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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2005jou891.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Suplick-Ploense, Mary R.;
Qian, Yaling |
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| Author Affiliation: | Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, Colorado |
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| Title: | Evapotranspiration, rooting characteristics, and dehydration avoidance: Comparisons between hybrid bluegrass and Kentucky bluegrass |
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| Section: | Physiology/stress physiology
Other records with the "Physiology/stress physiology" Section
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| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
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| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 2, 2005, p. 891-898. |
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| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Evapotranspiration; Rooting; Dehydration avoidance; Poa arachnifera; Hybrids; Poa pratensis; Cool season turfgrasses; Drought resistance; Heat resistance; Water use rate
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| Abstract/Contents: | "Kentucky bluegrass (Poa pratensis L.) (KBG) is the dominant cool-season turfgrass used throughout temperate regions of the USA. In the arid and semi-arid west, some government agencies have imposed restrictions on its use due to a presumed sensitivity to drought. Hybrid bluegrass (HBG), a cross between native Texas bluegrass (Poa arachnifera Torr.) and KBG, has been released as a heat-resistant bluegrass for the southern USA where KBG is unable to withstand supra-optimal summer temperatures. It is unknown if HBG possesses the ability to resist drought better than KBG. Hence, our objectives were to compare the evapotranspiration (ET) and dehydration avoidance of KBG and HBG. During 2000 and 2001, studies were conducted in the field in Fort Collins, CO to examine ET rates under non-limiting soil moisture conditions, vertical rooting patterns, and relationships among surface soil water depletion (SWD), leaf water content (LWC), and turfgrass responses to soil dry-down. Additionally, a study was conducted in a glasshouse to determine clippings yield and vertical rooting patterns. In the field, mean HBG ET (5.0mm d-1) was lower than that of KBG (6.1 mm d-1) during July through Sept. in 2000 and 2001. Mean HBG clippings yield in the glasshouse was significantly lower than KBG. In both the field and glasshouse, at each soil depth examined (0-20, 20-40, and 40-60 cm) HBG exhibited greater root length density (RLD) and root mass than KBG. In the field, HBG exhibited greater dehydration avoidance and maintained turfgrass quality longer during prolonged soil dry-down than KBG. These combined factors contributed significantly to the greater dyhydration avoidance observed in HBG compared to KBG." |
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| Language: | English |
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| References: | 28 |
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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):
Suplick-Ploense, M. R., and Y. Qian. 2005. Evapotranspiration, rooting characteristics, and dehydration avoidance: Comparisons between hybrid bluegrass and Kentucky bluegrass. Int. Turfgrass Soc. Res. J. 10(Part 2):p. 891-898. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2005jou891.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
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MSU catalog number: SB 433 .I52 v. 10 |
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