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| DOI: | 10.1016/j.envexpbot.2009.07.003 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0098847209001452
Last checked: 04/14/2014
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wherley, Benjamin G.;
Sinclair, Thomas R. |
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| Author Affiliation: | Agronomy Physiology Laboratory, University of Florida, Gainesville, FL |
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| Title: | Differential sensitivity of C3 and C4 turfgrass species to increasing atmospheric vapor pressure deficit |
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| Source: | Environmental and Experimental Botany. Vol. 67, No. 2, December 2009, p. 372-376. |
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| Publishing Information: | Elsevier |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: C-3 plant; C-4 plant; Comparisons; Cool season turfgrasses; Growth analysis; Temperature response; Transpiration; Vapor pressure; Variety trials; Warm season turfgrasses
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| Abstract/Contents: | "Temperature and vapor pressure deficit (VPD) effects on turfgrass growth are almost always confounded in experiments because VPD commonly is substantially increased in elevated-temperature treatments. The objective of this study as to examine specifically the influence of VPD on transpiration response of four 'warm-season' (C4) and four 'cool-season' (C3) turfgrasses to increasing VPD at a stable temperature (29.3 ± 1.5 °C). Although transpiration rates were noticeably lower in C4 grasses, transpiration rates increased linearly in response to increasing VPD across the range of 0.8-3.0 kPa. In contrast, transpiration rates of C3 increased sharply with increasing VPD across the range of low VPDs, but became constrained at higher VPDs (>1.35 kPa). Restricted transpiration rate at elevated VPD was most evident in Agrostis palustris and Lolium perenne. Assuming restricted transpiration rates reflect a limitation on leaf CO2 uptake, these results indicate that the commonly observed decline in growth of C3 (and success of C4) grasses at elevated temperature may include a sensitivity to elevated VPD." |
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| Language: | English |
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| References: | 28 |
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| Note: | Equations
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wherley, B. G., and T. R. Sinclair. 2009. Differential sensitivity of C3 and C4 turfgrass species to increasing atmospheric vapor pressure deficit. Environ. Exp. Bot. 67(2):p. 372-376. |
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| DOI: 10.1016/j.envexpbot.2009.07.003 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0098847209001452
Last checked: 04/14/2014
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b4885055 |
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