Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2748

Full Length Research Paper

Effect of Ozone fumigation on morpho-physiology and yield of field-grown rice in Pearl River Delta, China

Qiong Wang
  • Qiong Wang
  • College of Water Sciences, Beijing Normal University, Beijing 100875, China.
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Bilige Sude
  • Bilige Sude
  • Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Ming Dong
  • Ming Dong
  • College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China.
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Yuan Shi
  • Yuan Shi
  • State Environment Protection key Laboratory of Regional Eco-process and Function Assessment, Beijing 100012, China.
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Chunmei Geng
  • Chunmei Geng
  • Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Xiaoke Wang
  • Xiaoke Wang
  • State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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  •  Received: 03 January 2013
  •  Accepted: 02 March 2013
  •  Published: 15 May 2014

Abstract

Ozone pollution may cause a reduction in grain crops production. The response relationship between plants and Ozone is an important factor to assess the effect of Ozone pollution. In order to learn the effect of Ozone pollution on major grain crops in Pearl River Delta, this study used Open-top chamber (OTC) to fumigate the rice in the field, and researched the effects on the physical manifestations, physiological form and yield of rice which was fumigated by different Ozone concentrations. According to the experimental results, with increase in Ozone fumigation gradient, the rice was damaged gradually. And the height, biomass and yield of rice were reduced. By fitting concentration response model and dose response model, it can be estimated that the Ozone concentration and Ozone AOT40 value for 10% rice yield loss of single cluster were 61.7 nL/L and 13.08 h nL/L respectively in this experimental area.

 

Key words: Modeling, Open-top chamber (OTC), Ozone, rice, production loss, AOT40.