多效唑是一种高效内吸传导型植物生长抑制剂。它的主要功能是：有效减缓作物的营养生长速度，促进生殖生长进程，从而可防止作物旺长、郁闭倒伏。提高作物产量和品质，实现作物的早期丰产。 近年来，多效唑的应用得到了较快普及，特别在果树和小麦等作物上应用更为广泛。但是， Paclobutrazol is a highly efficient systemic inhibitor of plant growth. Its main functions are: to effectively reduce the vegetative growth rate of crops and promote the process of reproductive growth, thus preventing the growth of crops and lodging. Improve crop yield and quality, and achieve early crop yield. In recent years, the application of paclobutrazol has been faster and more widespread, especially in crops such as fruit trees and wheat. but,