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| Web URL(s): | https://www.crops.org/publications/cs/pdfs/38/1/CS0380010175
Last checked: 08/05/2010
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): | Dean-Knox, D. E.;
Devitt, D. A.;
Verchick, L. S.;
Morris, R. L. |
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| Author Affiliation: | Dep. of Environmental and Resource Sci., Dep. of Biological Sci., Univ. of Nevada, 4505 Maryland Pkwy., WHI 123, Las Vegas, NV 89014. Cooperative Extension, univ. of Nevada, Reno, 2345 Red Rock St., Ste. 100, Las Vegas, NV 89102-3156. |
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| Title: | Physiological response of two turfgrass species to varying ratios of soil matric and osmotic potentials |
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| Source: | Crop Science. Vol. 38, No. 1, January/February 1998, p. 175-181. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Temperatures; Ratios; Festuca; Cynodon dactylon; Physiological responses
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| Abstract/Contents: | "Plants grown under saline conditions can experience elevated matric and osmotic stress between irrigation events. Research was conducted to assess the physiological response of tall fescue (Festuca arundinacea Schreber 'Monarch') and common bermudagrass (Cynodon dactylon L. 'Numex Sahara') to varying combinations of soil matric (Ψ^D[M) and osmotic potentials (Ψ^D[^D*p). Two line-source gradient experiments were conducted, using municipal water with an electrical conductivity (EC) of 1.1 dS m⁻¹ or saline aquifer water blended with municipal water (EC of 6.0 dS m⁻¹). Turf temperature, leaf xylem water potential (Ψ^D[L), tissue osmolality (Ψπ-^D]TISS), yield, evapotranspiration (ET^D]a), percent cover, turf color, and tissue ion concentrations were monitored during a 68-d drydown period during the summer of the second year of experimentation. The total soil water potential (Ψ^D[T) was highly linear with distance from the line source with no significant difference between fresh and saline treatments within each species (bermudagrass, Adj r²=0.867**, tall fescue, Adj r²=0.810*). Significantly lower soil osmotic potentials were recorded under the fresh treatment for both species. Turf temperature, yield, ETₐ turf color, and canopy cover responded to Ψ^D[M and Ψ^D[^D*p in an additive fashion. The Ψ^D[^D[L, Ψπ-^D[TISS and tissue ion concentrations in bermudagrass and Ψ^D[^D*p-^D[TISS and tissue ion concentrations in tall fescue responded in a nonadditive fashion, however. Our results suggest that water with a salinity level of 6.0 dS ⁻¹ could be used as a supplemental irrigation source for both tall fescue and bermudagrass if irrigation practices were designed to minimize water deficit." |
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| Language: | English |
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| References: | 34 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dean-Knox, D. E., D. A. Devitt, L. S. Verchick, and R. L. Morris. 1998. Physiological response of two turfgrass species to varying ratios of soil matric and osmotic potentials. Crop Sci. 38(1):p. 175-181. |
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| Web URL(s):
https://www.crops.org/publications/cs/pdfs/38/1/CS0380010175
Last checked: 08/05/2010
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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