切花保鲜包括两个阶段 :一是切花的售前保鲜 ,主要是保证切花生产过程及长途运输中的保鲜 ,二是售后保鲜 ,主要是指消费者如何延长切花瓶养时间。１售前保鲜１．１鲜花的切取及分级鲜切花的切取一般宜在清晨露水未干时进行 ,也可傍晚切取 ,因为此时在枝内含液汁多 ,即含水量较 Cut fresh preservation includes two stages: First, cut flowers pre-sale preservation, mainly to ensure cut flowers production process and long-distance transport in the preservation, and second, after-sale preservation, mainly refers to how consumers extend the cut vase feeding time. 1 pre-sale fresh 1.1 cut flowers and grading Fresh cut flowers should generally be cut in the morning when the dew did not dry, but also cut off in the evening, because at this time in the branch containing more juice, the water content than