适时采收的果实,绝大部分都能反映出本品种所具有的色泽和风味,但由于市场或运输上的需要,往往需要提前采收,或因气候影响,如成熟期阴雨天气较多,及内膛的果实着色较差,影响了果实的外观品质,造成经济效益降低。现介绍几种人工增色的方法。一、树上增色法。在正常采收前10—30天,喷施750—1000倍的乙烯利溶液。在乙烯利溶液中加入40—60ppm的萘乙酸(或其钠盐),可防止严重落果。喷后1—2周即可采收,喷药处理的果实全红和半红果显著增加。据试验,祝光可达85％以上,且含糖量增加1—2％。喷施乙烯利时应注意:①处理树必须健壮,同时果面充分着药。②在果实着色期或着色期与果实膨大期两次喷布500—600ppm的稀土溶液,对苹果、葡萄等有显著作用,80—90％的果 Timely harvest of fruits, most of them can reflect the color and flavor of this species, but due to market or transport needs, often need to be harvested in advance, or due to climate effects, such as more rainy weather at maturity, And the bore of the fruit coloration is poor, affecting the appearance of fruit quality, resulting in lower economic efficiency. Now introduce several methods of artificial color. First, the tree augmentation method. 10-30 days before the normal harvest, spraying 750-1000 times ethephon solution. Addition of 40-60 ppm naphthaleneacetic acid (or its sodium salt) to the ethephon solution prevents severe fruit drop. 1-2 weeks after spraying can be harvested, spray treatment of fruits full red and half red fruit significantly increased. According to the test, I wish more than 85%, and sugar content increased by 1-2%. Ethephon spraying should pay attention to: ① treatment tree must be robust, while the fruit full of medicine. ② In the fruit coloring or coloring and fruit enlargement two times sprinkling 500-600ppm rare earth solution, apples, grapes and other significant role, 80-90% of the fruit