在和龙、龙井地区 ,对苹果梨进行分期采收 ,测定了其各项指标的变化 .结果表明 :苹果梨果实的最适采收期为种子的变黑指数在 95左右 (一般在 9月 30日左右 ) ,在气候等因素与上述两地相似的延边其它地区 ,可以作为参考 In Helong and Longjing areas, the apple pears were harvested in stages, and the changes of their indexes were measured.The results showed that the optimum harvesting period of apple pears was that the blackening index of the seeds was around 95 (usually in September 30 days or so). In other parts of Yanbian where climate and other factors are similar to the above two, it can be used as a reference