| 打顶后供钾水平对烟草体内钾素积累分配的影响 |
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| 引用本文： | 邱尧,周冀衡,黄劭理,李强.打顶后供钾水平对烟草体内钾素积累分配的影响[J].中国烟草科学,2015,36(1):68-72. |
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| 作者姓名： | 邱尧 周冀衡 黄劭理 李强 |
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| 作者单位： | 湖南农业大学烟草研究院, 湖南农业大学生物科学技术学院, 长沙 410128 |
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| 基金项目： | 红云红河烟草(集团)有限责任公司项目(HYHH2012YL03);湖南省研究生科研创新项目(CX2014B289) |
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| 摘 要： | 本试验采用砂培和营养液培养的方式,探索了打顶后供钾水平对烟草体内钾素积累分配的影响。结果表明,打顶能够促进烟株的生长,增加生物量。钾素在烟株体内移动活跃,无钾培养烟株的根部有大量钾素向叶片运输;提高供钾水平,烟株的钾浓度和钾含量显著提高。打顶后烟株的钾浓度和钾含量下降,但钾素在叶片的积累量增加,上部叶片的钾含量显著提高。
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| 关 键 词： | 顶芽 烟草 钾 积累 分配 |
| 收稿时间： | 2014-06-19 |
The Influence of Potassium Levels on the Accumulation and Distribution of Potassium in Tobacco after Removal of the Apical Bud |
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| QIU Yao;ZHOU Jiheng;HUANG Shaoli;LI Qiang.The Influence of Potassium Levels on the Accumulation and Distribution of Potassium in Tobacco after Removal of the Apical Bud[J].Chinese Tobacco Science,2015,36(1):68-72. |
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| Authors: | QIU Yao;ZHOU Jiheng;HUANG Shaoli;LI Qiang |
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| Affiliation: | Institute of Tobacco, College of Biological Science and Technology, Hunan Agriculture University, Changsha 410128, China |
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| Abstract: | Through sand or solution culture, we studied the influence of potassium rates on the potassium accumulation in tobacco after removal of the apical bud.The results showed that removal of apical buds promoted the growth of tobacco, increased biomass.Potassium could move actively in tobacco plant.In treatment without potassium added, the potassium transported largely from tobacco root to leaves; Potassium application significantly increased the potassium concentration in tobacco.Removal of the apical bud decreased the potassium concentration and content, but the potassium accumulation in leaves increased, especially the upper leaves increased significantly. |
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| Keywords: | apical bud tobacco potassium accumulation distribution |
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