不同套袋材料对红杧6号杧果果实品质的影响

Effects of bagging on fruit quality in Zill mango

研究了不同套袋材料对红杧6号杧果果实外观、果皮色素、果皮色泽及果实内在品质的影响。结果表明,采用白色单层袋套果后,青熟和完熟时,白色单层纸袋处理的叶绿素、类胡萝卜素质量分数较低,花青苷和类黄酮质量分数均较高,果皮亮度、色彩浓度和色度角均较高或最高,使果皮在青熟时呈紫红色,完熟时呈桃红色。白色单层袋套果后,果实的内在品质如维生素C、可溶性固形物、蔗糖、葡萄糖、果糖质量分数最高,内在品质最佳。外黄内黑复合纸袋果皮叶绿素、类胡萝卜素、花青苷、类黄酮质量分数均较低,果皮亮度、色彩浓度均最高,色度角最低,使果皮在青熟时呈浅黄色,完熟时呈橙黄色,但果实内在品质比白色单层袋差。因此,建议红杧6号杧果用白色单层纸袋进行套袋。

Mango cv. Zill was used as material for studying the effects of different bagging material on fruit appearance, skin pigments, skin color and luster and fruit internal quality. Results showed that the fruit skin bagged with single white bags displayed significantly lower contents of chlorophylls and carotenoids ,while had significantly higher levels of anthocyanins and flavonoids than those of other treatments, and also showed higher skin lightness, chroma and hue angle than those of other treatments. All these changes after single white bagging resulted in the purple-red skin at green maturity stage and pink at full maturity stage. Single white layer hagging tended to produce fruit with best internal quality, which had highest contents of vitamin C, titratable acidity, soluble solids, sucrose, glucose and fructose. When fruits bagged with yellow/black double-layer bags, the skin contained significantly lower levels of chlorophylls, carotenoids, anthocyanins and flavonoids than those of other treatments. Though skin lightness and chroma were remarkable higher, hue angle was significantly lower than those of other treatments. Therefore, yellow/black double layer bagging tended to produce fruit with light yellow skin color at green maturity stage and orange-yellow skin at full maturity stage and also lower internal quality fruits. Single white layer bags should be recommended for high quality Zill mango production.