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多效唑对核桃生长发育的影响及其生理基础*
引用本文:朱丽华,曹庆昌,李明亮. 多效唑对核桃生长发育的影响及其生理基础*[J]. 林业科学研究, 1993, 6(5): 531-535
作者姓名:朱丽华  曹庆昌  李明亮
作者单位:中国林业科学研究院林业研究所,北京市农科院林业果树研究所,北京市农科院林业果树研究所 北京 100091 副研究员
基金项目:中国林业科学研究院科学基金
摘    要:对8年生晚实嫁接核桃树,于春季新梢长15cm左右时进行多效唑叶面喷施处理,试验结果表明,1000-2000ppm浓度的多效唑可显著抑制核桃树营养生长,以200ppm处理树于8月27日调查结果为例,新梢长度,节间长度、新梢粗度、干径和叶面积分别分别比对照低61.5、21.4、29.1、28.2和59.9%。单株坚果数和产量分别比对照增加57.9和64.9%。多效唑对核桃的生理效应包括;降低GA3、I

关 键 词:核桃 多效唑 生长
收稿时间:1992-12-29

The Effect of Paclobutrazol on the Growth and Development of Walnut and Its Physiological Mechanism
Zhu Lihu,Cao Qingchang and Li Mingliang. The Effect of Paclobutrazol on the Growth and Development of Walnut and Its Physiological Mechanism[J]. Forest Research, 1993, 6(5): 531-535
Authors:Zhu Lihu  Cao Qingchang  Li Mingliang
Affiliation:The Research Institute of Forestry, CAF Beijing 100091;Institute of Forestry and Fruit Trees, Beijing Academy of Agriculture;Institute of Forestry and Fruit Trees, Beijing Academy of Agriculture
Abstract:In this paper, the effect of paclobutrazol on the growth and development of walnut and its physiological mechanism were studied. The results showed that paclobutrazol (1 000~2 000 ppm) could significantly depress the growth of shoot (decreased the length and thickness of shoots), reduce the trunk diameter and single leaf area, increase the number of nuts and greatly raised the yield per plant. The physiological effects of paclobutrazol on walnut were as follows; increase the concentrations of chlorophyll, soluble sugar and protein in leaves, reduce the contents of GA3, IAA and ABA in shoot tips or buds, and had no influence on the quality of nuts. The paper also discussed the possible mechanism of paclobutrazol affecting walnuts.
Keywords:walnut   paclobutrazol   hormones   nutrient substances
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