欧李叶片、枝条休眠期碳水化合物含量的研究

Research on Carbohydrate Content of Dormant Chinese Dwarf Cherry Leaves and Branches

为了研究欧李碳水化合物含量的变化与休眠的关系,选用了欧李的两个品种20-03和中实-3为研究对象,分别对其叶片和枝条进行了碳水化合物的测定和比较分析。结果表明:20-03枝条中可溶性糖含量在休眠前呈现上升趋势,而中实-3的可溶性糖在休眠前大幅度地下降,两个品种在快进入休眠到整个休眠期可溶性糖一直呈现上升趋势,休眠解除后都呈现缓慢下降趋势,而淀粉含量在休眠前都呈现上升趋势,休眠期呈现下降趋势,休眠解除后又开始缓慢上升。

The carbohydrates of the leaves and branches of Chinese dwarf cherries 20-03 and Zhongshi NO.3were determined and analysed in order to research the relationship between the contents of carbohydrates and dormancy.The result showed that the soluble sugar content of 20-03 was on the increase before and during dormancy,while was on the decrease after dormancy.The soluble sugar content of Zhongshi NO.3was on the increase after dormancy,while was on the decrease before and during dormancy.The starch contents of 20-03 and Zhongshi NO.3were on the increase before and after dormancy,while were on the decrease during dormancy.