TABLE 16. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 2003 NATIONAL BENTGRASS (FAIRWAY) TEST AT STILLWATER, OK 1/ 2006 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT DENSITY COVER QUALITY RATINGS NAME SUMMER SUMMER MAY JUN JUL AUG SEP OCT NOV DEC MEAN PENNEAGLE II 7.7 91.0 6.3 6.7 7.3 7.0 8.0 7.7 7.7 7.0 7.2 13-M 7.3 93.3 7.3 6.7 7.0 7.0 7.7 7.3 7.0 6.7 7.1 L-93 7.3 91.7 7.3 7.0 6.7 6.0 7.3 7.7 7.3 7.0 7.0 ALPHA 7.3 85.0 7.3 7.0 7.3 6.3 7.3 6.7 7.0 6.3 6.9 CRYSTAL BLUELINKS (PST-OEB) 7.7 92.3 6.3 7.0 7.0 7.0 7.0 7.0 7.0 6.7 6.9 KINGPIN (9200) 7.0 90.0 5.7 7.0 7.3 7.0 6.7 6.7 7.0 6.0 6.7 PRINCEVILLE 7.0 95.7 6.7 6.7 6.3 6.3 7.0 6.3 6.7 6.0 6.5 INDEPENDENCE 7.0 78.3 6.0 6.7 6.7 6.7 7.0 6.0 6.3 6.0 6.4 LS-44 7.0 78.3 6.0 6.7 6.7 6.7 6.7 6.3 6.3 6.0 6.4 MACKENZIE (SRX 1GPD) 6.7 81.7 7.0 7.0 7.0 6.7 6.3 5.7 6.0 5.7 6.4 SR 7150 6.7 90.0 6.7 6.3 6.7 6.3 6.7 6.0 6.3 6.3 6.4 BENGAL 6.3 70.0 7.3 6.7 6.7 6.0 6.7 5.7 5.7 5.7 6.3 IS-AP 14 7.0 90.0 6.7 7.3 6.3 6.0 5.7 5.7 6.7 6.3 6.3 PENNCROSS 6.3 89.0 7.0 6.0 6.3 6.0 7.3 6.0 6.0 6.0 6.3 BARDOT 7.0 80.0 7.0 6.3 7.0 5.7 6.3 5.7 6.0 5.7 6.2 DECLARATION 7.3 81.0 5.7 6.7 7.0 6.7 6.3 5.7 6.0 5.7 6.2 SR 1150 (SRX 1PDH) 7.3 73.3 5.3 6.7 6.7 6.3 6.3 6.0 6.0 6.0 6.2 PENNLINKS II 6.7 78.3 6.7 6.7 6.3 5.3 5.3 6.0 5.7 6.0 6.0 SHARK (23R) 6.7 70.0 6.3 7.0 7.0 6.0 5.3 5.0 5.7 5.3 6.0 AUTHORITY (235050) 7.0 78.3 5.3 6.0 6.3 5.7 5.7 5.7 6.0 5.3 5.8 SR 1119 6.7 83.3 5.0 6.3 6.3 5.7 6.0 5.7 5.3 5.7 5.8 TIGER II 6.0 71.7 5.7 6.3 6.3 5.7 5.3 5.7 5.7 5.7 5.8 T-1 6.7 58.3 6.0 7.0 7.0 6.0 5.0 4.7 5.0 4.7 5.7 EWTR 6.3 73.3 6.3 5.7 5.7 5.0 5.0 5.7 5.7 5.7 5.6 PST-9NBC 6.0 80.0 4.3 4.7 5.0 5.0 6.0 6.0 5.7 5.7 5.3 SEASIDE 5.7 85.0 5.0 5.3 5.3 5.3 5.3 5.0 5.3 5.3 5.3 PST-9VN 5.3 70.0 4.7 5.0 5.0 4.7 5.3 5.0 5.7 5.7 5.1 IS-AT 7 5.7 76.7 4.0 4.3 4.3 5.3 5.3 5.0 5.3 5.3 4.9 LSD VALUE 1.2 24.2 2.2 1.4 1.3 2.5 1.7 1.6 1.6 1.5 1.1 C.V. (%) 9.4 13.7 17.6 12.1 11.5 15.7 14.5 14.2 12.7 11.3 9.6 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. 2006 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2003 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 OK1 LOAM 7.1-7.5 151-270 501+ 4.1-5.0 LIGHT SHADE 0.0-0.5 TO PREVENT STRESS