Elevated ozone effects on potato leaf physiology, growth, and yield: a meta-analysis

被引:0
|
作者
Abraham Okrah
Shenglan Li
Evgenios Agathokleous
Zhaozhong Feng
机构
[1] Nanjing University of Information Science and Technology,Collaborative Innovation Center On Forecast and Evaluation of Meteorological Disaster
[2] Nanjing University of Information Science and Technology,Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology
[3] Kwame Nkrumah University of Science and Technology,Department of Meteorology and Climate Science
来源
Environmental Science and Pollution Research | 2023年 / 30卷
关键词
Air pollution; Food security; Ozone pollution; Photosynthesis; Plant yield; Potato;
D O I
暂无
中图分类号
学科分类号
摘要
Potato is an important crop worldwide and threatened by various environmental stresses, including elevated ozone (e[O3]). Here, we conducted a meta-analysis to quantify the effect of e[O3] on potato plants and how it varies depending upon different experimental conditions. Regarding plant growth and biomass, e[O3] significantly decreased shoot biomass by 18% and belowground biomass by 35%, while it increased the leaf area index by 19% and total number of injured leaves by 146%. As for yield, e[O3] significantly decreased the total tuber number by 21%. A relatively pronounced effect of e[O3] on the stomatal conductance was observed when exposure lasted 31–60 days, which was significantly greater than that after exposure lasted 96–311 days. The overall quantity of leaves was mainly decreased by higher (100–150 ppb) than lower (30–80 ppb) concentrations of e[O3] compared to ambient O3. The effect of e[O3] on the total tuber number was significant mainly when exposure lasted 31–90 days and was greater in plants grown in growth chambers than those planted in open-top chambers and glasshouses. The effect of e[O3] stress on physiology, growth, and yield varied among cultivars, with some cultivars showing marked tolerance relative to other cultivars. The findings can guide strategies to manage the negative impacts of e[O3] stress on potato production.
引用
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页码:120483 / 120495
页数:12
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