Full TGIF Record # 127655
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Web URL(s):https://gsrpdf.lib.msu.edu/?file=/2000s/2007/070918.pdf
    Last checked: 01/26/2017
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Author(s):Huang, Bingru; Xu, Yan
Author Affiliation:Huang: Professor; Xu: Graduate Research Assistant, Department of Plant Sciences, Cook College, Rutgers University, New Brunswick, New Jersey
Title:Some like it hot: Rutgers University scientists continue to unravel the mystery of creeping bentgrass heat tolerance in hopes of improving this vital turfgrass species
Section:Research you can use
Other records with the "Research you can use" Section
Source:USGA Green Section Record. Vol. 45, No. 5, September/October 2007, p. 18-21.
Publishing Information:Far Hills, NJ: United States Golf Association, Green Section
# of Pages:4
Keywords:TIC Keywords: Agrostis stolonifera; Heat resistance; Cultivar improvement; Senescence; Heat stress; Ethylene; Abscisic acid; Cytokinins; Quality evaluation; Chlorophyll content; Carotenoids; Soil temperature; Agrostis scabra
Abstract/Contents:Presents a study conducted to "determine whether superior heat tolerance in the thermal bentgrass was associated with metabolic factors regulating heat-induced leaf senescence, specifically changes in the three major senescence-related hormones (ethylene, ABA, and cytokinins)." Details methods and materials used in the study, stating that "creepeing bentgrass (cv. Pencross) plugs were collected from field plots at Hort Farm II, Rutgers University, [New Jersey]. Plants of A. scabra, originally collected from geothermally heated areas in Yellowstone National Park, Wyoming, were propagated in greenhouses at Rutgers University...Plants of both species were exposed to 35°C [celsius]/30°C (day/night, high temperature) or 20°C/15°C (68°F [Fahrenheit] day/59°F night, optimum temperature) for 35 days in controlled-environment growth chambers." Reports that "heat stress caused decline in turf quality in both bentgrass species, but the decline occured three weeks later in the thermal bentgrass than creeping bentgrass. Chlorophyll and carotenoid content of the thermal bentgrass exposed to heat stress were maintained at the optimum temperature level for approximately 14 days without any significant decrease from 21 and 28 days, respectively. The decline in turf quality, chlorophyll, and carotenoid content was less severe for the thermal bentgrass than creeping bentgrass." Concludes that these studies "suggest that foliar application of cytokinins or ethylene inhibitors may be useful to suppress or delay leaf senescence and ultimately improve turfgrass performance during summer months."
See Also:See also original publication USGA Turfgrass and Environmental Research Online, 6(15) August 1 2007, p. [1-6] R=126531 R=126531
See Also:Other items relating to: Summertime Blues
Note:Includes sidebar, "Connecting the dots: An interview with Dr. Binru Huang, Rutgers University, regarding heat-induced leaf senescence of creeping bentgrass", p. 21 by Dr. Jeff Nus
Pictures, color
Reprint appears in The Turf Line News, Vol. 211 April/May 2009, p. 30-32
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huang, B., and Y. Xu. 2007. Some like it hot: Rutgers University scientists continue to unravel the mystery of creeping bentgrass heat tolerance in hopes of improving this vital turfgrass species. USGA Green Sec. Rec. 45(5):p. 18-21.
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    Last checked: 01/26/2017
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MSU catalog number: SB 433.15 .U84
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