多效唑和矮壮素均是内源赤霉素合成抑制剂,具有延缓植物生长、抑制茎秆伸长、缩短节间、促进植物分蘖、增加植物抗逆性等效果。生产上常用来降低稻麦株高,以此达到防倒伏的目的。但实践中发现,这两种药使用不当常造成不良影响。由于多效唑可作为壮秧剂应用,使秧苗外观表现矮壮多蘖、叶色 PP333 and CCC are inhibitors of endogenous gibberellin synthesis, which can delay plant growth, inhibit stem elongation, shorten internodes, promote plant tillering, and increase plant stress resistance. Production is often used to reduce rice and plant height, in order to achieve the purpose of lodging. However, it has been found in practice that the improper use of these two drugs often causes adverse effects. As paclobutrazol can be used as a strong seedling agent, so that the appearance of seedlings stunted more tiller, leaf color