TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF BENTGRASS CULTIVARS FOR EACH MONTH GROWN ON A NATIVE SOIL GREEN AT ELEVEN LOCATIONS IN THE U.S. 1993 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF: MONTHS 1/ NAME JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN PROVIDENCE 4.8 5.2 5.8 5.8 6.4 6.4 6.7 5.8 6.9 6.7 6.2 5.3 6.2 PRO/CUP (FORBES 89-12) 5.0 5.5 6.2 6.1 5.9 6.2 6.8 6.4 6.4 6.3 5.5 5.3 6.2 LOPEZ (WVPB 89-D-15) 4.8 4.5 5.7 5.8 5.7 6.2 6.6 6.3 6.5 6.5 5.6 4.3 6.1 PUTTER 5.5 5.7 5.8 5.8 6.0 6.5 6.6 6.0 6.2 6.2 5.3 5.0 6.1 PENNLINKS 5.8 6.0 6.5 5.6 5.9 6.1 6.6 6.4 6.4 6.3 5.9 6.0 6.1 REGENT (NORMARC 101) 5.8 5.5 5.5 6.0 5.7 6.0 6.5 6.3 6.2 6.5 5.6 5.0 6.1 VIPER (88.CBL) 6.0 6.2 6.3 5.9 5.8 6.1 6.5 5.3 6.6 6.5 6.3 5.7 6.1 COBRA 5.5 5.8 5.8 5.7 5.8 5.8 6.6 5.7 6.3 6.4 6.0 6.0 6.0 88.CBE 5.8 5.3 6.0 5.8 5.7 5.7 6.3 5.7 6.3 6.4 5.6 5.3 5.9 SR 1020 6.5 6.0 6.7 5.6 5.5 5.8 6.5 5.5 6.1 6.1 5.8 5.0 5.9 PENNCROSS 5.5 5.2 5.0 5.3 5.6 5.6 6.3 6.2 5.8 6.4 5.1 5.0 5.8 CARMEN 5.2 5.0 6.2 5.2 5.4 5.8 6.1 5.7 6.1 5.9 5.1 4.7 5.6 NATIONAL 4.7 5.2 4.3 4.8 4.7 5.0 5.3 5.0 5.4 5.7 4.6 3.7 5.0 EMERALD 4.8 4.8 4.8 4.6 4.5 4.7 5.3 5.0 5.0 5.6 4.5 4.7 4.9 BARDOT 3.5 3.3 4.5 4.2 4.5 4.3 4.4 4.8 4.7 4.8 4.4 3.7 4.3 EGMONT 4.2 4.0 3.7 3.9 4.5 4.1 4.6 4.9 4.7 4.9 4.5 4.0 4.3 TRACENTA 3.8 3.0 3.2 4.6 4.1 4.0 3.9 4.1 4.5 4.5 4.3 4.0 4.2 ALLURE 4.3 3.7 3.3 4.0 3.8 3.6 3.8 4.1 4.4 4.4 4.0 3.7 3.9 BR 1518 3.0 2.3 3.0 3.3 3.6 3.7 3.6 4.1 4.1 4.5 4.3 3.0 3.7 LSD VALUE 1.4 0.9 0.9 0.6 0.6 0.7 0.7 1.1 0.8 0.7 0.8 1.3 0.5 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).