Full TGIF Record # 257037
Item 1 of 1
DOI:10.21273/HORTSCI.50.3.491
Publication Type:
i
Refereed
Author(s):Zhang, Jing; Unruh, J. Bryan; Kenworthy, Kevin
Author Affiliation:Zhang and Unruh: Department of Environmental Horticulture, University of Florida, West Florida Research and Education Center, Jay; Kenworthy: Department of Agronomy, University of Florida, Gainesville, FL
Title:Turf performance of bahiagrass, centipedegrass, and st. augustinegrass cultivars under a linear gradient irrigation system
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 50, No. 3, March 2015, p. 491-495.
# of Pages:5
Publishing Information:Alexandria, Virginia: American Society for Horticultural Science
Keywords:TIC Keywords: Cultivar evaluation; Drought stress; Irrigation requirements; Linear Gradient Irrigation System; Maintenance programs; Moisture sensors; Product profile; Water use restrictions
Abstract/Contents:"Periodic drought, irrigation requirements, and the enforcement of mandatory watering restrictions have posed a challenge for homeowners and landscape managers to maintain acceptable turf quality during dry periods. Information regarding irrigation requirements and performance of common turfgrass species used for residential and commercial landscapes in the southeastern United States would be valuable. A Linear Gradient Irrigation System (LGIS) provides an efficient way to measure cultivar responses to variable moisture regimes. Nine commercially available cultivars from three turfgrass species: 'Argentine' bahiagrass (BH) (Paspalum notatum Flu^D"gge); 'Common' and 'TifBlair' centipedegrass (CP) [Eremochloa ophiruoides (Munro) Hack.]; 'Captiva', 'Classic', 'Floratam', 'Palmetto', 'Raleigh', and 'Sapphire' st. augustinegrass (STA) [Stenotaphrum secundatum (Walt.) Kuntze.] were evaluated during naturally occurring dry periods in 2010 and 2011 for visual quality, color, and density and chlorophyll index. An irrigation gradient ranging from 0% to 120% of reference evapotranspiration (ETo) was provided by LGIS. Centipedegrass and BH had less demands on supplemental irrigation to maintain acceptable quality during periodic drought compared with STA. 'Argentine' BH performed similar to 'Common' CP for its visual quality except at the irrigation level of 40% ETo. Among STA cultivars, 'Palmetto' performed poorest in its relative drought response than other cultivars. 'Sapphire' STA needs further study to better characterize its drought response. The irrigation level of 120% ETo decreased turf quality except for 'Argentine' BH, and the irrigation replacement at 40% to 80% ETo, depending on turfgrass species and cultivar, may provide enough supplemental moisture to maintain acceptable turf quality during short-duration drought (≅2 weeks) in north Florida regions."
Language:English
References:21
Note:Figures
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, J., J. B. Unruh, and K. Kenworthy. 2015. Turf performance of bahiagrass, centipedegrass, and st. augustinegrass cultivars under a linear gradient irrigation system. HortScience. 50(3):p. 491-495.
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DOI: 10.21273/HORTSCI.50.3.491
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