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多效唑是一种延缓植物生长和广谱杀菌的新型植物生长调节剂,应用于二晚育秧,具有矮壮秧苗、促进分蘖、增加叶绿素(叶片变宽变厚),栽插后返青快、不败苗等作用。今年在我省部分地区示范推广,被誉为有神奇的功效。目前使用多效唑的方法,均为用300ppm浓度,每亩用药液100公斤,在秧苗1叶1心期进行喷雾。笔者等为寻求一种简单、经济有效的使用方法,试用多效唑浸种、浸芽,品种为晚籼R4015,供试多效唑是江苏省建湖农药厂生产的15％粉剂。1987年7月、26日分别用浓度100、300、600、900ppm药液,浸种、浸芽各为24小时,浸后用清水洗净,放置培养皿内,任其自然生
Paclobutrazol is a new plant growth regulator that slows plant growth and broad-spectrum bactericidal activity. It is applied to two-night seedlings with short stout seedlings, tillers, chlorophyll (leaves widened and thickened) Miao and other effects. This year in some areas in our province demonstration and promotion, known as a magical effect. The current method of using paclobutrazol, both with 300ppm concentration, 100 kilograms per mu drug solution, 1 leaf in the seedling 1 heart period spray. In order to seek a simple, economical and efficient method of use, the author tried the test of paclobutrazol seed soaking and soaking buds for the indica rice variety R4015. The experimental paclobutrazol was 15% of the powder produced by Jianhu Pesticide Factory in Jiangsu Province. July 1987, 26, respectively, with a concentration of 100,300,600,900ppm liquid, soaking, soaking each bud for 24 hours, after immersion rinse with water, place Petri dishes, let its natural health