Full TGIF Record # 72276
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Richardson, Michael D.
Author Affiliation:University of Arkansas
Title:Late-season management of bermudagrass to enhance cold hardiness
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. 169.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Cynodon dactylon; Sports turf; Temperatures; Winter injury; Nitrogen fertilization; Growth regulators; Trinexapac-ethyl; Cold resistance; Cynodon transvaalensis; Rhizomes; Density; Fall fertilization; Cold stress
Cultivar Names:Tifway
Abstract/Contents:"Bermudagrass (Cynodon dactylon) is a popular sports turf grass in the upper transition zone but low-temperature injury is a common problem in regions where winter temperatures can drop below -12 C. A two-year study was initiated to determine the effects of late-season nitrogen (N) and growth regulator (trinexapac-ethyl) applications on the morphology and cold hardiness of an established Tifway bermudagrass turf. Treatments included either a single application (5 g N per sq. meter) of urea in September or a dual application in September and October. In addition, plots were either sprayed on Sep. 15 with 0.012 ml of trinexapac-ethyl/sq. meter or treated with the same rate of growth regulator on Sep. 15 and Oct. 15. In the winter following treatments, plots were rated for rhizome and stolon density and rhizomes were extracted from the soil and exposed to temperatures of either -2, -4, -6, or -8 C in a controlled freeze chamber. Late-season N extended the growing season of the bermudagrass and stimulated earlier spring green-up. In addition, both a single and dual application of N increased the number of rhizomes. Late-season applications of growth regulator had no effect on the morphology of the turf, but did increase the freeze tolerance of the rhizomes. It was concluded from this study that late-season management can impact the performance and cold tolerance of bermudagrass."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richardson, M. D. 2000. Late-season management of bermudagrass to enhance cold hardiness. Annu. Meet. Abstr. p. 169.
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MSU catalog number: S 1 .A58
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