Does high pH give a reliable assessment of the effect of alkaline soil on seed germination? A case study with Leymus chinensis (Poaceae)

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• 作者：Hongyuan Ma ; Haoyu Yang ; Xiaotao Lü ; Yuepeng Pan ; Haitao Wu…
• 关键词：Alkaline soil ; Buffer ; Electrical conductivity ; Soil pH ; Vegetation restoration
• 刊名：Plant and Soil
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：394
• 期：1-2
• 页码：35-43
• 全文大小：285 KB
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• 作者单位：Hongyuan Ma (1)
  Haoyu Yang (1)
  Xiaotao Lü (2)
  Yuepeng Pan (3)
  Haitao Wu (1)
  Zhengwei Liang (1)
  Mark K. J. Ooi (4)
  
  1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin, 130102, China
  2. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
  3. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
  4. Centre for Sustainable Ecosystem Solutions, School of Biological Sciences, University of Wollongong, New South Wales, 2522, Australia
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Sciences
  Soil Science and Conservation
  Plant Physiology
  Ecology
  
• 出版者：Springer Netherlands
• ISSN：1573-5036

文摘

Background and aims Alkaline soils, characterized by high pH, are representative of degraded regions throughout the world. Studying germination in relation to alkalinity can contribute to understanding how species cope with such conditions. Although the effects of pH have been widely studied, it is unknown whether germination response to pH gradients created with buffer solutions is representative of the conditions experienced in alkaline soils. Our aims were to (1) determine if high pH gives an accurate assessment of the effects of alkaline soils on germination, and (2) identify the inhibitory factors for germination in alkaline soils.