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Vehicle-Mounted Optical Sensing

An Objective Means for Evaluating Turf Quality

^a Dep. of Horticulture and Landscape Architecture, Oklahoma State Univ., Stillwater, OK 74078
^b Dep. of Biosystems and Agricultural Engineering, Oklahoma State Univ., Stillwater, OK 74078

View larger version (15K): [in a new window]   Fig. 1. The relationship between normalized difference vegetation index (NDVI) and tall fescue turf color on a 1 to 9 scale with 9 the deepest green and percentage live cover (PLC) on a 0 to 100% scale. Model: NDVI = 0.258 + 0.4867 x log10 turf color + 1.053 x 10-7 x PLC3, R2 = 0.80, P < 0.0001.

View larger version (15K): [in a new window]   Fig. 2. The relationship between normalized difference vegetation index (NDVI) and creeping bentgrass turf color on a 1 to 9 scale with 9 the deepest green and percentage live cover (PLC) on a 0 to 100% scale. Model: NDVI = 0.305 + 0.3072 x log10 turf color + 1.1757 x 10-7 x PLC3, R2 = 0.50, P < 0.0001.