由于晚三吉梨果皮粗糙,且厚而黑,严重影响其商品价值,因而,我们试图用套袋的方法来改良果实的某些品质。 于1987年春始至11月底止,试验了套报纸袋,套腊纸袋(日本引进),不套袋三种处理。结果:套袋对改良晚三吉梨的色泽有明显作用。报纸袋不仅使色泽变浅(澄黄),且果皮变薄;腊纸袋 Due to the rough, dark and dark peel of late-sika pears, which seriously affects the value of their products, we tried to use bagging methods to improve some of the fruit’s qualities. From the beginning of spring 1987 to the end of November, we tested three kinds of processing: newspaper bag, wrap paper bag (imported from Japan) and no bagging. Results: Bagging has a significant effect on improving the color of evening sage pear. Newspaper bags not only lighter color (Cheng Huang), and peel thinning; wax paper bag