NDLI: A meta-analysis of responses of wheat yield formation to elevated ozone concentration

Content Provider	Springer Nature Link
Author	Feng, ZhaoZhong Kobayashi, Kazuhiko Wang, XiaoKe Feng, ZongWei
Copyright Year	2009
Abstract	The meta-analysis method was applied to quantitatively investigate effects of the elevated ozone concentration ([O$_{3}$]) on chlorophyll concentration, gas exchange and yield components of wheat. There were 39 effective references through Web of Science (ISI, USA) and Chinese journal full-text database (CNKI, China). The results of meta-analysis indicated that elevated [O$_{3}$] decreased grain yield, grain weight, grain number per ear, ear number per plant and harvest index by 26%, 18%, 11%, 5% and 11%, respectively, relative to ambient air. The decrease in leaf physiological characters was much greater than that in yield when wheat was expose to elevated [O$_{3}$], while light-saturated photosynthetic rate (Asat), stomatal conductance (Gs) and chlorophyll content (Chl) decreased by 40%, 31%, and 46%, respectively. The responses to elevated [O$_{3}$] between spring wheat and winter wheat were similar. Most of the variables showed a linear decrease trend with an increase of [O$_{3}$]. The most significant decrease for Asat, Gs and Chl was found in grain filling stage. Elevated [CO$_{2}$] could significantly ameliorated or offset the detrimental effects caused by elevated [O$_{3}$].
Starting Page	249
Ending Page	255
Page Count	7
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	54
Issue Number	2
e-ISSN	18619541
Language	English
Publisher	SP Science in China Press
Publisher Date	2009-02-05
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	meta-analysis elevated [CO$_{2}$] wheat ozone gas exchange yield Engineering Earth Sciences Chemistry/Food Science Physics Life Sciences Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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