Full TGIF Record # 70928
Item 1 of 1
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Dionne, J.; Castonguay, Y.; Rochette, P.; Nadeau, P.; Desjardins, Y.
Author Affiliation:Dionne and Desjardins: Laval University, Qu├ębec, Canada; Castonguay, Rochette and Nadeau: Agriculture and Agri-Food Canada, Sainte-Foy
Title:Physiological effects of anoxia on annual bluegrass during cold acclimation
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 153.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Oxygen; Oxygen requirement; Ice cover; Poa annua; Cold acclimation; Protective covers; Golf greens; Golf courses; Cold resistance; Oxygen deprivation
Abstract/Contents:"Ice encasement and impermeable winter protective covers can induce anaerobic conditions on annual bluegrass (Poa annua var. reptans) golf greens. We assessed biochemical changes and freezing tolerance of annual bluegrass exposed to a progressively developing anoxic stress during cold acclimation under natural winter conditions in an unheated greenhouse. Freezing tests indicated that freezing tolerance (LT50) was decreased by up to 7C for annual bluegrass exposed to anoxic conditions in comparison with controls acclimated under natural atmospheric composition. Moreover, specific biochemical changes were observed under anoxic conditions including a decrease in high molecular weight fructan concentrations and an accumulation of specific amino acids (ALA, SER, TYR). The exposure of annual bluegrass to hypoxia/anoxia is conducive to conditions interfering with its winter survival potential."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dionne, J., Y. Castonguay, P. Rochette, P. Nadeau, and Y. Desjardins. 2000. Physiological effects of anoxia on annual bluegrass during cold acclimation. Annu. Meet. Abstr. p. 153.
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