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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

Long-term acclimation of leaf production, development, longevity and quality following 3 yr exposure to free-air CO2 enrichment during canopy closure in Populus
Long-term acclimation of leaf production, development, longevity and quality following 3 yr exposure to free-air CO2 enrichment during canopy closure in Populus
• 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.
POPFACE, elevated CO2, leaf development, canopy closure, leaf longevity, specific leaf area, leaf nitrogen concentration, Populus
0028-646X
413-426
Tricker, P.J.
548fa071-e6d7-42f8-a027-7206c1000d82
Calfapietra, C.
0f6eb3ee-cec9-4d0b-86dc-ca2d0b586966
Kuzminsky, E.
eeb9d431-188f-427b-89c6-ac77bded61df
Puleggi, R.
ccfdb619-0941-41ce-a91c-70f9825df129
Ferris, R.
ee5900a0-3137-4b7c-a9a2-c64b22fade4b
Nathoo, M.
d3965801-fee4-4a7b-93d5-62d1b879cae2
Pleasants, L.J.
b68417cf-3570-4a9f-8dc0-895863342138
Alston, V.
8704fe22-9c8d-4d92-be91-d710f849fb9f
Angelis, P.
44bbb740-04cd-4aec-ac36-eab708b31301
Taylor, G.
f3851db9-d37c-4c36-8663-e5c2cb03e171
Tricker, P.J.
548fa071-e6d7-42f8-a027-7206c1000d82
Calfapietra, C.
0f6eb3ee-cec9-4d0b-86dc-ca2d0b586966
Kuzminsky, E.
eeb9d431-188f-427b-89c6-ac77bded61df
Puleggi, R.
ccfdb619-0941-41ce-a91c-70f9825df129
Ferris, R.
ee5900a0-3137-4b7c-a9a2-c64b22fade4b
Nathoo, M.
d3965801-fee4-4a7b-93d5-62d1b879cae2
Pleasants, L.J.
b68417cf-3570-4a9f-8dc0-895863342138
Alston, V.
8704fe22-9c8d-4d92-be91-d710f849fb9f
Angelis, P.
44bbb740-04cd-4aec-ac36-eab708b31301
Taylor, G.
f3851db9-d37c-4c36-8663-e5c2cb03e171

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), 413-426. (doi:10.1111/j.1469-8137.2004.01057.x).

Record type: Article

Abstract

• 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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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
ORCID for G. Taylor: ORCID iD orcid.org/0000-0001-8470-6390

Catalogue record

Date deposited: 08 Aug 2008
Last modified: 09 Jan 2022 02:58

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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 ORCID iD

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