套袋对粤引早脆梨果实品质影响的比较

Comparative study on the effects of bagging on fruit quality of 'Yueyinzaocuili' pear cultivar

为提高广东砂梨栽培效益,选用10种不同类型果袋对早熟砂梨品种粤引早脆梨进行套袋试验。结果表明,套袋后粤引早脆梨果皮颜色、果面光洁度、果点数量和锈斑大小均有不同程度的改善,但套袋果的单果重量和可食部分均有所下降,分别比对照下降12.70%和14.21%。与对照相比,套袋后粤引早脆梨果实的可溶性固形物和可溶性总糖含量分别降低2.49%~14.66%和2.17%~16.72%,而可滴定酸、维生素C含量和果实硬度则分别提高0.35%~21.06%、3.25%~42.52%和1.47%~14.11%。综合比较认为,内袋黄外袋内黑外黄双层果袋（D-2）效果最好。

In order to improve the cultivation performance of sand pear（Pyrus pyrifolia）in Guangdong Province,10 types of bags were chosen to study the effects of bagging on fruit quality of ‘Yueyinzaocuili＇ pear,an early-maturing sand pear cultivar widely planted in Guangdong Province. The result indicated that the peel color,smoothness of fruit surface,quantity of fruit dot and size of fruit russet could be significantly improved by fruit bagging,but the single fruit weight and edible part of bagged fruit decreased by 12.70% and 14.21% on average,respectively. In contrast to control,the total soluble solids content and total soluble sugars content were evidently affected by fruit bagging,deceased by 2.49%-14.66% and 2.17%-16.72%,respectively. However,the titratable acid content,vitamin C content and the fruit hardness raised after bagging,which increased by 0.35%-21.06%,3.25%-42.52%,and 1.47%-14.11%,respectively. According to comparison,the double layer bag with yellow inner and black-inner yellow-outer outer（D-2）was the best choice. The study provided an important basis for the application of fruit bagging technology on the cultivation of ‘Yueyinzaocuili＇ pear in Guangdong Province.