植物生长调节剂在果树生产中的应用日益扩大 ,特别是在矮化、促花、催熟、保鲜、提高果实品质及克服大小年等方面 ,有时比常规农业技术措施更为简便有效 ,为科学栽培果树开辟了一条新途径。果树上常用的植物生长调节剂主要有以下几类 :(1 )生长素类 :目前主要用来促进扦插生根 Plant growth regulators in the application of fruit trees growing, especially in the dwarf, flower, ripening, preservation, to improve fruit quality and overcome the size of the year and other aspects than the conventional agricultural techniques and more simple and effective, as the science Cultivation of fruit trees opened up a new way. The commonly used plant growth regulators on fruit trees are mainly the following categories: (1) Auxins: At present, mainly used to promote cutting rooting