套报纸袋或蜡纸袋都可以提高晚三吉梨果实硬度和果形指数,套蜡纸袋对果形指数影响显著。套报纸袋对果皮色泽改良效果明显,可使果面光滑、果皮变薄;套蜡纸袋果皮依然黑厚,粗糙程度加重,套袋果实的可溶性固形物含量略低。 The newspaper bag or the sachet bag can improve the fruit firmness and fruit shape index of late sijia pear, and the sachet paper bag has a significant effect on the fruit shape index. The newspaper bag has obvious effect on improving the color of the peel, which can make the fruit surface smooth and the peel thin. The peel of the sachet paper bag is still dark and thick with the roughness increasing. The soluble solid content of the bagged fruit is slightly lower.