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| Web URL(s): | http://www.jstor.org/stable/2558790?seq=1#page_scan_tab_contents
Last checked: 12/17/2015
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Newberry, R. M.;
Wolfenden, J. |
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| Author Affiliation: | Division of Biological Sciences, Insitute of Environmental & Biological Sciences, Lancaster University, Lancaster LA1 4YQ, UK |
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| Title: | Effects of elevated CO₂ and nutrient supply on the seasonal growth and morphology of Agrostis capillaris |
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| Source: | New Phytologist. Vol. 132, No. 3, March 1996, p. 403-411. |
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| Publishing Information: | Oxford, England: Cambridge University Press. |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Nitrogen response; Nitrogen uptake; Carbon dioxide; Agrostis tenuis; Nitrogen; Phosphorus; Potassium; Shoot growth; Morphology; Leaf area
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| Abstract/Contents: | "Responses to elevated CO₂ have been studied using an upland grass species Agrostis capillaris L. The plants were grown in sand culture with a range of N, P and K concentrations, in 'Solardome' growth chambers with either ambient air or a CO₂ concentration of 250 μmol CO₂ mol-¹ above ambient. The interactive effects of high CO₂ and nutrient supply on plant growth and morphology were monitored throughout the growing season. A. capillaris exhibited positive growth responses to enhanced CO₂, even at limiting supplies of N and P. Moreover, greater shoot mass at elevated CO₂ was attributed to disproportionate increases in leaf and tiller number, resulting in an increase in the average leaf number per tiller. However, total leaf are remained unaffected, indicating that leaf size was reduced. There was no evidence of any acclimation in the growth response of A. capillaris to additional CO₂, even in N and P-stressed plants. On the contrary, a stimulation production was observed later in the growing season. A consistent interacton was observed between N and P concentrations, whereby the response to one element was greater at higher concentrations of the other. In addition, there were indications of competition among the three elements for uptake at the root. These findings indicate the importance of multifactoral nutrient experiments in developing and understanding of the complex relationships during CO₂ enrichment." |
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| Language: | English |
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| References: | 26 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Newberry, R. M., and J. Wolfenden. 1996. Effects of elevated CO₂ and nutrient supply on the seasonal growth and morphology of Agrostis capillaris. New Phytol. 132(3):p. 403-411. |
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| Web URL(s):
http://www.jstor.org/stable/2558790?seq=1#page_scan_tab_contents
Last checked: 12/17/2015
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .N38 |
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