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1989年3月3日至7日,在北京市顺义县召开了“多效唑在落叶果树上的应用研究和开发”协作网第一次会议,会议由北京农业大学园艺系和顺义县政府联合主持。参加会议的有北京、天津、河北、辽宁、山东和河南等省市30多个科研、教学和生产单位的代表。会议受到北京市主管部门和学校的重视。多效唑(PP333)是一种抑制内源赤霉素生物合成的生长延缓剂。近几年来,国内外在多种果树上,如苹果、梨、桃、山楂、葡萄、樱桃等树种的试验均表明,它可以减少营养生长,促进短枝发育与花芽形成,提高座果率和产量,而对果实却影响较小,在果树矮化密植、提早结果、早期丰产中
From March 3 to March 7, 1989, the first meeting of “Collaborative Research and Development of PP333 on Deciduous Fruit Trees” was held in Shunyi County, Beijing. The meeting was co-chaired by the Department of Horticulture of Beijing Agricultural University and Shunyi County Government. More than 30 representatives of scientific research, teaching and production units from Beijing, Tianjin, Hebei, Liaoning, Shandong and Henan provinces attended the conference. Meeting by the Beijing authorities and schools attention. Paclobutrazol (PP333) is a growth retardant that inhibits the endogenous gibberellin biosynthesis. In recent years, many domestic and foreign fruit trees, such as apples, pears, peaches, hawthorn, grapes, cherries and other tree species have shown that it can reduce vegetative growth, promote short shoot development and flower bud formation, improve fruit rate and Yield, but little effect on the fruit, dwarf in the close planting trees, early results, early high yield