Full TGIF Record # 128187
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Web URL(s):http://usgatero.msu.edu/v06/n18.pdf
    Last checked: 09/19/2007
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Author(s):Anderson, Jeff; Taliaferro, Charles; Martin, Dennis; Wu, Yanqi; Anderson, Michael
Author Affiliation:Anderson, J. and Martin: Professor, Department of Horticulture and Landscape Architecture ; Taliaferro: Emeritus Regents Professor ; Wu: Assistant Professor; Anderson, M.: Associate Professor, Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, Oklahoma
Title:Bermudagrass freeze tolerance
Source:USGA Turfgrass and Environmental Research Online. Vol. 6, No. 18, September 15 2007, p. [1-7].
# of Pages:9
Publishing Information:Far Hills, NJ: United States Golf Association, Green Section
Keywords:TIC Keywords: Cynodon; Cold resistance; Cultivar variation; Cold acclimation; Winter injury
Abstract/Contents:"Bermudagrasses, Cynodon spp., periodically experience freeze damage when grown in the transition zone for warm and cool-season turfgrasses. Therefore, there is a need to develop and characterize bermudagrass cultivars with superior freeze tolerance, as well as other turf quality characteristics. Our objective was to determine relative freeze tolerance levels of recently released cultivars, advanced lines, and standard cultivars from the 2002 National Turfgrass Evaluation Program bermudagrass trials using laboratory based methodology. Experiments were divided into vegetatively-propagated and seed-propagated cultivars. Twenty-seven seed-propagated cultivars were randomly divided into five groups with 'Arizona Common' serving as a standard in each of the five groups. 'Tifway' was used as a standard cultivar for the three vegetatively-propagated groups, facilitating comparisons of relative tolerance across groups. A range in freeze tolerance from 22.5° F (-5.3° C) to 16.3° F (-8.7° C) was observed for seed-propagated cultivars. Most seed-propagated cultivars had a freeze tolerance level similar to 'Arizona Common' (21.2° F), but four were significantly more freeze tolerant. Freeze tolerance of vegetatively-propagated cultivars ranged from 20.8° F (-6.2°C) to 11.3° F ( -11.5° C). While three cultivars were significantly less hardy than 'Tifway', four bermudagrasses exhibited significantly greater freeze tolerance, reflecting the potential to survive in the northern boundary of the transition zone with a lower probability of winterkill. Our research findings include: The most freeze tolerant seed-propagated cultivars were 'CIS-CD6', 'Riviera', 'Transcontinental', and 'SWI-1014'. 'OKC 70-18', 'Ashmore', 'Patriot', and 'Midlawn' were the most freeze tolerant vegetatively-propagated cultivars. 'GN-1', 'Celebration', and 'MS-Choice' were significantly less freeze tolerant than 'Tifway'."
See Also:See also related article "Bermudagrass freeze tolerance: Some seeded and vegetatively propagated bermudagrass cultivars are more likely to tolerate severe winters in the transition zone" Golf Course Management, 75(10) October 2007, p. 110-114 R=128615 R=128615
See Also:Other Reports from this USGA research project: 2003-14-255
Note:Summary as abstract
Pictures, color
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Anderson, J., C. Taliaferro, D. Martin, Y. Wu, and M. Anderson. 2007. Bermudagrass freeze tolerance. USGA Turfgrass Environ. Res. Online. 6(18):p. [1-7].
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    Last checked: 09/19/2007
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