| 摘顶对黄瓜^14C及^15N同化物运转与分配的影响 |
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| 引用本文： | 于贤昌,蒋先明.摘顶对黄瓜^14C及^15N同化物运转与分配的影响[J].园艺学报,1996,23(1):54-56. |
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| 作者姓名： | 于贤昌 蒋先明 |
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| 作者单位： | 山东农业大学园艺系，山东农业大学园艺系 泰安 271018，泰安 271018 |
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| 摘 要： | 研究了长春密刺黄瓜于第15叶摘顶后,14C及15N同化物向各器官的运转与分配状况。结果表明,摘顶增加了14C和15N同化物向果实和侧枝的分配率,减少了向茎叶的分配率。摘顶15日内向根系的分配率与对照相比并无太大差异,但30日后却远低于对照,此时摘顶株其它备器官14C的放射性比强也明显低于对照。这是因摘顶15日后,功能叶片衰老,根系活力下降的缘故。
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| 关 键 词： | 黄瓜 摘顶 (14)~C (15)~N 分配 |
Effect of Topping on Translocation and Distribution of ~(14)C and ~(15)N-amillate in Cucumber |
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| Yu Xianchang and Jiang Xianming.Effect of Topping on Translocation and Distribution of ~(14)C and ~(15)N-amillate in Cucumber[J].Acta Horticulturae Sinica,1996,23(1):54-56. |
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| Authors: | Yu Xianchang and Jiang Xianming |
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| Abstract: | This experiment was carried out in green house at Shandong Agricultural Univercity in the spring of 1992. The effect of topping on translocation and distribution of 14C and 15N-amillate in cucumber was studied. The results were as follows: Distribution rates of 14C and 15N-amillate in cucumber fruit and laterals increased but was reduced in stems and leaves as a result of topping. Distribution rate of 14C and 15N-amillate in roots was not decreased 15 days after topping, but was greatly reduced 30 days after topping. |
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| Keywords: | Cucumber Topping ~(14)C ~(15)N Distribution |
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