Current surface ozone concentrations significantly decrease wheat growth, yield and quality

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Fältnamn	Indikatorer	Metadata
000		04534naa a2200565 4500
001		oai:gup.ub.gu.se/259646
003		SwePub
008		240528s2018 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://gup.ub.gu.se/publication/2596462 URI
024	7	a https://doi.org/10.1016/j.scitotenv.2017.09.1112 DOI
040		a (SwePub)gu
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Pleijel, Håkan,d 1958u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xpleha
245	1 0	a Current surface ozone concentrations significantly decrease wheat growth, yield and quality
264	1	b Elsevier BV,c 2018
520		a Tropospheric ozone is known to adversely affect crops and other vegetation. Most studies have focussed on the effects of elevated ozone levels vs. present ambient. We investigated the effect of present ambient surface ozone (O-3) concentrations vs. preindustrial on a range of agronomically important response variables in field-grown wheat, using results from 33 experiments (representing 9 countries, 3 continents, 17 cultivars plus one set of 4 cultivars) having both charcoal filtered (CF) and non-filtered (NF) air treatments. Average filtration efficiency was 62%, reducing the O-3 concentration from 35.6 +/- 10.6 SD ppb in NF to 13.7 +/- 8.8 SD ppb in CF. Average CF concentrations were in the range of levels believed to represent pre-industrial conditions, while NF concentrations were 7% lower than in the ambient air at plant height on the experimental sites. NF had significant (p < 0.05) negative effects compared to CF on grain yield (-8.4%), grain mass (-3.7%), harvest index (-2.4%), total above-ground biomass (-5.4%), starch concentration (-3.0%), starch yield (-10.9%), and protein yield (-6.2%). No significant effect was found for grain number and protein concentration. There was a significant relationship between the effect of filtration on grain yield and the difference in O-3 concentration between NF and CF treatments. The average yield loss per ppb O-3 removed was 0.38% and did not systematically vary with year of experiment (ranging from 1982 to 2010) or with the average O-3 level in the experiments. Although there are many differences among the field experiments included in this meta-analysis (e.g. genotype, degree of O-3 pollution of the site and year, nutrient and soil condition, filtration efficiency), our study clearly shows that there is a consistent and significant effect of present ambient O-3 exposure on a range of important response variables in wheat, the most strongly affected being starch yield. (C) 2017 Elsevier B.V. All rights reserved.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
653		a Filtration
653		a Grain mass
653		a Grain number
653		a Grain yield
653		a Protein
653		a Starch
653		a modern greek cultivars
653		a winter-wheat
653		a stomatal conductance
653		a air-pollution
653		a spring wheat
653		a grain-yield
653		a metaanalysis
653		a sensitivity
653		a impacts
653		a physiology
653		a Environmental Sciences & Ecology
653		a wler d
653		a 1988
653		a environmental pollution
653		a v53
653		a p135
700	1	a Broberg, Malin,d 1989u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xbrmal
700	1	a Uddling, Johan,d 1972u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xuddjo
700	1	a Mills, Gina,d 1959u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xmilgi
710	2	a Göteborgs universitetb Institutionen för biologi och miljövetenskap4 org
773	0	t Science of the Total Environmentd : Elsevier BVg 613, s. 687-692q 613<687-692x 0048-9697
856	4 8	u https://gup.ub.gu.se/publication/259646
856	4 8	u https://doi.org/10.1016/j.scitotenv.2017.09.111

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