| 打顶对烤烟主要化学成分及多酚氧化酶活性的影响 |
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| 引用本文： | 黄勇,周冀衡,李鹏飞,王东,杨怀千.打顶对烤烟主要化学成分及多酚氧化酶活性的影响[J].作物研究,2009,23(3):188-190. |
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| 作者姓名： | 黄勇 周冀衡 李鹏飞 王东 杨怀千 |
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| 作者单位： | 湖南农业大学烟草科学与工程技术中心,长沙,410128 |
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| 摘 要： | 为探讨烤烟品质的顶端调控措施，研究了不同打顶措施对烟叶多酚氧化酶活性和主要化学成分的影响。结果表明，与不打顶处理相比，打顶抹权明显促进了烟碱的合成以及在烟叶中的积累，有增加还原糖含量的趋势，能减少后期烟叶中钾素的流失，从而提高了上、中部叶的钾含量，有效提高了成熟期多酚氧化酶的活性。
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| 关 键 词： | 烤烟 栽培 打顶 钾 多酚氧化酶 |
Effects of Topping on Main Chemical Components and Polyphenol Oxidase Activity in Flue-cured Tobacco |
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| HUANG Yong,ZHOU Ji-heng,LI Pong-fei,WANG Dong,YANG Hui-qian.Effects of Topping on Main Chemical Components and Polyphenol Oxidase Activity in Flue-cured Tobacco[J].Crop Research,2009,23(3):188-190. |
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| Authors: | HUANG Yong ZHOU Ji-heng LI Pong-fei WANG Dong YANG Hui-qian |
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| Institution: | HUANG Yong,ZHOU Ji-heng,LI Pong-fei ,WANG Dong,YANG Hui-qian (Research Centre of Tobacco Engineering and Technology, Hunan Agricultural University,Changsha,Hunan 410128,China) |
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| Abstract: | To investigate the apical regulation measures on quality of flue-cured tobacco, the effects of different topping measures on activity of polyphenol oxidase （PPO） and chemical components of tobacco leaves were studied. The results showed that topping and debud clearly promoted synthesis of nicotine and its accumulation in tobacco leaves, increased content of reduced sugar, improved PPO activity at maturity, reduced potassium loss from leaves in late growth stage and increased potassium content in upper and middle leaves. |
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| Keywords: | Flue-cured tobacco Cultivation Topping Potassium Polyphenol oxidase |
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