标题：Effects of simulated acid rain on growth of wheat (Secale cereale L.) in north China
作者：Ni, Shou-Qing ;Cui, Qing-Jie
作者机构：[Ni, Shou-Qing ] School of Chemistry and Chemical Engineering, School of Environmental Science and Engineering, Shandong University, Jinan, China;[Cui 更多
会议名称：2011 International Symposium on Water Resource and Environmental Protection, ISWREP 2011
会议日期：20 May 2011 through 22 May 2011
来源：ISWREP 2011 - Proceedings of 2011 International Symposium on Water Resource and Environmental Protection
关键词：growth period; morphological parameter; physiological parameter; simulated acid rain
摘要：Most literatures used southern soil which is Laterite or Latosol (acidic red soil) to simulate acid rain in south China to study the effects of acid rain on special growth period of wheat. To investigate impacts of simulated acid rain (SAR) on crops in north China, wheat samples were sprayed in pot experiments during their vegetative and reproductive growth periods with a range of SAR solution at pH 2.0, 3.0, 4.0, 5.0 and deionized water (the control) by measurement of fresh & dry weights and leaf area of the plants, determination of chlorophyll (Chl), malondialdehyde (MDA), and catalase (CAT) in the plants organs, and observation of injury symptoms. The results indicated that the threshold value where blade injury was visible after the treatment with acid rain was at pH 3.0. Treatment with SAR had no significant effects on soil pH during the experimental period. After the treatment of SAR, MDA contents increased, but Chl contents decreased and activities of CAT were suppressed. Treatment with high acidity SAR reduced the wheat yields. Effects of SAR on wheat increased more dramatically with the increase of SAR acidity and were correlated with exposure times and doses of SAR. © 2011 IEEE.