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多效唑是英国ICI有限公司在70年代末推出的一个高效低毒的植物生长延缓剂和广谱性杀菌剂,具有增加作物叶片气孔阻抗,降低叶片蒸腾强度,增强吲哚乙酸氧化酶活性,抑制顶端生长,促进侧芽发生等多种生物效应。马铃薯喷施多效唑后,能抑制植株伸长,叶色变深,能显著提高块茎的产量
Paclobutrazol is a highly effective and low toxicity plant growth retarding agent and broad spectrum bactericide introduced by British ICI Co., Ltd. in the late 1970s. It has the functions of increasing stomatal impedance, reducing leaf transpiration, enhancing indoleacetic oxidase activity, Growth, promoting lateral buds and other biological effects. After sprayed with paclobutrazol, the plant can inhibit plant elongation and darken leaf color, which can significantly increase tuber yield