DOI: 10.1111/gcb.13065
论文题名: Responses of wheat and rice to factorial combinations of ambient and elevated CO2 and temperature in FACE experiments
作者: Cai C. ; Yin X. ; He S. ; Jiang W. ; Si C. ; Struik P.C. ; Luo W. ; Li G. ; Xie Y. ; Xiong Y. ; Pan G.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 2 起始页码: 856
结束页码: 874
语种: 英语
英文关键词: Climate change
; Free-air CO2 enrichment
; Oryza sativa L.
; Photosynthesis parameters
; Plant nitrogen status
; Radiation-use efficiency
; Triticum aestivum L.
; Yield components
Scopus关键词: Oryza sativa
; Triticum aestivum
; carbon dioxide
; nitrogen
; biomass
; climate change
; growth, development and aging
; metabolism
; Oryza
; photosynthesis
; plant structures
; temperature
; wheat
; Biomass
; Carbon Dioxide
; Climate Change
; Nitrogen
; Oryza
; Photosynthesis
; Plant Components, Aerial
; Temperature
; Triticum
英文摘要: Elevated CO2 and temperature strongly affect crop production, but understanding of the crop response to combined CO2 and temperature increases under field conditions is still limited while data are scarce. We grew wheat (Triticum aestivum L.) and rice (Oryza sativa L.) under two levels of CO2 (ambient and enriched up to 500 μmol mol-1) and two levels of canopy temperature (ambient and increased by 1.5-2.0 °C) in free-air CO2 enrichment (FACE) systems and carried out a detailed growth and yield component analysis during two growing seasons for both crops. An increase in CO2 resulted in higher grain yield, whereas an increase in temperature reduced grain yield, in both crops. An increase in CO2 was unable to compensate for the negative impact of an increase in temperature on biomass and yield of wheat and rice. Yields of wheat and rice were decreased by 10-12% and 17-35%, respectively, under the combination of elevated CO2 and temperature. The number of filled grains per unit area was the most important yield component accounting for the effects of elevated CO2 and temperature in wheat and rice. Our data showed complex treatment effects on the interplay between preheading duration, nitrogen uptake, tillering, leaf area index, and radiation-use efficiency, and thus on yield components and yield. Nitrogen uptake before heading was crucial in minimizing yield loss due to climate change in both crops. For rice, however, a breeding strategy to increase grain number per m2 and % filled grains (or to reduce spikelet sterility) at high temperature is also required to prevent yield reduction under conditions of global change. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61502
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Agriculture, Nanjing Agricultural University, No. 1 Rd Weigang, Nanjing, Jiangsu, China; Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University, P.O. Box 430 6700, Wageningen AK, Netherlands; College of Resources and Environmental Sciences, Nanjing Agricultural University, No. 1 Rd Weigang, Nanjing, Jiangsu, China
Recommended Citation:
Cai C.,Yin X.,He S.,et al. Responses of wheat and rice to factorial combinations of ambient and elevated CO2 and temperature in FACE experiments[J]. Global Change Biology,2016-01-01,22(2)