Document Detail

Improving ecophysiological simulation models to predict the impact of elevated atmospheric CO(2) concentration on crop productivity.
MedLine Citation:
PMID:  23388883     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Process-based ecophysiological crop models are pivotal in assessing responses of crop productivity and designing strategies of adaptation to climate change. Most existing crop models generally over-estimate the effect of elevated atmospheric [CO2], despite decades of experimental research on crop growth response to [CO2].
ANALYSIS: A review of the literature indicates that the quantitative relationships for a number of traits, once expressed as a function of internal plant nitrogen status, are altered little by the elevated [CO2]. A model incorporating these nitrogen-based functional relationships and mechanisms simulated photosynthetic acclimation to elevated [CO2], thereby reducing the chance of over-estimating crop response to [CO2]. Robust crop models to have small parameterization requirements and yet generate phenotypic plasticity under changing environmental conditions need to capture the carbon-nitrogen interactions during crop growth.
CONCLUSIONS: The performance of the improved models depends little on the type of the experimental facilities used to obtain data for parameterization, and allows accurate projections of the impact of elevated [CO2] and other climatic variables on crop productivity.
Xinyou Yin
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Publication Detail:
Type:  Journal Article     Date:  2013-02-06
Journal Detail:
Title:  Annals of botany     Volume:  112     ISSN:  1095-8290     ISO Abbreviation:  Ann. Bot.     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-07-23     Completed Date:  2013-11-15     Revised Date:  2014-08-04    
Medline Journal Info:
Nlm Unique ID:  0372347     Medline TA:  Ann Bot     Country:  England    
Other Details:
Languages:  eng     Pagination:  465-75     Citation Subset:  IM    
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MeSH Terms
Carbon / metabolism*
Carbon Dioxide / metabolism*
Climate Change
Crops, Agricultural / growth & development*,  metabolism,  physiology
Models, Theoretical*
Nitrogen / metabolism
Plant Leaves / growth & development,  metabolism,  physiology
Plant Stomata / metabolism,  physiology
Reg. No./Substance:
142M471B3J/Carbon Dioxide; 7440-44-0/Carbon; N762921K75/Nitrogen
Comment In:
Ann Bot. 2013 Aug;112(3):477-8   [PMID:  23788745 ]

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