Season-long elevation of ozone concentration to projected 2050 levels under fully open-air conditions substantially decreases the growth and production of soybean
Morgan, PB; Mies, TA; Bollero, GA; Nelson, RL; Long, SP
HERO ID
79186
Reference Type
Journal Article
Year
2006
Language
English
PMID
| HERO ID | 79186 |
|---|---|
| In Press | No |
| Year | 2006 |
| Title | Season-long elevation of ozone concentration to projected 2050 levels under fully open-air conditions substantially decreases the growth and production of soybean |
| Authors | Morgan, PB; Mies, TA; Bollero, GA; Nelson, RL; Long, SP |
| Journal | New Phytologist |
| Volume | 170 |
| Issue | 2 |
| Page Numbers | 333-343 |
| Abstract | Mean surface ozone concentration is predicted to increase 25% by 2050. Previous chamber studies of crops report large yield losses due to elevation of tropospheric ozone, and have been the basis for projecting economic loss. -This is the first study with a food crop (soybean) using Free-Air gas Concentration Enrichment (FACE) technology for ozone fumigation (www.soyface.uiuc.edu). A 23% increase in ozone concentration from an average daytime ambient 56 p.p.b. over two growing seasons decreased seed yield by 20%. -Total aboveground net primary production decreased by 17% without altering dry mass allocation among shoot organs, except seed. Fewer live leaves and decreased photosynthesis in late grain filling appear to drive the ozone-induced losses in production and yield. -These results validate previous chamber studies suggesting that soybean yields will decrease under increasing ozone exposure. In fact, these results suggest that when treated under open-air conditions yield losses may be even greater than the large losses already reported in earlier chamber studies. Yield losses with elevated ozone were greater in the second year following a severe hailstorm, suggesting that losses may due to ozone may be exacerbated by extreme climatic events. |
| Doi | 10.1111/j.1469-8137.2006.01679.x |
| Pmid | 16608458 |
| Wosid | WOS:000236248200015 |
| Url | http://doi.wiley.com/10.1111/j.1469-8137.2006.01679.x |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | ECRIB.New Phytol. 170: 333-343. |
| Is Public | Yes |
| Language Text | English |
| Keyword | tropospheric ozone; climate change; atmospheric change; free-air gas concentration enrichment (FACE); primary production; seed yield; soybean (Glycine max). FACE; food security; global change; ozone; soybean |
| Is Peer Review | Yes |
| Relationship(s) |
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