TABLE 12. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 1998 NATIONAL BENTGRASS (FAIRWAY) TEST AT BROOKINGS, SD 1/ 2001 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC DENSITY DENSITY COVER TYPHULA QUALITY RATINGS NAME COLOR SPRING SUMMER SPRING BLIGHT APR MAY JUN JUL AUG SEP OCT NOV MEAN GOLFSTAR 8.0 7.3 6.3 96.0 8.0 7.0 7.3 8.3 6.3 7.3 7.7 7.3 4.3 7.0 GLORY (PST-9HG) 6.0 7.3 6.7 96.3 7.7 5.3 7.7 8.0 6.7 7.0 7.3 6.7 5.7 6.8 SR 7100 6.3 7.3 6.7 96.3 8.0 6.0 7.7 7.7 6.7 7.0 7.3 6.7 3.7 6.6 PST-9PM 7.0 7.0 6.0 96.3 7.7 5.3 6.7 7.7 6.3 6.3 7.0 7.3 5.0 6.5 TIGER 6.3 7.3 6.3 99.0 8.0 6.0 7.7 8.0 6.3 6.3 6.7 6.3 4.7 6.5 TIGER II (CIS AT-5) 6.0 7.7 6.7 95.0 8.0 5.3 6.3 7.0 6.7 7.3 7.3 7.0 4.3 6.4 SRX 7MODD 7.0 7.7 7.0 97.7 7.7 5.3 7.0 7.7 6.7 6.7 7.3 6.7 4.0 6.4 SRX 7MOBB 6.0 8.0 6.3 95.0 7.3 5.3 6.3 7.0 7.0 6.3 7.3 6.7 4.0 6.3 ABT-COL-2 6.0 7.0 6.3 86.7 7.3 4.3 5.7 6.3 5.3 6.3 6.7 6.7 5.3 5.8 CENTURY 5.7 5.7 5.3 66.7 3.3 2.3 3.7 4.3 5.7 7.0 7.3 7.7 6.0 5.5 BRIGHTON (SRX 1120) 5.3 5.0 4.7 53.3 2.7 2.0 3.3 3.7 5.3 7.3 7.3 7.3 7.0 5.4 SEASIDE 3.7 3.0 4.0 80.0 5.3 3.3 4.0 5.7 5.3 5.0 5.7 7.0 7.3 5.4 PRINCEVILLE 5.0 4.7 5.3 80.0 4.3 3.0 4.3 5.3 5.0 5.3 5.7 6.7 6.7 5.3 BACKSPIN 4.7 5.7 5.3 78.3 4.3 2.7 4.0 4.7 6.0 6.0 6.3 6.3 5.7 5.2 IMPERIAL 5.0 5.7 5.3 65.0 3.7 2.3 3.7 4.0 5.7 6.7 6.7 6.7 6.0 5.2 SRX 1BPAA 4.7 5.3 4.3 65.0 3.3 2.3 4.0 4.3 5.7 6.0 6.3 6.7 6.3 5.2 TRUELINE 5.3 5.3 4.7 66.7 3.7 2.7 4.0 4.3 5.7 6.3 6.7 7.0 5.0 5.2 GRAND PRIX 5.0 5.7 4.7 50.0 2.7 2.0 3.0 3.7 6.0 6.3 6.7 7.0 6.3 5.1 PENNCROSS 5.7 5.0 5.0 73.3 4.0 2.7 4.0 4.3 5.0 6.0 6.0 6.0 6.3 5.0 SR 1119 4.7 5.7 4.7 71.7 5.0 2.7 4.0 4.3 5.0 6.0 6.0 6.3 6.0 5.0 PENN G-6 5.0 5.0 4.7 66.7 3.0 2.3 3.7 4.3 6.3 5.3 6.0 5.7 5.3 4.9 PENNEAGLE 5.0 4.7 4.3 75.0 4.3 2.7 4.0 4.7 5.3 5.3 5.7 6.0 5.7 4.9 L-93 5.0 5.3 4.7 55.0 2.0 2.0 3.3 3.7 5.3 5.3 6.0 6.3 4.7 4.6 SEASIDE II 4.7 5.3 5.0 58.3 2.7 2.3 3.7 4.0 6.0 4.7 5.7 5.7 5.0 4.6 PST-0VN 5.3 6.0 5.0 45.0 1.0 2.0 2.7 3.0 4.7 5.3 5.7 6.3 6.3 4.5 PROVIDENCE 5.0 5.3 5.3 63.3 2.3 2.7 3.3 4.3 5.0 4.7 5.0 5.0 5.0 4.4 LSD VALUE 0.6 1.1 0.9 14.1 1.9 0.9 0.9 1.1 1.4 1.9 1.1 1.2 1.0 0.6 C.V. (%) 7.8 11.5 10.2 12.1 24.8 16.8 12.2 14.1 12.5 15.1 9.6 9.6 12.1 6.8 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 SD1 SILTY CLAY LOAM 7.6-8.5 0-60 241-375 4.1-5.0 FULL SUN 0.6-1.0 TO PREVENT STRESS