巨峰葡萄用色调波长５６０～５８０ｎｍ、透光率４０％、３８ｇ原纸涂布蜡质药膜的果实袋进行套袋，对促进果实着色及提高含糖量均有显著效果。采前解袋可加速着色进程，对含糖量无显著影响。当采前１０ｄ左右袋内果穗已接近最佳商品色调时，应带袋采收，以减少果品污染 Kyoho grapes with color wavelength of 560 ~ 580nm, light transmittance of 40%, 38g coated paper coated wax fruit film bag bagging, to promote fruit coloring and improve sugar content have a significant effect. Processed bags before lifting can accelerate the coloring process, no significant impact on sugar content. When the first 10d before the bag is close to the best color bags of fruit, should be bagged to reduce fruit pollution