多效唑是一种新型的植物生长调节剂。在油菜栽培过程中的主要效应有:在苗期喷洒适量药液后,能对幼苗控长,使幼苗矮化,假茎增粗,增加、早生分枝,叶片增厚宽,叶绿素增多,有效分枝着生部位降低,减少栽后败苗的作用,且在越冬时抗寒能力强,在苔期喷洒,又可以防倒伏,增角,增粒。经过 Paclobutrazol is a new plant growth regulator. In rapeseed cultivation process, the main effects are: spraying the right amount of liquid at seedling stage, the seedling can be controlled long, dwarf seedlings, pseudostem thickening, increased, early branches, thicker leaves, chlorophyll increased, effective Branches reduce the biological parts, reducing the role of transplanted seedlings, and cold in winter ability, spraying in the moss period, but also anti-lodging, by the angle, by grain. after