| 摘要: |
| 烟草赤星病发病危害的叶位主要是烟株下部，使其烟碱与还原糖含量降低，蛋白质及总氮含量提高；随发病严重度提高，烟碱和还原糖含量下降，蛋白质和总氮含量增加；病情严重度与化学成分的相关分析表明，造成主要烟叶化学成分发生显著变化的临界病情严重度为11.3％，提出烤烟叶片若有10％以下赤星病班存在，不显著影响烟叶质量。 |
| 关键词: 烤烟，烟草病害，烟叶化学成分 |
| DOI： |
| 分类号:S435.72 |
| 基金项目: |
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| Effects of Tobacco Disease(Alternaria alternata Kissler)on the Major Chemical Components of Flu-cured Tibacco Leaves |
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Liu Mengjun Yang Hai Yang Yuxiu
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| Abstract: |
| Tobacco disease,Alternaria alternata (Friss)Kissler,mainly infects the leaves under the middle of flue-cured tobacco stem and can reduce nicotine and soluble sugar contained in the leaves.At the same time it increases protein the total nitrogen contained in the leaves,As the disease severity rises,the nicotine and soluble sugar decreases,and the protein and total nitrogen increase in the infected leaves.According to statistical analysis,the critical discase severity is 11.3%.Therefore,it is suggested that the quality of the leaves not be deteriorated obviously under the disease severity of less than 10%. |
| Key words: Flu-cured tobacco,tobacco disease,leaf comoonents |
