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一般认为,荔枝树在冬季需要一段营养休眠期,才有利于春季开花.在正常情况下缺水和寒冷会导致休眠,但是采取一些技术措施,如控制灌溉和施肥,使用生长调节剂,根修剪和环剥,也可人为地诱导休眠、Nakata(1953)首先论证荔枝树对环剥的效应。在夏威夷,他采用这种处理方法促使‘陈紫’品种开花,且产量提高十五倍。而对照植株仍处于营养生长期,且开花少,9月份(花芽形成前三个月)进行环剁,其产量最高。然而,正如 Menzel(1983)所
It is generally believed that lychee trees require a vegetative dormant period in winter, which is conducive to flowering in spring. Under normal circumstances, lack of water and cold lead to dormancy, but some technical measures such as controlling irrigation and fertilization, using growth regulators and root pruning And girdling, but also artificially induced dormancy, Nakata (1953) first demonstrated lychee tree girdling effect. In Hawaii, he used this treatment to induce the flowering of ’Chen purple’ varieties and increase yields by 15 times. The control plants are still in vegetative stage, and less flowering, in September (three months before flower bud formation) ring chop, the highest yield. However, as Menzel (1983)