多效唑是一种最新的高效植物生长调节剂,它对许多植物种类很有效,其主要作用方式是限制赤霉素的生物合成,由此限制了营养生长,使同化产物转向生殖生长,提供了增产潜力,并能杀死病菌防病。国外在许多果树上作了研究都取得极好的效果。现将1986—1987两年在葡萄上的试验结果总结如下: Paclobutrazol is a new and efficient plant growth regulator that is effective in many plant species and its primary mode of action is to limit gibberellin biosynthesis, thereby limiting vegetative growth, shifting assimilation products to reproductive growth, and providing yield enhancement Potential and can kill bacteria and prevent disease. Foreign studies on many fruit trees have achieved excellent results. Now 1986-1987 two years on the grape test results are summarized as follows: