| 氮素和钾素胁迫对去顶烤烟生理指标及烟碱的影响 |
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| 引用本文： | 高迟銮,周冀衡,邱尧,李强,张卓,黄婷.氮素和钾素胁迫对去顶烤烟生理指标及烟碱的影响[J].作物研究,2013(5):449-452. |
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| 作者姓名： | 高迟銮 周冀衡 邱尧 李强 张卓 黄婷 |
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| 作者单位： | [1]湖南农业大学烟草研究院,长沙410128 [2]湖南农业大学农学院,长沙410128 |
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| 摘 要： | 以烤烟K326为材料，采用盆栽砂培试验研究了打顶后缺氮、缺钾对烤烟叶绿素含量、硝酸还原酶活性、根系活力等生理指标及烟碱含量的影响。结果表明：打顶后氮、钾胁迫对烤烟生理指标及烟碱含量都有较大的影响，在叶绿素含量、硝酸还原酶活性、根系活力等方面大致表现为全素〉缺钾〉缺氮处理，而烟碱含量表现为缺钾〉全素〉缺氮处理，并且各处理之间存在显著差异。总体而言，氮、钾胁迫不利于烤烟的生长发育。
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| 关 键 词： | 烤烟 施肥 烟碱 叶绿素 硝酸还原酶 根系活力 |
Effect of Nitrogen and Potassium Stress on Physiological Properties and Nicotine of Flue -cured Tobacco after Topping |
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| GAO Chi-luan,ZHOU Ji-heng,QIU Yao,LI Qiang,ZHANG Zhuo,HUANG Ting.Effect of Nitrogen and Potassium Stress on Physiological Properties and Nicotine of Flue -cured Tobacco after Topping[J].Crop Research,2013(5):449-452. |
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| Authors: | GAO Chi-luan ZHOU Ji-heng QIU Yao LI Qiang ZHANG Zhuo HUANG Ting |
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| Institution: | 1 Academy of Tobacco, Hunan Agricuhural University, Changsha, 410128, China; 2 College of Agronomy, Hunan Agricultural University, Changsha, 410128, China) |
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| Abstract: | Pot experiment with sand was carried out with K326 as material to study the effect of nitrogen deficiency and po- tassium deficiency after topping on the chlorophyll content, nitrate reductase activity, root activity and nicotine content of flue - cured tobacco. The results showed that lacking of nitrogen amt potassium had significant influence on physiological properties and nicotine content. As for chlorophyll content, nitrate reductase and root activity, there existed trend of CK 〉 potassium deficiency treatment 〉 nitrogen deficiency treatment. But for nicotine content there showed trend of potassium deficiency treatment 〉 CK 〉 nitrogen deficiency treatment, and there were significant difference among treatments. Over- all, nitrogen and potassium stress were not advantageous to growth and development of flue - cured tobacco. |
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| Keywords: | Flue- cured tobacco Fertilization Nicotine Chlorophyll Nitrate reductase Root activity |
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