TABLE 10. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 1997 USGA/GCSAA/NTEP ON-SITE BENTGRASS TEST AT RYE, NY (WESTCHESTER COUNTRY CLUB) 1/ 1998 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC LEAF SEEDLING DENSITY RATINGS DOLLAR QUALITY RATINGS NAME COLOR GREENUP TEXTURE VIGOR SPRING SUMMER FALL SPOT APR MAY JUN JUL AUG SEP NOV MEAN PENN A-4 7.0 7.3 9.0 7.3 7.7 9.0 6.0 7.3 7.7 8.7 9.0 8.0 7.7 5.7 8.3 7.9 CENTURY 4.0 4.7 8.7 7.0 6.3 8.0 6.3 5.7 6.0 8.0 8.0 7.7 7.3 6.0 6.7 7.1 PENN A-1 6.7 5.0 8.0 4.0 5.3 8.0 5.0 8.0 6.7 8.0 8.0 7.7 7.0 5.3 6.7 7.0 PENN G-1 6.3 5.7 7.7 7.0 6.7 7.7 5.7 8.0 7.0 8.0 7.7 7.3 6.7 5.7 6.7 7.0 SR 1119 7.3 4.3 6.7 5.0 6.0 7.0 4.3 8.3 7.0 9.0 8.0 6.3 5.7 5.0 5.7 6.7 L-93 7.0 4.3 6.3 5.0 5.3 6.7 5.0 8.7 5.7 8.0 7.0 6.7 6.7 5.3 7.0 6.6 GRAND PRIX (LCB-103) 3.7 5.3 7.3 8.0 5.3 7.0 5.0 7.7 6.0 6.7 7.0 7.0 6.3 5.0 5.7 6.2 CRENSHAW 6.0 3.7 6.0 6.3 5.0 6.3 4.7 7.0 5.7 8.0 6.7 6.0 6.0 5.0 5.3 6.1 PENN G-6 5.7 5.7 6.7 6.7 7.0 7.0 5.0 8.0 6.3 7.7 6.7 6.0 6.3 4.7 5.3 6.1 BACKSPIN 2.7 3.7 7.7 5.3 4.7 7.3 5.3 6.3 5.0 7.3 7.3 7.3 5.7 4.3 4.7 6.0 IMPERIAL 3.7 3.7 8.0 7.7 6.0 7.3 4.0 6.3 5.7 7.0 7.3 6.3 5.7 4.3 4.7 5.9 CATO 6.7 3.0 6.7 4.7 5.0 6.7 3.7 7.7 4.3 7.7 7.0 6.3 5.0 4.3 5.3 5.7 PROVIDENCE 5.7 4.3 5.7 6.7 5.0 6.0 4.0 8.7 6.3 7.3 6.0 6.0 4.7 4.0 5.0 5.6 SR 1020 5.0 3.3 6.7 4.3 4.7 6.7 4.7 7.7 4.7 6.7 6.3 6.0 5.0 5.0 5.7 5.6 VIPER 6.3 3.0 6.0 6.7 7.0 6.3 3.3 8.0 6.7 7.7 6.0 5.0 4.0 3.7 4.3 5.3 TRUELINE 5.0 4.7 5.7 8.0 5.0 5.7 3.3 7.7 6.3 6.7 5.3 5.0 4.0 4.0 4.0 5.0 PUTTER 4.7 2.7 5.0 7.3 3.3 5.0 2.7 8.3 4.7 5.3 5.0 4.3 3.7 3.0 4.0 4.3 PENNCROSS 2.0 3.0 3.0 6.3 2.3 4.0 1.0 8.7 3.3 5.7 3.3 3.3 2.0 2.0 2.0 3.1 LSD VALUE 1.0 1.9 0.9 1.7 1.4 0.9 1.1 0.9 1.0 1.2 0.9 1.0 0.7 1.0 0.9 0.5 C.V. (%) 11.9 24.7 8.4 15.9 16.3 8.7 16.1 7.0 11.3 9.8 8.5 10.3 9.0 14.1 10.9 5.5 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). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN.