Abstract: The relationship between polyamine metabolism and growth and devel-opment of horticuItural crops has been reviewed in this article in the following aspects:pathways of polyamine biosynthesis,its regulation on plant growth and development,and its applications on horticultural crops.

Key words: Putrescine, Spermidine, Spermine, Growth and devdlopment, Horticul-tural crops

摘要： 本文综述了国内外近年来对多胺类物质与园艺作物生长发育关系的研究报道。就多胺类的合成途径、对植物生长发育的调控作用以及在园艺作物上的应用进行了概述。

关键词: 丁二胺, 亚精胺, 精胺, 生长发育, 园艺作物