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烟叶白化对烤烟生理生化性状的影响

Chinese Tobacco Science(2007)

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Abstract
研究比较了白化烟株和正常烟株理化性状的差异。结果表明,白化烟株叶片干鲜比降低,叶绿体色素含量明显低于正常烟株,且叶绿素a的降解速度高于叶绿素b,叶绿素的降解速度高于类胡萝卜素。丙二醛和可溶性糖含量高于正常烟株,且可溶性糖含量差异极显著,而根系活力与正常烟株的根系活力差异不显著。白化烟株茎中的可溶性糖、还原糖和烟碱含量低,而淀粉含量高;下二棚叶片中总糖和还原糖的含量高于正常烟株,烟碱含量低于正常烟株,茎、叶中蛋白质和总氮含量差异不大。
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Key words
physiology and biochemistry,leaf chlorosis,flue-cured tobacco
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