一、采收 当有80％的梨果皮颜色黄略带绿或绿中带黄时,即可采收。 二、贮存期的生理病害 1.鸭梨黑心病。由0℃低温引起的黑心病多发生在入贮30～50天,果心发生褐变,但果肉、果皮颜色不变;由衰老引起的黑心病多在次年2～3月份发生,果心变褐,并有酒精味。 First, the harvest When there are 80% of the peel color yellow green or green with yellow, you can harvest. Second, the physiological symptoms of storage 1. Pear black heart disease. Caused by low temperature 0 ℃ black heart disease occurred in the stored 30 to 50 days, the fruit of browning, but the flesh, peel color unchanged; black heart disease caused by senescence occurred in the second year from March to March, fruit heart Brown, and alcoholic.