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多效唑204(PP_(333)是三唑类植物生长调节剂。其作用机制是,在形态上延缓作物的纵向伸长,增加茎粗,促使横向生长,促进分枝分蘖,使植株紧凑矮化;在生理上增加叶绿素、核酸、蛋白质的含量,增加乙烯利的释放量,降低植物体内赤霉素的含量。 1990年我们应用15％多效唑在两个乡进行试验,品种为“铁丰24”和“7915—2—1”两个无限结荚型的大豆。使用的方法是,应用15％多效唑,稀释成100ppm和200ppm浓度,于大豆始花期后1周进行喷雾。喷后20天和40天调查
PP334 is a triazole plant growth regulator whose action mechanism is to delay the longitudinal elongation of the plant in morphology, increase the stem diameter, promote the horizontal growth, promote the branching and tillering, and make the plant compact dwarf. Physiological increase in chlorophyll, nucleic acid, protein content, increase the release of ethephon and reduce the content of gibberellic acid in plants.In 1990 we applied 15% paclobutrazol in two townships to test the varieties of “iron abundance 24” and “7915-2-1” Two unlimited pods of soybeans were sprayed at 15% paclobutrazol, diluted to 100 ppm and 200 ppm, one week after the beginning of flowering of soybean, 20 days and 40 days after spraying survey