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Next generation of elevated [CO2] experiments with crops : a critical investment for feeding the future world

Ainsworth, Elizabeth A. and Beier, Claus and Calfapietra, Carlo and Ceulemans, Reinhart and Durand-Tardif, Mylene and Farquhar, Graham D. and Godbold, Douglas L. and Hendrey, George R. and Hickler, Thomas and Kaduk, Jörg and Karnosky, David F. and Kimball, Bruce A. and Körner, Christian and Koornneef, Maarten and Lafarge, Tanguy and Leakey, Andrew D. B. and Lewin, Keith F. and Long, Stephen P. and Manderscheid, Remy and McNeil, David L. and Mies, Timothy A. and Miglietta, Franco and Morgan, Jack A. and Nagy, John and Norby, Richard J. and Norton, Robert M. and Percy, Kevin E. and Rogers, Al. (2008) Next generation of elevated [CO2] experiments with crops : a critical investment for feeding the future world. Plant, cell & environment, Vol. 31, H. 9. pp. 1317-1324.

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Official URL: http://edoc.unibas.ch/dok/A5249746

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Abstract

A rising global population and demand for protein-rich diets are increasing pressure to maximize agricultural productivity. Rising atmospheric [CO(2)] is altering global temperature and precipitation patterns, which challenges agricultural productivity. While rising [CO(2)] provides a unique opportunity to increase the productivity of C(3) crops, average yield stimulation observed to date is well below potential gains. Thus, there is room for improving productivity. However, only a fraction of available germplasm of crops has been tested for CO(2) responsiveness. Yield is a complex phenotypic trait determined by the interactions of a genotype with the environment. Selection of promising genotypes and characterization of response mechanisms will only be effective if crop improvement and systems biology approaches are closely linked to production environments, that is, on the farm within major growing regions. Free air CO(2) enrichment (FACE) experiments can provide the platform upon which to conduct genetic screening and elucidate the inheritance and mechanisms that underlie genotypic differences in productivity under elevated [CO(2)]. We propose a new generation of large-scale, low-cost per unit area FACE experiments to identify the most CO(2)-responsive genotypes and provide starting lines for future breeding programmes. This is necessary if we are to realize the potential for yield gains in the future.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Pflanzenökologie (Körner)
UniBasel Contributors:Körner, Christian
Item Type:Article
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Blackwell
ISSN:0140-7791
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:44

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