Full TGIF Record # 296663
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DOI:10.2134/agronj2017.08.0444
Web URL(s):https://dl.sciencesocieties.org/publications/aj/articles/110/2/472
    Last checked: 04/13/2018
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https://dl.sciencesocieties.org/publications/aj/pdfs/110/2/472
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Publication Type:
i
Refereed
Author(s):Berndt, William L.; Riger, Jonathon W.; Riger, Charles W.
Author Affiliation:Berndt: William Berndt Associates, Fort Myers, FL; Jonathon W. Riger: Voltech Instruments, Inc., Fort Myers, FL; Charles W. Riger: The Golf Club at Magnolia Landing, North Fort Myers, FL
Title:Kinetics of hydrocarbon induced visual green color loss on a bermudagrass green
Section:Agronomy, soils and environmental quality
Other records with the "Agronomy, soils and environmental quality" Section
Source:Agronomy Journal. Vol. 110, No. 2, March/April 2018, p. 472-479.
Publishing Information:Madison, Wisconsin: American Society of Agronomy
# of Pages:8
Related Web URL:https://dl.sciencesocieties.org/publications/aj/abstracts/110/2/472
    Last checked: 04/13/2018
    Notes: Abstract only
Keywords:TIC Keywords: Chemical injury; Color evaluation; Color retention; Cynodon dactylon x Cynodon transvaalensis; Golf greens; Hydraulic fluid; Hydrocarbons; Image analysis; Kinetics; Visual evaluation
Abstract/Contents:"Hydrocarbon machine fluids (MF) injure turf, inducing visual green color loss (VGCL) with onset of shoot necrosis. The dynamics of MF-induced VGCL are unknown, having never been described. This research was conducted to increase understanding of color loss dynamics by investigating the kinetics of MF-induced VGCL on a hybrid bermudagrass green (Cynodon dactylon [L.] Pers. var. dactylon x C. transvaalensis Burtt-Davy). The effect six different MF had on changes in hue angle (θ) of shoots with time (t) was explained using digital image analysis (DIA) and curve fitting. Treating shoots with MF decreased mean θ from 88 at day zero to 33 at 12 d, as shoot color changed from green to brown. Fitting an exponential decay model of the form θ = θ0 + a0e-kt to dθ/dt data revealed the rate of VGCL (-k) ranged from -4.45 d-1 (motor oil) to -0.16 d-1 (vegetable hydraulic oil) varying with MF (p < 0.01). Curve fitting also revealed dθ/dt was a first order reaction; plots of ln(θ - θ0) vs. t were linear (R2 = 1.0) for all six MF, while plots of zero order, half order, and second order reactions were not. Determining the rate of MF-induced VGCL and its reaction order increased understanding of color loss dynamics by giving mathematical meaning to the processes. This was a step forward in understanding turfgrass injury behavior. The approach used for examining VGCL dynamics was inexpensive and nondestructive, and may be useful for other researchers studying plant color dynamics."
Language:English
References:37
Note:Pictures, color
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Berndt, W. L., J. W. Riger, and C. W. Riger. 2018. Kinetics of hydrocarbon induced visual green color loss on a bermudagrass green. Agron. J. 110(2):p. 472-479.
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DOI: 10.2134/agronj2017.08.0444
Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/110/2/472
    Last checked: 04/13/2018
    Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/aj/pdfs/110/2/472
    Last checked: 04/13/2018
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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