华北农学报 ›› 1994, Vol. 9 ›› Issue (2): 39-45. doi: 10.3321/j.issn:1000-7091.1994.02.008

所属专题: 烟草 抗旱节水

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干旱胁迫下烤烟光合特性和氮代谢研究

韩锦峰1, 汪耀富1, 岳翠凌2, 张秀英3   

  1. 1. 河南农业大学, 郑州 450002;
    2. 河南农业大学, 郑州;
    3. 郑州市邙山区农委
  • 收稿日期:1993-12-31 出版日期:1994-06-28

A Study on Photosynthetic Characteristics add Nitrogen Metabolism in Flue-curedTobacco under Drought Stress

Han Jinfeng1, Wang Yaofu1, Yue Culling2, Zhang Xiuying3   

  1. Henan Agricultural University, Zhengzhou 450002
  • Received:1993-12-31 Published:1994-06-28

摘要: 以烤烟品种NC89(NicotianatabacumL)为材料,在盆栽条件下研究了干旱胁迫对烤烟光合特性和氮素代谢的影响。结果表明,在干旱胁迫下烤烟叶片叶绿素含量减少,叶绿体希尔反应活力下降,净光合强度减弱,硝酸还原酶活性降低,脯氨酸含量升高,而呼吸速率则先上升后下降。上述指标均随土壤水分状况的变化而变化,表明它们对干旱胁迫的反应都很敏感。

关键词: 干旱胁迫, 光合特性, 氮代谢, 烤烟

Abstract: The effects of drought stress on photosynthetic characteristics and nitrogen metabolism in flue-cured tobacco leaves were studied with the cultivar NC89(Nicotiana tabacum L.) under pot experiment.The results showed that the chlorophyll content,the Hill reactivity of chloroplasts,net photosynthetic rate and the nitrate reductase(NR)activity in flue-cured tobacco leaves decreased, while the proline(PRO)content in the leaveg increased under drought stress.The rate of respiration raised under mild drought stress,but declined under serious drought stress.The above-mentioned indices changed with soil water conditions,it indicated that the responses of these indices to drought stress were sensitive.

Key words: Drought stress,Photosynthetic characteristics, Nitrogen metabolism, Flue-cuted tobacco

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韩锦峰, 汪耀富, 岳翠凌, 张秀英. 干旱胁迫下烤烟光合特性和氮代谢研究[J]. 华北农学报, 1994, 9(2): 39-45. doi: 10.3321/j.issn:1000-7091.1994.02.008.

Han Jinfeng, Wang Yaofu, Yue Culling, Zhang Xiuying. A Study on Photosynthetic Characteristics add Nitrogen Metabolism in Flue-curedTobacco under Drought Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(2): 39-45. doi: 10.3321/j.issn:1000-7091.1994.02.008.

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