Full TGIF Record # 72403
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Richardson, M. D.; Wright, B. S.; Purcell, L. C.; Karcher, D. E.
Author Affiliation:University of Arkansas
Title:Using digital photography to quantify disease incidence in turfgrass research plots
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. 170.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Visual evaluation; Disease susceptibility; Software; Technology; Disease control; Photography
Abstract/Contents:"Disease incidence in turfgrass research plots is generally assessed by visual ratings or by counting and measuring diseased areas, techniques which produce variable data and are labor-intensive. Studies were undertaken to assess the potential of digital image analysis as a tool to accurately quantitate [quantify] disease incidence in turfgrass research plots. Digital images of diseased bermudagrass research plots were taken with a Nikon digital camera and incidence of disease was measured by visual assessment or with a linear grid. Digital images were analyzed using SigmaScan Software, a program that can identify specific colors in a digital image and then count the area of the image field that contains the color. Diseased area determined by SigmaScan software [Software] was regressed against the amount of area determined either through visual assessments or grid measurements. Excellent results were obtained using SigmaScan software, especially when the data was regressed against physical measurements of the diseased area. This technique should provide researchers with a fast, easy method of quantifying diseased areas in research plots."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richardson, M. D., B. S. Wright, L. C. Purcell, and D. E. Karcher. 2000. Using digital photography to quantify disease incidence in turfgrass research plots. Annu. Meet. Abstr. p. 170.
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