| 环剥及外源激素对柑桔光合产物运转分配的影响 |
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| 引用本文： | 温陟良,张良诚.环剥及外源激素对柑桔光合产物运转分配的影响[J].河北农业大学学报,1997,20(3):67-73. |
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| 作者姓名： | 温陟良 张良诚 |
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| 作者单位： | [1]河北农业大学园艺系 [2]浙江农业大学园艺系 |
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| 摘 要： | 以枳砧温州蜜柑为试材，应用＾１４Ｃ示踪技术，研究了环剥及外源激素对柑桔叶片光合产物运转分配的影响。结果表明；环剥和环切均能防止环剥口上方叶片的光合产物向环剥口下方的运输对１ａ生柑桔主干环剥１ｍｍ宽，环剥伤口大约在２０ｄ接通；主干环切２圈后，环切口愈合接通则需要１０－２０ｄ时间。但刚接通的伤口对光合产物的运输效率交不高，要完全恢复其运输功能，则需要更长的时间。
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| 关 键 词： | 柑桔树 环剥 外源激素 光合产物 运转分配 |
Effects of Girdling and Exogenous Plant Hormones on Translocation and Partitoning of Photosynthates in Citrus |
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| Wen Zhiliang, Zhang Liangchen, Cheng Zhihui, ZhangFang.Effects of Girdling and Exogenous Plant Hormones on Translocation and Partitoning of Photosynthates in Citrus[J].Journal of Agricultural University of Hebei,1997,20(3):67-73. |
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| Authors: | Wen Zhiliang Zhang Liangchen Cheng Zhihui ZhangFang |
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| Abstract: | By applying the 14C tracer technique,the effects of girdling,ring-cutting and ex-ogenous hormones on the translocation and partitioning of photosynthates in citrus werestudied. The plant materials used were 1-year-old field seedlings trees of satsuma mandarine(Citrus unshiu Marc. on Poncirus trdeliata Raf. ). The main results were summarized as fol-lows, both girdling and ring-cutting prevented translocation of photosynthates from leaves lo-cated above the site of operation. For the treatment where a ring of bark 1 mm in width onthe trunk of a 1-year-old seedling was removed, approximately 2O days were required tobridge up the gap in the interrupted bark and reestablish the connection between vasular tis-sues on both sides of the ring. Reunion after ring-cutting necessitated 10~20 days after theoperation. Rate of transport through the reunion tissue was initially low and a longer timehad elapsed before the function of transportion was fully recovered. The effect of plant hor-mones on translocation and distribution of photosynthates was dependent on the kind of hor-mone and the status of plant growth and development. GA and BA,when applied to vigorous-ly growing young leaves,significantly increased the import of photosynthates ito the treatedleaves. On the other hand,application of ABA to leaves tended to reduce import rate, Theabove effect of GA could even spread to some nearby shoot,while the effect of BA was re-stricted to the shoot whose leaves were treated. Applying the three above-mentioned hor-mones to fully matured leaves could to a certain extent alter only the partitioning of labelledphotosynthates to the root system,but failed to induce import of labelled photisynthates intothe treated leaves. |
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| Keywords: | Citrus Girdling Ring-cutting Photosynthates Translocation and Partitioning |
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