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中国农学通报 ›› 2007, Vol. 23 ›› Issue (5): 235-235.

所属专题: 小麦

• 农学 农业基础科学 • 上一篇    下一篇

盐碱胁迫对燕麦光合特性的影响

王 波,张金才,宋凤斌,赵 敏,韩希英   

  • 出版日期:2007-05-05 发布日期:2007-05-05

The Effects of Saline-alkali Stress on Photosynthetic Charateristics in Oats

Wang Bo, Zhang Jincai, Song Fengbin, Zhao Min, Han Xiying   

  • Online:2007-05-05 Published:2007-05-05

摘要: 利用人工模拟光源研究了盐碱胁迫下燕麦叶片的光合特性。结果表明,轻度盐碱胁迫促进了燕麦叶片光合速率(Pn)的提高,随着盐碱浓度的进一步增强光合速率较对照降低,盐碱胁迫降低了燕麦叶片的胞间二氧化碳浓度(Ci)和蒸腾速率(Tr),重度盐碱胁迫下燕麦的水分利用率(WUE)增加。

关键词: 短波紫外线, 短波紫外线, 黄瓜幼苗, 生长, 光合特性

Abstract: Photosynthetic characteristics in oats leaves were measured under Saline-alkali stress in use of the simulated photosynthetic radiation (SPR). The results showed that photosynthetic rate (Pn) increased under slight saline-alkali stress, and with the increase of salt concentration, photosynthetic rate (Pn) decreased. The inter-cellular CO2 concentrations (Ci) and the transpiration rate (Tr) decreased with the increase of salt concentration. Water use efficiency (WUE) under serious saline-alkali stress increased.

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