鸭染黑皮病是贮藏过程中的一种生理病害。一般在二、三月份发病率较高,严重时病斑连接成片,使整个果皮呈黑褐色,不但影响果实的外观和销售质量、降低商品价值,而且缩短了果实贮藏期,经济上造成很大损失。因此,防止鸭梨“黑皮病”是目前生产中急待解决的课题。 Duck dyed melatonin is a physiological disease during storage. Generally in February and March, the incidence rate is high. In severe cases, the lesion is connected into a piece, causing the entire peel to be dark brown, which not only affects the appearance and sales quality of the fruit, reduces the commodity value, but also shortens the storage period of the fruit and economically causes Big loss Therefore, to prevent Ya Pei “black skin disease” is the urgent issue of production.