不同袋型果袋套袋对“翠冠”梨果实品质的影响

目的]研究3种袋型果袋套袋对＂翠冠＂梨（Pyrus pyrifolia‘Cuiguan’）果实品质的影响。方法]3种袋型分别为＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种袋型。结果]与对照（不套袋）相比,＂外黄内白＂袋处理果实基本能保持原有果面绿色和风味,而＂外花内黑＂袋和＂外黄内黑＂袋处理果实果面呈现黄白色,果实风味变淡;＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种果袋处理都极显著减少果面锈斑的产生,其锈斑指数分别为25.5、55.5、82.8,其中＂外黄内白＂袋效果最为明显;＂外黄内白＂袋处理果实硬度极显著下降,而＂外花内黑＂和＂外黄内黑＂袋处理果实硬度则极显著升高,其中,＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种果袋处理果实硬度分别为6.30、7.34、7.05 kg/cm2,对照为6.65 kg/cm2。＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种果袋处理果实可溶性固形物和可溶性糖含量都极显著下降,可溶性固形物分别为10.85%、12.93%、12.43%和13.90%,可溶性糖含量分别为4.43%、4.30%、5.19%和6.33%。＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种果袋处理和对照间可滴定酸含量无明显差异,其可滴定酸含量分别为0.57%、0.48%、0.41%和0.56%。与对照相比,＂外黄内白＂、＂外花内黑＂和＂外黄内黑＂3种果袋处理果实VC含量显著下降,分别为54.61、55.10、55.10 mg/kg。结论]综合来看,＂外黄内白袋＂是生产绿色无锈＂翠冠＂梨的理想果袋。

Effects on Qualities of Cuiguan Pear(Pyrus pyrifolia 'Cuiguan') Bagging by Different Fruit Bags

Objective] The aim was to study three types of fruit bags bagging on qualities of Cuiguan pear.Method] Three types of fruit bags were Yellow outer and white inner,Yellow outer and black inner and Yellow outer and black inner.Result] Comparing with control,fruits bagging with Yellow outer and white inner bags could keep intrinsic green color peels and flavor,nevertheless,bagging with the other two types of bags had yellow and white color peels,the flavor became lighter;The rust spots were reduced obviousl...