Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta-analysis
文献类型：期刊论文
| 作者 | Feng, Zhaozhong; Kobayashi, Kazuhiko; Ainsworth, Elizabeth A. |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2008-11 |
| 卷号 | 14期号:11页码:2696-2708 |
| 关键词 | air pollution atmospheric change biomass elevated [CO2] global change grain quality ozone photosynthesis stomata yield component |
| 英文摘要 | We quantitatively evaluated the effects of elevated concentration of ozone (O-3) on growth, leaf chemistry, gas exchange, grain yield, and grain quality relative to carbon-filtered air (CF) by means of meta-analysis of published data. Our database consisted of 53 peer-reviewed studies published between 1980 and 2007, taking into account wheat type, O-3 fumigation method, rooting environment, O-3 concentration ([O-3]), developmental stage, and additional treatments such as drought and elevated carbon dioxide concentration ([CO2]). The results suggested that elevated [O-3] decreased wheat grain yield by 29% (CI: 24-34%) and aboveground biomass by 18% (CI: 13-24%), where CI is the 95% confidence interval. Even in studies where the [O-3] range was between 31 and 59 ppb (average 43 ppb), there was a significant decrease in the grain yield (18%) and biomass (16%) relative to CF. Despite the increase in the grain protein content (6.8%), elevated [O-3] significantly decreased the grain protein yield (-18%). Relative to CF, elevated [O-3] significantly decreased photosynthetic rates (-20%), Rubisco activity (-19%), stomatal conductance (-22%), and chlorophyll content (-40%). For the whole plant, rising [O-3] induced a larger decrease in belowground (-27%) biomass than in aboveground (-18%) biomass. There was no significant response difference between spring wheat and winter wheat. Wheat grown in the field showed larger decreases in leaf photosynthesis parameters than wheat grown in < 5 L pots. Open-top chamber fumigation induced a larger reduction than indoor growth chambers, when plants were exposed to elevated [O-3]. The detrimental effect was progressively greater as the average daily [O-3] increased, with very few exceptions. The impact of O-3 increased with developmental stages, with the largest detrimental impact during grain filling. Both drought and elevated [CO2] significantly ameliorated the detrimental effects of elevated [O-3], which could be explained by a significant decrease in O-3 uptake resulting from decreased stomatal conductance. |
| WOS记录号 | WOS:000260307100019 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21841]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Feng, Zhaozhong,Kobayashi, Kazuhiko,Ainsworth, Elizabeth A.. Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta-analysis[J]. GLOBAL CHANGE BIOLOGY,2008,14(11):2696-2708. |
| APA | Feng, Zhaozhong,Kobayashi, Kazuhiko,&Ainsworth, Elizabeth A..(2008).Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta-analysis.GLOBAL CHANGE BIOLOGY,14(11),2696-2708. |
| MLA | Feng, Zhaozhong,et al."Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta-analysis".GLOBAL CHANGE BIOLOGY 14.11(2008):2696-2708. |
入库方式： OAI收割
来源：生态环境研究中心
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