1985～1988年,对桃树进行了多效唑的应用试验。结果表明,不论是采取叶面喷布,还是土壤施入,都明显地抑制了桃树新梢的生长,因品种和使用浓度的不同,可减少新梢生长量20%～90%,其抑制作用可持续2～3年;与此同时,促进了当年花芽的形成,而对果实大小和产量则无显著影响。此外,对某些品种可促使其果实提前成熟或提高其早期采收量。本文还对多效唑的使用方法、时期和剂量进行了讨论。 From 1985 to 1988, the application of paclobutrazol was conducted on peach trees. The results showed that either foliar spraying or soil application inhibited the growth of shoots of peach trees obviously. The growth of shoots was reduced by 20% ~ 90% The role of sustainable 2 to 3 years; at the same time, to promote the formation of flower buds that year, while the fruit size and yield no significant impact. In addition, for some varieties, their fruit may be prematurely ripened or their early harvest harvested. This article also discusses the use of paclobutrazol, duration and dose.