Reduced ozone by air filtration consistently improved grain yield in wheat
Pleijel, H
HERO ID
783797
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 783797 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Reduced ozone by air filtration consistently improved grain yield in wheat |
| Authors | Pleijel, H |
| Journal | Environmental Pollution |
| Volume | 159 |
| Issue | 4 |
| Page Numbers | 897-902 |
| Abstract | This study considered effects of reduced [O(3)] on wheat yield. Open-top chamber charcoal filtered air treatments were compared with non-filtered treatments for field-grown wheat. 30 experiments meeting requirements were found, representing nine countries in North America, Europe and Asia. 26 experiments reported improved yield and 4 experiments reduced yield by filtration, a significant positive effect. Average yield improvement was 9%. Average daytime [O(3)] was reduced by filtration from 35 to 13 nmol mol(-1). Filtration efficiency was 63% for O(3) and 56% for SO(2). For NO(x) it was observed that NO(2) was reduced and NO increased by filtration. Thus, filters convert NO(2) to NO. Most experiments reported low or very low [SO(2)] and [NO(x)]. Thus, O(3) can be concluded to be the main phytotoxic component in the experiments. Elevated [NO(2)] was observed in one experiment. The conclusion is that current [O(3)] over large parts of the world adversely affect wheat yield. |
| Doi | 10.1016/j.envpol.2010.12.020 |
| Pmid | 21255889 |
| Wosid | WOS:000288357800009 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000288357800009 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Charcoal filter; Grain mass; Nitrogen dioxide; Nitric oxide; Ozone; Sulphur dioxide; Wheat; Yield |
| Is Qa | No |