The correlation between the reducing sugar content in phloem and xylem and the ratio of damaged trees was not close. 不同杨树品系韧皮部和木质部的还原糖含量与被害株率没有相关性。
In the course of fermentation from grape juice to wine,the change of reducing sugar concentration is an important index of fermenting progress. 在从葡萄汁到葡萄酒的发酵过程中，还原糖浓度的变化是指示发酵进程的一个重要指标。
