Full TGIF Record # 63015
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Stier, J. C.; Filiault, D. L.; Palta, J. P.
Author Affiliation:University of Wisconsin-Madison
Title:Freezing phenomena in turfgrasses visualized using infrared video thermography.
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. 126.
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; Lolium perenne; Poa supina; Temperatures; Roots; Mode of action; Ice-nucleating bacteria; Crown; Techniques
Abstract/Contents:"Infrared video thermography was used to observe freezing events in cold-acclimated and non-acclimated perennial ryegrass (Loliumperenne) and supina bluegrass (Poa supina). Mature turf plants were grown hydroponically for four weeks at non-acclimating (20/15 C) or acclimating (5/2 C) day/night temperatures. An imaging radiometer was used to view exothermic events in whole plants as temperatures were decreased from 2 C to -10 C. Each tissue type exhibited a unique exotherm. Root systems always froze first, followed by crowns, then shoots and leaves. Freezing occurred bidirectionally in roots but was acropetal in crowns, shoots, and leaves. Cold-acclimated supina bluegrass possessed the greatest intrinsic barriers to ice propagation, particularly in the crown. Ice-nucleating bacteria placed plant surfaces did not induce freezing of plant tissues."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stier, J. C., D. L. Filiault, and J. P. Palta. 1999. Freezing phenomena in turfgrasses visualized using infrared video thermography.. Annu. Meet. Abstr. 91:p. 126.
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