酥梨套袋,是改善酥梨外观、品质、生产无公害绿色水果的一项措施。但是,由于袋子质量差、套袋技术不规范等原因,致使酥梨果实发生日灼现象逐年增加,直接影响了酥梨的品质和经济效益。现将酥梨套袋发生日灼的原因及预防措施概述如下: 发生原因1、内在因素。酥梨套袋后,梨果实所处袋内环境与大自然环境不同,套袋初期梨果实表面组织幼嫩,生理活动比较活跃,对不良气候条件抵御能力差,套袋后蒸腾作用和呼吸作用受到不 Pear pear bagging is to improve the appearance of pear, quality, pollution-free production of green fruit a measure. However, due to the poor quality bags, bagging technology is not standardized and other reasons, resulting in pear fruit sunburn phenomenon increases year by year, a direct impact on the pear quality and economic benefits. Pear pear bagging now occur the cause of sunburn and preventive measures are summarized as follows: 1, the internal factors. Pear pear bagging, the pears inside the bag environment and the natural environment is different from the early bagging pear fruit surface tissue tender, active relatively active physiological conditions of bad weather resistance, after transpiration and bagging after respiration No