high yield variety is high,the standard variety is on the between,the dynamic transmutation of RuBP carboxylase activity is the same trend.In the forming leaYies stage and the root increasing stage, high yield variety has a higher photosynthetic speed.There is a significant positive correlation on chlorophy 11 with photosynthetic speed in differewt leavies position.更多还原