Four plum cultivars, i.e. Dashi early ripening, Longyuanqiuli, Fraiar, Angeleno, were used to investigate the changes of the dynamitic pattern and contents of main sugar, acid , vitamin C and Ca, Mg, K during fruit development.

• 本试验分析测定了大石早生、龙园秋李、黑宝石、安哥诺4个李品种果实发育动态及其主要糖、酸、Vc和Ca、Mg、K含量的变化规律。