荔枝开花多结果少,大量落花消耗树体大量营养物质,影响座果率。为了减少营养物质的消耗,提高座果率,我们曾用摘除长花序、断根、环状剥皮等措施,均未得到满意的效果。根据国外文献报道,乙烯利有疏花保果作用,因此1980年我们采用乙烯利对荔枝树进行疏蕾试验,取得了良好效果。 Litchi flowering less fruit, a large number of falling flowers consume a large number of tree nutrients, affecting the rate of fruit set. In order to reduce the consumption of nutrients and increase the rate of fruit set, we have used the measures of removing long flowers, removing roots, and ring stripping, and so on. We did not get satisfactory results. According to foreign literature, ethephon has the role of flower-preserving and fruit-preserving. Therefore, in 1980, we used ethephon to conduct the bud-breaking test on lychee trees and achieved good results.