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| DOI: | 10.1046/j.1469-8137.2002.00438.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1046/j.1469-8137.2002.00438.x/full
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1046/j.1469-8137.2002.00438.x/pdf
Last checked: 01/31/2014
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| Publication Type:
| Refereed |
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| Author(s): | Fernández, Roberto J.;
Wang, Mengben;
Reynolds, James F. |
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| Author Affiliation: | Department of Biology, Duke University, Durham, NC |
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| Title: | Do morphological changes mediate plant responses to water stress? A steady-state experiment with two C4 grasses |
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| Section: | Research
Other records with the "Research" Section
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| Source: | New Phytologist. Vol. 155, No. 1, July 2002, p. 79-88. |
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| Publishing Information: | Oxford, England: Blackwell Publishing, for the New Phytologist Trust |
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| # of Pages: | 10 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1046/j.1469-8137.2002.00438.x/abstract
Last checked: 01/31/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Responses; Leaf area ratio; Morphology; Water stress; Growth rate; Water use; Bouteloua eriopoda; Eragrostis lehmanniana; Drought; Carbon dioxide; Biomass; Allometry
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| Abstract/Contents: | "We hypothesized that plant growth reduction under water stress is caused primarily by a reduction of leaf-area ratio (LAR, leaf area per unit of total plant dry mass). Two perennial Chihuahuan desert grass species (slow-growing Bouteloua eriopoda and fast-growing Eragrostis lehmanniana) were subjected over 6 wk to a combination of two water-supply regimes (control and drought) and two levels of atmospheric CO2 partial pressure (375 and 750 μmol mol-1). Drought reduced final biomass in Bouteloua by 60% regardless of CO2 concentration. Eragrostis experienced a similar biomass reduction at 375 μmol mol-1, but large plants under elevated CO2 attained growth rates comparable to those of controls. Overall, for plants of similar size, drought reduced LAR in both species much more strongly than it affected net assimilation rate. This reduction in LAR was caused by reductions in both specific leaf area and leaf weight ratio. We conclude that reduced growth under drought can be considered as a byproduct of the same plastic, developmental responses that result in a reduced water loss." |
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| Language: | English |
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| References: | 47 |
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| See Also: | Other items relating to: Disasters - Drought |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fernández, R. J., M. Wang, and J. Reynolds. 2002. Do morphological changes mediate plant responses to water stress? A steady-state experiment with two C4 grasses. New Phytol. 155(1):p. 79-88. |
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| DOI: 10.1046/j.1469-8137.2002.00438.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1046/j.1469-8137.2002.00438.x/full
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1046/j.1469-8137.2002.00438.x/pdf
Last checked: 01/31/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .N38 |
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