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Long-term acclimation of leaf production, development, longevity and quality following 3 yr exposure to free-air CO2 enrichment during canopy closure in Populus

Record type: Article

• The effects of elevated CO2 on leaf development in three genotypes of Populus were investigated during canopy closure, following exposure to elevated CO2 over 3 yr using free-air enrichment.
• Leaf quality was altered such that nitrogen concentration per unit d. wt (Nmass) declined on average by 22 and 13% for sun and shade leaves, respectively, in elevated CO2. There was little evidence that this was the result of 'dilution' following accumulation of nonstructural carbohydrates. Most likely, this was the result of increased leaf thickness. Specific leaf area declined in elevated CO2 on average by 29 and 5% for sun and shade leaves, respectively.
• Autumnal senescence was delayed in elevated CO2 with a 10% increase in the number of days at which 50% leaf loss occurred in elevated as compared with ambient CO2.
• These data suggest that changes in leaf quality may be predicted following long-term acclimation of fast-growing forest trees to elevated CO2, and that canopy longevity may increase, with important implications for forest productivity.

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Citation

Tricker, P.J., Calfapietra, C., Kuzminsky, E., Puleggi, R., Ferris, R., Nathoo, M., Pleasants, L.J., Alston, V., Angelis, P. and Taylor, G. (2004) Long-term acclimation of leaf production, development, longevity and quality following 3 yr exposure to free-air CO2 enrichment during canopy closure in Populus New Phytologist, 162, (2), pp. 413-426. (doi:10.1111/j.1469-8137.2004.01057.x).

More information

Submitted date: 17 October 2003
Published date: 1 May 2004
Keywords: POPFACE, elevated CO2, leaf development, canopy closure, leaf longevity, specific leaf area, leaf nitrogen concentration, Populus

Identifiers

Local EPrints ID: 56720
URI: http://eprints.soton.ac.uk/id/eprint/56720
ISSN: 0028-646X
PURE UUID: 42c2c41b-d619-4e97-95e8-3c9056e9ae1b

Catalogue record

Date deposited: 08 Aug 2008
Last modified: 17 Jul 2017 14:30

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Contributors

Author: P.J. Tricker
Author: C. Calfapietra
Author: E. Kuzminsky
Author: R. Puleggi
Author: R. Ferris
Author: M. Nathoo
Author: L.J. Pleasants
Author: V. Alston
Author: P. Angelis
Author: G. Taylor

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