Enhancing biomass production and yield by maintaining enhanced capacity for CO2 uptake in response to elevated CO2

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DOIResolve DOI: http://doi.org/10.4141/CJPS2013-151
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TypeArticle
Journal titleCanadian Journal of Plant Science
ISSN0008-4220
Volume94
Issue6
Pages10751083; # of pages: 9
Subjectacclimation; carbon dioxide; cereal; crop yield; dicotyledon; photosynthesis; phytomass; productivity; source-sink dynamics
AbstractUsing four model plants, two members of the Gramineae, rye and wheat, and two Brassicaceae, Brassica napus and Arabidopsis thaliana, two fundamental approaches were exploited to determine how regulating source-sink development would alter photosynthesis, productivity and yield during long-term acclimation to elevated CO2. In one approach we exploited the cold acclimation response of winter wheat, rye and B. napus. In the other approach we modified the dark respiration in A. thaliana to alter availability of respiratory substrates required for anabolic processes, such as fatty acid metabolism, thus reducing sink limitations on canopy photosynthesis at elevated CO2. Taken together, the data show the importance of maintaining strong demand from active sinks when the aboveground canopy is being exposed to elevated levels of the primary substrate of photosynthesis, CO2.
Publication date
PublisherCanadian Science Publishing
LanguageEnglish
AffiliationNational Research Council Canada; Aquatic and Crop Resource Development
Peer reviewedYes
NPARC number21272741
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Record identifier05ac685b-cacb-4802-819a-0d87ea574fde
Record created2014-12-03
Record modified2016-05-09
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