| 开张角度对苹果植株体内源激素含量及平衡的影响 |
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| 引用本文： | 王磊,姜远茂,彭福田,魏绍冲,葛顺峰,房祥吉.开张角度对苹果植株体内源激素含量及平衡的影响[J].中国农业科学,2010,43(22):4761-4764. |
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| 作者姓名： | 王磊 姜远茂 彭福田 魏绍冲 葛顺峰 房祥吉 |
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| 作者单位： | (山东农业大学园艺科学与工程学院/作物生物学国家重点实验室); |
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| 基金项目： | 现代苹果产业技术体系(MATS)，公益性行业(农业)科研专项，山东省农业重大应用创新课题资助项目 |
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| 摘 要： | 【目的】为开张角度技术在苹果生产上的推广提供理论依据。【方法】以3年生盆栽富士苹果(Malus domestica Borkh.cv.Red Fuji)/平邑甜茶(Malus hupehensis)为试材,研究开张角度对富士苹果植株体内源激素含量及平衡的影响。【结果】苹果植株茎尖的内源ABA含量随开张角度的增大显著上升,在新梢生长初期,枝条水平和枝条下垂与对照相比,分别升高了17.5%和29.2%;GAs、IAA、ZRs含量均有不同程度的下降,其中GAs、IAA含量下降显著,ZRs含量差异不显著。开张角度后,细根的内源ABA含量显著上升,GAs、IAA含量均有降低,ZRs含量差异不显著;茎尖与细根的(IAA+GAs+ZRs)/ABA比值随开张角度增大显著降低,在秋梢生长期,对照、枝条水平和枝条下垂3个处理茎尖的(IAA+GAs+ZRs)/ABA比值分别为2.11、1.61和1.36。【结论】开张角度使促进生长型激素GAs、IAA的含量显著减少,(IAA+GAs+ZRs)/ABA比值降低。
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| 关 键 词： | 苹果 开张角度 内源激素 |
| 收稿时间： | 2010-06-10; |
Effects of Branch Bending on Growth of New Shoots and the Dynamic Changes of Endogenous Hormones in Apple |
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| WANG Lei,JIANG Yuan-mao,PENG Fu-tian,WEI Shao-chong,GE Shun-feng,FANG Xiang-ji.Effects of Branch Bending on Growth of New Shoots and the Dynamic Changes of Endogenous Hormones in Apple[J].Scientia Agricultura Sinica,2010,43(22):4761-4764. |
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| Authors: | WANG Lei JIANG Yuan-mao PENG Fu-tian WEI Shao-chong GE Shun-feng FANG Xiang-ji |
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| Institution: | (College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology)
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| Abstract: | 【Objective】 The aim of the experiment is to provide a theoretical basis for the extension of the branch bending technology in apple production. 【Method】Three-year-old apple trees (Malus domestica Borkh. cv Red Fuji)/Malus hupehensis grown in a pot were used in the present study to explore the effects of branch bending on growth of new shoots and the dynamic changes of endogenous hormones. 【Result】 The results were as follows: The level of endogenous ABA in shoot tip was positively conrrelated with branch bending, that of branch horizontal and branch drooping were 17.5% and 29.2% more than that of contorl at the first priord, but the level of GAs and IAA decreased significantly,and that of ZRs decreased unconspicuously. The level of endogenous ABA in fine roots of branch bending was significantly higher than that of contorl, whereas the level of GAs and IAA decreased in different extents, the change of the level of ZRs showed no significant difference. The ratio of (IAA+ GAs +ZRs)/ABA in shoot tip and fine roots decreased significantly along with the increase of branch bending angle, the values in shoot tip of contorl, branch horizontal and branch drooping were 2.11,1.61, and 1.36 respectively, at autumn shoot growing stage. 【Conclusion】 The level of endogenous IAA and GAs as well as the ratio of (IAA+ GAs +ZRs)/ABA decreased significantly after branch drooping. |
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| Keywords: | Malus domestica branch bending endogenous hormones |
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