TABLE 2B. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 1997 USGA/GCSAA/NTEP ON-SITE BENTGRASS TEST AT GREEN VALLEY, AZ (COUNTRY CLUB OF GREEN VALLEY) 1/ 1999 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ TURFGRASS STIMPMETER READINGS MEASURED IN INCHES G G T D D E R E ES ES NC E X NP NU N EO E LT SR SM A TL N EU II IM PERCENT LIVING M IO U AR TN TE GROUND COVER STIMPMETER READINGS QUALITY RATINGS E CR P FE YG YR SPR SUM FALL JAN MAR MAY AUG JAN FEB MAR APR MAY JUN JUL AUG MEAN PENN A-4 6.0 6.0 8.3 8.0 8.3 99 99 81.7 73.0 78.3 82.3 90.3 7.0 7.7 8.0 7.0 6.0 8.3 6.0 4.3 6.8 IMPERIAL 5.0 6.0 7.7 7.7 7.7 99 99 92.3 75.7 78.7 80.0 84.0 7.0 7.3 7.0 6.0 5.0 7.7 5.7 4.0 6.2 PENN A-1 6.0 6.0 7.3 7.0 7.3 99 99 68.3 71.3 75.3 81.7 91.0 6.3 6.7 6.7 5.7 5.3 7.7 6.3 4.3 6.1 CENTURY 4.7 5.0 8.3 7.0 8.0 99 99 58.3 81.3 81.7 85.7 92.0 8.0 6.0 6.7 5.7 5.0 7.3 5.7 4.0 6.0 GRAND PRIX (LCB-103) 5.3 5.3 7.0 7.3 7.3 99 99 93.0 71.3 73.3 79.3 88.7 7.3 6.7 6.7 5.7 4.7 7.0 5.3 3.7 5.9 L-93 6.7 7.0 6.7 7.3 7.0 99 99 76.7 77.0 76.0 82.3 88.3 7.3 6.3 6.7 5.7 4.7 7.0 5.3 4.0 5.9 PENN G-1 6.0 6.0 7.0 7.0 7.7 99 99 91.7 72.7 73.7 80.3 87.7 6.7 6.0 6.3 5.3 5.0 7.3 6.3 4.3 5.9 BACKSPIN 5.7 6.0 7.3 7.0 7.3 99 99 80.0 69.0 75.0 78.7 81.0 6.7 6.0 6.7 5.7 5.0 7.3 5.0 3.7 5.8 PENN G-6 6.0 6.0 6.7 7.0 7.3 99 99 75.0 74.7 80.7 89.3 91.0 6.3 6.7 6.7 5.3 4.7 6.7 5.7 4.0 5.8 PROVIDENCE 6.0 6.0 6.0 7.3 7.0 99 99 85.0 70.3 76.3 82.7 83.0 7.0 6.0 6.7 5.3 4.7 6.7 5.7 4.0 5.8 SR 1119 6.7 7.0 7.7 7.0 7.0 99 99 74.7 71.0 74.0 80.3 78.0 5.7 6.0 7.0 6.0 5.3 7.7 5.0 4.0 5.8 SR 1020 6.0 6.0 7.7 7.7 7.3 99 99 73.3 79.3 83.3 86.7 91.3 7.7 7.0 7.0 5.3 4.3 6.3 4.0 3.0 5.6 CRENSHAW 7.0 7.0 6.7 6.0 6.7 99 99 87.3 70.3 75.3 83.0 84.0 5.3 6.0 6.0 5.0 4.3 6.3 5.7 4.0 5.3 TRUELINE 6.7 6.0 6.3 6.3 6.3 99 99 96.3 70.7 77.3 81.7 87.0 5.7 6.0 6.3 5.0 4.3 6.7 4.7 3.7 5.3 CATO 6.0 6.0 7.0 6.3 6.3 99 99 86.7 76.3 82.3 92.7 94.0 5.3 6.0 6.0 4.7 4.3 6.3 5.0 4.0 5.2 VIPER 7.3 6.7 6.7 6.3 6.3 99 99 88.0 72.0 80.3 81.3 87.0 5.7 6.0 6.7 5.3 4.3 6.3 4.0 3.0 5.2 PENNCROSS 4.7 5.7 5.3 7.0 5.3 99 99 96.7 63.7 67.3 78.3 81.7 7.3 5.7 5.0 4.0 3.3 5.3 3.3 2.7 4.6 PUTTER 5.3 5.7 6.0 6.3 5.7 99 99 84.7 67.3 66.3 85.7 80.7 6.0 5.0 5.3 4.0 3.3 5.0 4.3 3.0 4.5 LSD VALUE 0.6 0.4 0.9 1.4 0.7 - - 41.7 11.1 10.4 20.5 17.7 2.0 1.1 1.0 1.0 0.9 1.6 1.7 1.2 0.5 C.V. (%) 6.9 4.5 7.9 9.3 6.6 0 0 19.0 7.1 6.8 8.2 7.9 14.4 9.6 8.8 10.6 11.0 12.4 17.1 15.6 5.9 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.