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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (18): 245-248.

所属专题： 生物技术； 烟草种植与生产

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

叶面肥“天达-2116植物细胞膜稳态剂”对烟草叶片气体交换特征的影响

付在秋 王建林   

  • 收稿日期:2009-04-20 修回日期:2009-05-13 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:

    国家自然科学基金

Effects on foliar fertilizer to leaf gas exchange of Tobacco（Nicotiana tobacum L.）

  • Received:2009-04-20 Revised:2009-05-13 Online:2009-09-20 Published:2009-09-20

PDF (PC)

601

摘要：

摘要：为了揭示叶面肥“天达-2116”对烟草光合速率的影响，本试验对比分析了喷施和不喷施叶面肥“天达-2116”两种处理下，旺长期叶片的光合速率、蒸腾速率、气孔导度以及水分利用率对光强响应特征。结果表明：喷施叶面肥时烟草的光合速率、蒸腾速率、气孔导度都随光强的增强而逐渐增大。不喷施条件下，蒸腾速率和气孔导度随光强的增强而逐渐增大，而在高光强（>1200μmol s-1m-2）下，会产生光饱和现象。喷施叶面肥“天达-2116”条件下的光合速率、蒸腾速率、气孔导度均高于不喷施的，但并未改变水分利用效率。因此，适量喷施叶面肥“天达-2116”可以显著改善烟草叶片的的光合生理性状和气体交换能力。

关键词: 龙眼, 龙眼, RAPD, 聚类分析, 遗传多样性

Abstract:

Abstract：In order to reveal the effects on foliar fertilizer to photosynthetic rate, and increase the photosynthetic productivity of tobacco, we researched and analyzed the response characteristics of photosynthetic rate, transpiration rate, stomatal conductance and water use efficiency to light intensity during the fast-growing period. It indicated under application foliar fertilizer conditions, photosynthetic rate, transpiration rate, stomatal conductance all gradually increased with the light intensity enhancement. Under no application foliar fertilizer condition, transpiration rate and stomatal conductance gradually increased with the light intensity enhancement. Yet, when light intensity exceeded 1200μmol s-1m-2, it appeared photons saturation. Photosynthetic rate, transpiration rate, stomatal conductance under application foliar fertilizer conditions were higher than those under no application, but water use efficiency was no change. So, application foliar fertilizer would remarkably improve photosynthesis and leaf gas exchange of the tobacco.