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(1)龙眼的科学采收方法①采收条件:龙眼果实以充分成熟采收为宜。龙眼果实成熟时有如下变化:果实由坚实变为软而富有弹性感;果面由粗糙转为薄而光滑;果核由白色变为黑褐色(有些品种为红褐色);果肉生青味消失,代之由淡变甜。②采收时间和方法:采收应在晴天的早晨或傍晚进行,中午、下午气温高,果实易变色,雨天不宜采收。因为果实易感染病害,不能久放贮运。采时用采果剪在果穗基部下1—2张复叶处剪断,不要伤及树体。一般用竹梯、采果篓,轻采轻放,叠放整齐,以利捆扎。采摘下来的果实不能在烈日下晒,宜放在树荫下或送库房整理、包装。在包装前,应修齐果穗,坏果与破裂果应剔除,将果德上的叶子保存下来,果实在树上时己经受到严重的机械损伤,剥开果皮可以看到果肉有褐色斑点。龙眼果实采收后装入塑料
(1) Longan scientific methods of harvest ① Harvest conditions: longan fruit to fully mature harvest appropriate. The fruit of longan changes as follows: the fruit changes from solid to soft and elastic; the fruit surface turns from rough to thin and smooth; the nucleus changes from white to dark brown (some varieties are reddish brown) , Replaced by light sweet. ② harvesting time and methods: harvesting should be carried out in the sunny morning or evening, noon, afternoon high temperature, the fruit is easy to change color, rainy days should not be harvested. Because the fruit is susceptible to disease, can not put long storage. Mining with cut fruit scissors in the ear base under the 1-2 compound leaves cut off, do not hurt the tree. General use of bamboo ladder, fruit basket, light mining, neatly stacked to facilitate binding. The fruit can not be picked in the hot sun, should be placed in the shade or delivery warehouse finishing, packaging. Before packing, the ears should be repaired, the bad fruit and the cracked fruit should be removed, the leaves on the fruit tree should be preserved, and the fruit has been severely damaged by mechanical injury in the tree. Peel the peel to see the brown spots on the pulp. Longan fruits are harvested and filled into plastic