Tuesday, 8 November 2005
9

Evaluation of Imaging and Non-Imaging Sensing Techniques in Quantifying Different Turf Quality Parameters.

Siddhartha Narra, Thomas W. Fermanian, and Thomas B. Voigt. Dept. of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 1102 S Goodwin Ave, S-406 Turner Hall, Urbana, IL 61801

This paper presents the use of objective techniques in evaluating the color, texture, and density components of turfgrass quality in different Kentucky bluegrass, creeping bentgrass, and tall fescue cultivars. Image sensing equipment like multispectral digital video camera and standard digital camera, and hand-held non-image scanning devices like turf color meter and chlorophyll meter were evaluated in a series of experiments during the 2004 and 2005 growing seasons. The accuracy, consistency and speed of evaluation of these sensing devices will be discussed in relation to subjective quality measurements. The results will also focus on the limitations of each of these methods in evaluating different quality components.

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