TABLE 4. MEAN TURFGRASS QUALITY RATINGS OF BENTGRASS CULTIVARS GROWN ON A MODIFIED SOIL GREEN FOR EACH YEAR IN THE U.S. 1990-1993 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF 1/ NAME 1990 1991 1992 1993 1990-93 MEAN MEAN MEAN MEAN MEAN REGENT (NORMARC 101) 6.11 6.01 6.45 6.19 6.29 PROVIDENCE 5.73 6.33 6.98 6.61 6.27 SR 1020 5.87 6.10 6.51 6.24 6.19 PUTTER 5.79 6.17 6.64 6.15 6.13 88.CBE 5.77 5.90 6.46 6.28 6.12 VIPER (88.CBL) 5.55 6.12 6.57 6.25 6.03 PENNLINKS 5.65 6.09 6.31 6.06 6.02 COBRA 5.47 5.92 6.46 6.25 5.99 LOPEZ (WVPB 89-D-15) 5.57 6.11 6.22 5.75 5.96 PRO/CUP (FORBES 89-12) 5.35 6.08 6.40 6.06 5.95 PENNCROSS 5.72 5.78 6.27 5.80 5.90 TAMU 88-1 5.44 5.65 6.11 5.95 5.81 MSCB-8 5.44 5.95 6.10 5.61 5.76 18TH GREEN (UM 84-01) 5.31 5.63 5.90 5.87 5.75 CARMEN 5.28 5.66 6.07 5.69 5.70 MSCB-6 5.19 5.62 6.20 5.67 5.61 NATIONAL 4.88 5.56 5.87 5.27 5.42 EMERALD 5.13 5.42 5.63 5.25 5.25 BARDOT 4.65 5.01 5.30 4.83 4.95 EGMONT 4.53 5.29 5.11 4.58 4.86 TRACENTA 4.35 4.80 5.27 4.88 4.85 ALLURE 4.04 4.69 5.05 4.72 4.65 BR 1518 3.62 4.25 4.82 4.85 4.45 LSD VALUE 0.45 0.30 0.24 0.24 0.22 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).