Comparison of a diurnal vs steady-state ozone exposure profile on growth and yield of oilseed rape (Brassica napus L.) in open-top chambers in the Yangtze Delta, China
文献类型：期刊论文
| 作者 | Wang, Xiaoke ; Zheng, Qiwei ; Feng, Zhaozhong ; Xie, Juquig ; Feng, Zongwei ; Ouyang, Zhiyun ; Manning, William J. |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2008-11 |
| 卷号 | 156期号:2页码:449-453 |
| 关键词 | Ozone Exposure regimes Oilseed rape Yield Biomass |
| 英文摘要 | Most available exposure-response relationships for assessing crop loss due to elevated ozone (O(3)) have been established using data from chamber and open-top chamber experiments. using a simulated constant O(3) concentration exposure (square wave), which is not consistent with the diurnal variation of O(3) concentration that occurs in nature. We investigated the response of oilseed rape (Brassica napus L.) to O(3) as affected by two exposure regimes: one with a diurnal variation (CF100D) and another with a constant concentration (CF100). Although the two exposure regimes have the same mean O(3) concentration and accumulated O(3) concentration above 40ppb (AOT40), our results show that O(3) in CF100D reduced biomass and number of pods/plant more than O(3) at CF100. Both O(3) exposures resulted in larger seed weights/100 pods compared to CF. Numbers of seeds/100 pods were reduced by CF100. While numbers of seeds/100 pods in the CF100D chamber were comparable to those in CF. Our results suggest that chamber experiments that use a constant O(3) exposure may understimate O(3) effects on biomass and yields. (C) 2008 Published by Elseiver Ltd. |
| WOS记录号 | WOS:000261049500026 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21823]  |
| 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 | Wang, Xiaoke,Zheng, Qiwei,Feng, Zhaozhong,et al. Comparison of a diurnal vs steady-state ozone exposure profile on growth and yield of oilseed rape (Brassica napus L.) in open-top chambers in the Yangtze Delta, China[J]. ENVIRONMENTAL POLLUTION,2008,156(2):449-453. |
| APA | Wang, Xiaoke.,Zheng, Qiwei.,Feng, Zhaozhong.,Xie, Juquig.,Feng, Zongwei.,...&Manning, William J..(2008).Comparison of a diurnal vs steady-state ozone exposure profile on growth and yield of oilseed rape (Brassica napus L.) in open-top chambers in the Yangtze Delta, China.ENVIRONMENTAL POLLUTION,156(2),449-453. |
| MLA | Wang, Xiaoke,et al."Comparison of a diurnal vs steady-state ozone exposure profile on growth and yield of oilseed rape (Brassica napus L.) in open-top chambers in the Yangtze Delta, China".ENVIRONMENTAL POLLUTION 156.2(2008):449-453. |
入库方式： OAI收割
来源：生态环境研究中心
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