TABLE 16. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS GROWN ON A GREEN UNDER TRAFFIC STRESS AT AMHERST, MA 1/ 2015-2018 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT DOLLAR SPRING ESTABLISH- SPOT QUALITY RATINGS NAME GREENUP MENT COUNT MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN PURE ECLIPSE (PST-ROPS) 4.7 41.7 18.7 2.7 6.6 6.9 6.7 6.7 6.1 5.9 6.5 5.8 6.2 6.1 MACDONALD (DLFPS-AP/3018) 4.8 41.7 24.3 3.7 6.1 6.0 6.6 6.4 6.0 5.8 6.3 6.2 6.3 6.0 TOUR PRO (GDE) 4.8 48.3 10.3 2.0 5.3 6.4 5.9 5.9 5.9 6.3 6.1 6.0 5.8 5.9 PIRANHA (DC-1) 4.2 38.3 8.3 2.7 5.9 6.4 6.2 6.0 5.8 5.7 6.0 5.6 5.8 5.8 L-93 XD 4.3 36.7 24.7 4.0 6.0 6.2 6.1 5.8 5.5 5.7 5.9 5.8 5.7 5.7 777 (DLFPS-AP/3054) 4.3 40.0 7.0 3.3 5.6 6.0 5.7 5.9 5.6 6.0 5.9 5.6 5.8 5.6 BARRACUDA 4.2 45.0 40.3 2.7 5.7 6.1 5.4 5.6 5.3 5.6 5.8 5.7 5.7 5.6 DLFPS-AP/3056 3.5 40.0 16.3 2.7 5.6 6.2 5.8 5.3 5.3 5.6 5.8 5.8 5.5 5.6 KINGDOM 3.7 48.3 5.7 2.0 5.3 6.3 6.1 5.6 5.6 5.8 5.3 5.4 5.2 5.6 PURE SELECT 3.5 40.0 6.7 2.0 5.6 6.2 6.3 5.9 5.4 5.6 6.0 5.4 5.3 5.6 DLFPS-AP/3058 4.3 41.7 11.0 2.7 5.6 6.1 5.7 5.4 5.3 5.5 5.9 5.8 5.7 5.5 LUMINARY 4.3 33.3 5.7 3.3 5.7 5.9 5.8 5.6 5.1 5.6 5.7 5.3 5.7 5.4 NIGHTLIFE 3.2 43.3 10.3 2.0 4.9 6.0 5.7 5.4 5.3 5.8 5.3 5.4 5.0 5.4 DLFPS-AP/3059 3.5 43.3 21.7 2.3 5.1 5.6 5.2 5.1 5.1 5.5 5.6 5.4 5.2 5.3 SHARK 3.5 41.7 17.3 2.0 5.1 5.4 5.8 5.6 5.1 5.7 5.3 5.3 5.2 5.2 V-8 3.7 43.3 16.7 2.3 5.4 6.0 5.7 5.2 5.3 5.3 5.3 4.9 4.5 5.2 ARMOR 3.5 38.3 31.0 2.3 4.6 5.1 5.7 5.2 5.0 5.3 5.3 4.9 4.7 5.0 DECLARATION 4.0 36.7 12.0 2.7 4.4 5.4 5.0 4.8 4.9 5.0 5.1 5.1 5.0 4.9 PENN A-1 2.5 36.7 21.7 2.0 4.3 5.2 5.2 4.7 4.8 4.9 4.8 5.0 4.7 4.8 PENNCROSS 2.2 40.0 30.3 2.0 3.2 4.1 3.7 3.3 3.5 4.0 4.1 4.1 4.2 3.8 LSD VALUE 1.1 6.7 22.4 0.7 0.6 0.6 0.4 0.5 0.6 0.4 0.5 0.5 0.6 0.3 C.V. (%) 24.5 9.0 64.6 16.8 13.4 11.9 9.1 10.6 13.6 10.5 10.9 10.4 10.1 8.6 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. TABLE 16. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS (CONT'D) GROWN ON A GREEN UNDER TRAFFIC STRESS AT AMHERST, MA 1/ 2015-2018 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ WEAR TOLERANCE RATINGS NAME SEPTEMBER OCTOBER NOVEMBER MAY_2016 JUL_2016 SEP_2016 MAY_2017 JUL_2017 SEP_2017 MAY_2018 JUL_2018 OCT_2018 PURE ECLIPSE (PST-ROPS) 5.3 5.3 4.7 5.7 5.7 6.7 5.3 5.3 6.3 5.3 5.0 6.0 MACDONALD (DLFPS-AP/3018) 6.3 6.3 5.7 6.7 6.3 6.7 5.3 5.3 6.3 4.7 4.7 5.3 TOUR PRO (GDE) 6.7 6.7 6.3 6.3 5.3 5.7 5.7 5.7 6.0 4.0 3.7 5.0 PIRANHA (DC-1) 5.3 5.0 4.7 5.7 5.3 5.3 6.0 6.0 5.7 5.3 5.0 6.0 L-93 XD 4.7 5.3 5.0 5.0 5.7 6.7 6.3 6.3 4.7 4.0 4.0 5.0 777 (DLFPS-AP/3054) 5.3 5.7 5.0 5.3 5.3 5.7 6.3 6.3 5.0 4.7 5.3 6.3 BARRACUDA 5.3 6.0 5.3 5.7 6.3 5.7 5.0 5.0 4.7 4.3 4.7 5.7 DLFPS-AP/3056 6.3 5.0 5.3 6.7 6.0 6.3 5.3 5.3 5.3 5.0 4.7 4.7 KINGDOM 5.3 6.3 5.7 7.7 6.7 6.7 5.3 5.3 5.7 5.3 5.0 4.7 PURE SELECT 5.7 5.3 5.3 5.0 5.0 4.7 5.3 5.3 5.3 3.0 3.7 4.7 DLFPS-AP/3058 5.3 5.0 5.0 5.3 5.3 5.7 4.7 4.7 4.7 4.0 4.0 4.7 LUMINARY 5.0 5.0 5.3 4.7 5.0 5.7 5.7 5.7 4.7 4.0 5.0 5.3 NIGHTLIFE 5.3 6.0 6.7 7.3 6.7 5.7 5.7 5.7 5.3 4.7 4.7 4.7 DLFPS-AP/3059 5.3 6.0 6.0 6.3 5.3 5.3 5.0 5.0 5.0 4.3 4.0 4.7 SHARK 5.0 4.7 5.3 4.7 5.3 5.7 4.3 4.3 5.0 3.3 4.0 5.7 V-8 5.3 5.0 4.3 5.7 5.7 6.3 4.3 4.3 5.0 3.7 4.0 4.3 ARMOR 5.0 5.0 4.7 5.3 5.7 5.3 6.0 6.0 5.7 4.7 4.3 5.0 DECLARATION 5.0 4.7 4.7 5.3 4.3 5.0 5.0 5.0 4.3 3.7 3.3 4.3 PENN A-1 5.0 5.0 5.0 6.0 5.7 6.0 5.0 5.0 4.3 4.0 3.3 4.3 PENNCROSS 3.7 3.7 4.0 3.7 3.7 4.0 3.3 3.3 3.0 2.7 3.7 4.0 LSD VALUE 0.9 1.0 1.4 0.8 0.8 1.0 1.1 1.1 1.0 1.0 1.0 0.8 C.V. (%) 9.8 11.0 13.7 9.2 9.3 9.9 12.4 12.4 11.8 14.6 13.3 9.3 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.