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Hybrid bermudagrass (Cynodon dactylon · C. transvaalensis) varieties such as Tifway and TifSport commonly are used on athletic fields. Several experimental hybrid bermudagrasses have been recently developed. However, data describing the performance of these bermudagrasses under simulated athletic field traffic are limited. A 2-year study was conducted evaluating the traffic tolerance of five experimental (2004-76, 2004-83, 2004-78, Tift 11, and 2004-77) and three commercially available (‘Tifway’, ‘TifSport’, and ‘TifGrand’) hybrid bermudagrasses. These bermudagrasses were subjected to two mowing (mowing at 0.87 inches or mowing at 0.87 inches + grooming to a 0.10-inch depth) and overseeding [no overseeding or overseeding with perennial ryegrass (Lolium perenne) at 12 lb/ 1000 ft of pure live seed] regimes. Simulated traffic tolerance using the Cady traffic simulator (CTS) was quantified using measurements of turfgrass cover with digital image analysis (DIA). Experimental bermudagrasses Tift 11 and 2004-76 and the commercially available variety TifGrand yielded turfgrass cover values greater than or equal to ‘Tifway’, a commonly used variety, on all rating dates each year. Experimental bermudagrass 2004-83 yielded the lowest turfgrass cover values on each date. Findings suggest that ‘TifGrand’, 2004-76, and Tift 11 may be suitable for use on athletic fields.

Evaluation of Experimental Bermudagrasses under Simulated Athletic Field Traffic with Perennial Ryegrass Overseeding