TABLE 15. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 1998 NATIONAL BENTGRASS (FAIRWAY) TEST AT PULLMAN, WA 1/ 2001 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC SPRING DENSITY DENSITY DENSITY PINK SNOW QUALITY RATINGS NAME COLOR GREENUP SPRING SUMMER FALL MOLD APR MAY JUN JUL AUG SEP OCT MEAN PST-0VN 7.3 5.7 8.0 8.0 8.0 5.0 5.3 5.7 6.3 8.0 7.7 7.7 7.3 6.9 GRAND PRIX 7.0 6.0 8.7 8.7 7.7 5.0 5.0 6.0 6.3 7.7 7.7 7.7 7.3 6.8 SRX 1BPAA 7.0 6.0 8.7 8.7 8.0 3.7 4.7 5.0 6.3 7.0 7.7 7.7 7.7 6.6 L-93 7.3 5.7 8.0 8.0 7.3 6.0 5.3 5.7 5.7 7.3 7.7 7.0 7.0 6.5 PENN G-6 7.0 6.0 8.0 8.0 7.7 4.3 5.3 6.0 6.7 7.0 7.0 7.0 6.7 6.5 CENTURY 7.0 5.7 8.7 8.7 8.0 4.0 4.3 5.0 5.0 7.7 8.0 7.7 7.0 6.4 SR 1119 6.7 6.0 7.7 7.7 7.0 6.0 5.3 5.7 6.3 7.7 7.3 6.7 6.0 6.4 IMPERIAL 7.0 5.7 8.3 8.3 8.0 5.3 4.7 5.7 6.0 7.3 7.0 6.7 6.7 6.3 PENNCROSS 7.0 6.3 8.0 8.0 7.3 4.7 5.0 5.3 6.3 7.0 7.3 7.0 6.3 6.3 SRX 7MODD 9.0 6.0 7.3 7.3 7.7 5.0 6.0 5.3 5.7 7.7 6.3 7.3 6.0 6.3 TIGER II (CIS AT-5) 8.0 6.7 8.0 8.0 7.7 6.3 6.0 5.0 6.3 8.0 5.7 6.3 6.0 6.2 PRINCEVILLE 6.7 6.0 7.3 7.3 6.7 2.7 4.3 6.0 6.7 7.0 7.3 6.3 6.0 6.2 BACKSPIN 6.3 6.0 8.0 8.0 7.0 6.0 4.7 6.0 5.7 6.0 7.0 7.0 6.7 6.1 BRIGHTON (SRX 1120) 7.0 6.0 7.3 7.3 7.3 4.0 4.7 5.0 5.0 6.7 7.0 6.7 6.7 6.0 PROVIDENCE 6.7 6.0 7.7 7.7 7.7 3.7 4.3 5.7 5.7 6.7 7.0 6.3 6.7 6.0 GLORY (PST-9HG) 8.0 7.0 7.3 7.3 7.0 6.7 6.0 5.3 5.7 7.0 5.7 6.3 6.0 6.0 SEASIDE II 7.0 5.3 7.3 7.3 7.3 2.3 4.0 5.0 6.0 7.3 6.3 6.0 7.0 6.0 TRUELINE 7.0 6.3 7.3 7.3 7.3 5.0 5.0 5.0 5.7 6.7 6.0 6.7 7.0 6.0 PENNEAGLE 6.0 6.0 7.3 7.3 6.7 2.7 5.0 5.7 5.3 6.3 6.3 6.3 5.7 5.8 TIGER 8.3 6.7 7.0 7.0 7.0 6.7 6.0 5.7 6.0 6.3 5.0 5.7 6.0 5.8 GOLFSTAR 8.0 6.7 6.7 6.7 7.0 3.7 5.7 4.3 5.0 5.7 5.3 7.0 5.3 5.5 SRX 7MOBB 8.0 5.7 7.3 7.3 7.3 6.3 5.3 5.7 6.0 6.7 4.7 5.7 4.7 5.5 PST-9PM 8.0 6.0 7.0 7.0 6.7 3.0 5.0 5.0 5.0 6.0 4.7 5.7 5.3 5.2 SR 7100 8.0 7.3 7.7 7.7 8.0 3.7 5.7 4.7 5.3 6.3 4.3 5.0 5.3 5.2 ABT-COL-2 7.3 5.7 8.0 8.0 7.3 5.7 4.7 5.3 4.7 6.3 4.3 5.0 5.7 5.1 SEASIDE 6.0 5.0 5.3 5.3 5.0 2.0 3.7 3.3 3.3 5.0 4.7 5.0 4.3 4.2 LSD VALUE 0.6 3.5 1.0 1.0 1.0 3.1 2.3 2.0 1.2 1.2 1.3 1.1 1.3 0.7 C.V. (%) 5.7 16.5 8.1 8.1 7.7 33.9 17.9 15.4 12.2 9.8 12.9 10.5 11.8 7.6 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 A. 2001 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 1998 NATIONAL BENTGRASS (FAIRWAY/TEE) TEST SOIL SOIL SUN MOWING SOIL SOIL PHOSPHOROUS POTASSIUM NITROGEN OR HEIGHT IRRIGATION LOCATION TEXTURE PH (LBS/ACRE) (LBS/ACRE) (LBS/1000 SQ FT) SHADE (IN) PRACTICED WA1 SILT LOAM AND SILT 5.6-6.0 271-450 501+ 3.1-4.0 FULL SUN 0.0-0.5 TO PREVENT STRESS