Effects of elevated O-3 exposure on nutrient elements and quality of winter wheat and rice grain in Yangtze River Delta, China
文献类型: 外文期刊
第一作者: Zheng, Feixiang
作者: Zheng, Feixiang;Du, Keming;Sun, Zhongfu;Zheng, Feixiang;Wang, Xiaoke;Zhang, Weiwei;Hou, Peiqiang;Lu, Fei;Zhang, Weiwei
作者机构:
关键词: Ozone;Winter wheat;Rice;Nutrient elements;Grain quality
期刊名称:ENVIRONMENTAL POLLUTION ( 影响因子:8.071; 五年影响因子:8.35 )
ISSN: 0269-7491
年卷期: 2013 年 179 卷
页码:
收录情况: SCI
摘要: With the open-top chambers (OTCs) in situ in Yangtze River Delta, China in 2007 and 2008, the effects of elevated O-3 exposure on nutrient elements and quality of winter wheat and rice grain were investigated. Grain yield per plant of winter wheat and rice declined in both years. The N and S concentrations increased under elevated O-3 exposure in both years and C-N ratios decreased significantly. The concentrations of K, Ca, Mg, P, Mn, Cu and Zn in winter wheat and the concentrations of Mg, K, Mn and Cu in rice increased. The concentrations of protein, amino acid and lysine in winter wheat and rice increased and the concentration of amylose decreased. The increase in the nutrient concentration was less than the reduction of grain yield in both winter wheat and rice, and, hence, the absolute amount of the nutrients was reduced by elevated O-3. 2013 Elsevier Ltd. All rights reserved.
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