Full TGIF Record # 92212
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Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2003.93.6.S127#page=2
    Last checked: 10/16/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Swan, B. M.; Brown, W. M.; Sakadzic, S.
Author Affiliation:Plant Pathology, Colorado State University, Fort Collins, Colorado
Title:Digital quantification techniques for the assessment of damage caused by Typhula spp. on turf
Meeting Info.:APS Pacific Division Meeting, June 22-24, 2002, San Jose, California
Source:Phytopathology. Vol. 93, No. 6, June 2003, p. S130.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Typhula; Assessment; Visual evaluation; Disease severity; Photography; Computer applications
Abstract/Contents:"Quantitative assessment of damage caused by fungi on turfgrass holds challenges and obstacles unique to turfgrass disease field research. The assessment of treatment efficacy in field research has relied upon visual assessment and a rating scale. Although visual ratings are very subjective, this method has become the industry standard. The objectives of this study were to develop new quantification techniques for evaluating damage caused by Typhula spp. on turf. Two digital systems for capturing images were developed. Digital images of field plots and customized computer software were used for quantifying diseased areas. Visual evaluations with a modified Horsfall-Barrett scale were also employed. There were no significant differences in the average disease ratings obtained from the two digital systems. Visual evaluations were significantly lower than both digital systems. The image capture and computer analysis approach to disease quantification provides permanent records of field trial plots, has a higher level of sensitivity, and generates exact percentages as opposed to a range of percentages."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Swan, B. M., W. M. Brown, and S. Sakadzic. 2003. Digital quantification techniques for the assessment of damage caused by Typhula spp. on turf. Phytopathology. 93(6):p. S130.
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Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2003.93.6.S127#page=2
    Last checked: 10/16/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 599 .P48
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