TABLE 4C. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF VELVET BENTGRASS CULTIVARS GROWN ON A GREEN UNDER TRAFFIC STRESS AT AMHERST, MA 1/ 2009 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC WEAR 3/ DENSITY ESTABLISH- SCALPING QUALITY RATINGS NAME COLOR TOLERANCE SPRING MENT RATINGS JUN JUL AUG SEP OCT MEAN VILLA 5.3 7.0 9.0 46.7 6.3 6.3 7.3 7.3 7.0 6.0 6.8 SR 7200 5.0 5.0 9.0 46.7 6.3 6.7 5.7 6.3 5.7 5.0 5.9 LSD VALUE 1.0 0.9 0.9 13.2 1.6 0.8 1.2 0.9 1.1 0.6 0.5 C.V. (%) 7.9 0.0 0.0 0.0 11.2 6.3 6.3 10.3 6.4 0.0 5.6 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIES, SUBTRACT ONE ENTRY'S MEAN FROM ANOTHER ENTRY'S MEAN. STATISTICAL DIFFERENCES OCCUR WHEN THIS VALUE IS LARGER THAN THE CORRESPONDING LSD VALUE (LSD 0.05). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN. 3/ TRAFFIC APPLIED USING A GROOMING BRUSH A HACHED TO A WALK BEHIND GREENS MOWER. WEAR WAS APPLIED IN SEPTEMBER 2009, USING 50 PASSES ON ONE DAY. PLOTS WERE RATED THREE DAYS AFTER TREATMENT FOR INJURY.