English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/21116
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Interactive effects of elevated CO2, temperature and nitrogen on photosynthesis of wheat grown under temperature gradient tunnels.

AuthorsMartínez-Carrasco, Rafael ; Pérez Pérez, Pilar ; Morcuende, Rosa
KeywordsTriticum aestivum
Chlorophyll fluorescence
Climate change
Elevated CO2
Elevated temperature
Nitrogen
Photosynthetic acclimation
Stomatal conductance
Rubisco
Issue Date2005
PublisherElsevier
CitationEnvironmental and Experimental Botany, 2005. 54, 49-59.
AbstractThe effects of increased CO2, temperature and nitrogen on leaf photosynthesis of wheat were investigated in two field experiments under temperature gradient tunnels in a Mediterranean environment. Ambient and 700 μmol mol-1 CO2, ambient and 4 ºC warmer temperatures, and 80 and 120 kg nitrogen ha-1 were compared. Although rising CO2 concentrations increased photosynthesis, measurements at the same CO2 concentration showed decreased photosynthesis and stomatal conductance in plants grown at elevated CO2. Elevated growth CO2 decreased photosynthesis for any given value of intercellular CO2 concentration. Downward acclimation of photosynthesis was decreased at temperatures 4 ºC above ambient and high nitrogen supply, under both photorespiratory and non-photorespiratory measurement conditions. Growth in elevated CO2 decreased the quantum yield of Photosystem II (PSII) electron transport and the efficiency of energy capture by open PSII centres. At later stages of leaf growth, warm temperatures decreased maximal photochemical efficiency (Fv/Fm) at low, but not at high nitrogen supply. Fv/Fm increased with nitrogen application, although the quantum yield of electron transport in the light remained unchanged.
Publisher version (URL)http://www.sciencedirect.com/science
URI10261/21116
DOI10.1016/j.envexpbot.2004.05.004
ISSN0098-8472
Appears in Collections:(IRNASA) Artículos
Files in This Item:
File Description SizeFormat 
Environ Exp Bot_54_2005.pdf196,69 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.