Full TGIF Record # 63252
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Dionne, J.; Desjardins, Y.; Huff, D. R.; Castonguay, Y.
Author Affiliation:Dionne, Desjardins: Laval University, Quebec; Huff: The Pennsylvania State University; Castonguay: Agriculture and Agri-Food Canada, Sainte-Foy
Title:Freezing tolerance assessment of green-type annual bluegrass ecotypes
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Salt Lake City, UT: October 31 - November 4, 1999
Source:1999 Annual Meeting Abstracts [ASA/CSSA/SSSA]. Vol. 91, 1999, p. 131.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Freezing; Cold resistance; Poa annua; Ecotypes; Comparisons; Identification; Temperatures
Abstract/Contents:"The identification of annual bluegrass (Poa annua var. reptans) ecotypes harboring superior tolerance to subfreezing temperature will be key to the development of greens-type adapted to harsh winter conditions. Our objective was to assess cold tolerance amongst 46 annual bluegrass ecotypes originating from various regions in North America (QC, NY, PA, NJ, MD, VA, NE, CO, WA, and OR). Plants were cold acclimated to natural winter conditions in an unheated greenhouse during winter 1998-99. Freezing tolerance was expressed as the lethal temperature for 50% of the plants (LT(@50)). Determinations of LT(@50) in February and March 1999 revealed variability for freezing tolerance ranging from <-26 to -18Ā°C amongst annual bluegrass ecotypes."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dionne, J., Y. Desjardins, D. R. Huff, and Y. Castonguay. 1999. Freezing tolerance assessment of green-type annual bluegrass ecotypes. Annu. Meet. Abstr. 91:p. 131.
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