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| Web URL(s): | http://www.nrcresearchpress.com/doi/pdf/10.1139/b89-350
Last checked: 09/29/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Nijs, I.;
Impens, I.;
Behaeghe, T. |
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| Author Affiliation: | University of Antwerp, Wilrijk, Belgium (first 2) and State University of Ghent, Ghent, Belgium |
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| Title: | Effects of Long-Term Elevated Atmospheric CO2 Concentration on Lolium perenne and Trifolium repens Canopies in the Course of a Terminal Drought Stress Period |
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| Source: | Canadian Journal of Botany. Vol. 67, No. 9, September 1989, p. 2720-2725. |
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| Publishing Information: | Ottawa: National Research Council |
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| Related Web URL: | http://www.nrcresearchpress.com/doi/abs/10.1139/b89-350
Last checked: 09/29/2015
Notes: English abstract only |
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| Keywords: | TIC Keywords: Carbon dioxide; Lolium perenne; Trifolium repens; Canopy; Drought stress; Water use
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| Abstract/Contents: | "A terminal drought stress regime was imposed on vegetatively fully developed Lolium perenne L. cv. Vigor and rifolium repens L. cv. Blanca canopies in semicontrolled growth chambers that provided a high (626 + or - 50 uL x L-1) and an ambient (358 + or - 35 uL x L-1) CO2 growth environment. The chambers served as measurement units in an open system for continuous CO2 and water vapour exchange assessment. When stress was building up, high CO2 increased the ratio of real to potential canopy evapotranspiration in both species, thus reducing the higher potential rates that are generally observed in high CO2 under unstressed conditions towards the level of ambient CO2 stands, without immediately affecting the net higher CO2 exchange rates that characterize the high CO2 treatment. Lolium perenne is more sensitive to drought stress in its initial response and divides the available amount of water more proportionally over the stress period than Trifolium repens. Water-use efficiency is roughly doubled and is affected later by drought stress in high CO2 for both species. It is concluded that long-term high CO2 treatment favours the survival of the species examined when exposed to severe, rapidly developing drought stress." |
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| Language: | English |
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| References: | 14 |
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| Note: | Abstract also appears in French
Figures
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nijs, I., I. Impens, and T. Behaeghe. 1989. Effects of Long-Term Elevated Atmospheric CO2 Concentration on Lolium perenne and Trifolium repens Canopies in the Course of a Terminal Drought Stress Period. Can. J. Bot. 67(9):p. 2720-2725. |
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| Web URL(s):
http://www.nrcresearchpress.com/doi/pdf/10.1139/b89-350
Last checked: 09/29/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .C3 |
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