| 打顶措施对烤烟中上部烟叶质量及等级结构的影响 |
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| 引用本文： | 周初跃,沈嘉,祖朝龙,廖华,刘碧荣,谢明,权军. 打顶措施对烤烟中上部烟叶质量及等级结构的影响[J]. 安徽农学通报, 2012, 18(2): 42-44,78 |
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| 作者姓名： | 周初跃 沈嘉 祖朝龙 廖华 刘碧荣 谢明 权军 |
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| 作者单位： | 安徽中烟工业公司,安徽合肥,230000;安徽农业大学;四川烟草公司凉山州公司德昌营销部;安徽农业科学院烟草研究所 |
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| 摘 要： | 研究打顶时期、有效留叶数对中上部叶质量及等级构成及的影响。结果表明：随着打顶时间推迟和有效叶片数增加,烟株的株高、节距增加,上部叶叶面积降低;中、上部叶烟碱含量降低,上部叶糖分和钾的积累量增加。留叶数22片左右,现蕾后10d打顶（中心花开放50%左右）可以获得较高比例上等烟叶和经济效益。
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| 关 键 词： | 烤烟 打顶措施 烟叶质量 等级结构 |
Effects of Topping Measures on Middle and Upper Leaf Quality and Hierarchical Structure of Flue-cured Tobacco |
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| Affiliation: | Zhou Chuyue et al. ( Anhni Branch of China Tobacco Industrial Company, Hefei230000, China ) |
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| Abstract: | The effects of topping measures on middle and upper leaf quality and hierarchical structure of flue-cured tobacco was tested. Results showed that the plant height, the distance between internodes increased and upper leaf area decreased with the postponed topping stage and the improvement of apparent leaf number. When the topping date delayed and apparent leaf number increased, the nicotine content in middle and upper leaves decreased, and the carbohydrate and potassium content in upper leaves increased. The optimal economic efficiency and tobacco leaf quality appeared with approximately 22 leaves remained per plant, and topping at 10d after bud. |
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| Keywords: | Flue-cured tobacco Topping measure Tobacco leaf quality Hierarchical structure |
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