TABLE 16. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 2003 NATIONAL BENTGRASS (GREENS) TEST AT STILLWATER, OK 1/ 2007 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT PERCENT SPRING DENSITY COVER COVER WINTER QUALITY RATINGS NAME GREENUP SUMMER SPRING SUMMER COLOR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN AUTHORITY (235050) 5.7 7.7 95.7 95.0 4.0 5.3 6.0 5.7 5.0 5.3 6.3 5.7 5.0 5.0 5.5 CY-2 5.3 7.3 95.3 95.7 5.0 6.0 5.7 4.7 5.0 5.3 5.7 6.0 5.3 5.3 5.4 TYEE (SRX 1GD) 4.3 6.7 97.0 97.0 3.7 5.3 5.7 5.0 5.0 5.7 5.7 5.7 5.0 5.0 5.3 MACKENZIE (SRX 1GPD) 5.3 6.0 93.3 97.0 4.0 5.3 5.7 5.3 5.0 5.3 4.7 5.3 5.0 5.0 5.2 DECLARATION 5.7 6.0 95.7 94.0 4.0 5.3 6.0 4.7 4.3 4.7 5.3 5.7 5.0 5.0 5.1 007 (DSB) 5.7 6.0 93.3 93.0 3.7 5.3 5.7 5.0 4.0 5.0 5.7 5.0 4.7 5.0 5.0 PENN A-1 6.3 6.0 96.3 93.3 3.3 5.0 6.0 5.3 4.3 4.7 5.3 4.7 4.3 5.0 5.0 SHARK (23R) 5.3 7.0 94.7 94.0 4.0 4.7 5.0 4.7 5.0 5.0 6.0 5.3 4.3 4.7 5.0 13-M 6.7 6.0 95.7 94.0 3.7 5.0 6.0 4.7 4.0 5.0 5.0 5.0 4.3 4.7 4.9 KINGPIN (9200) 6.3 6.3 94.3 91.3 3.7 5.0 5.0 4.0 4.0 5.3 5.3 5.3 4.7 5.0 4.9 BENGAL 5.3 7.0 94.0 94.0 4.0 5.0 5.0 4.7 4.3 4.7 5.3 5.0 4.3 4.7 4.8 LS-44 5.3 6.7 92.3 93.3 3.0 4.7 5.7 4.7 4.0 4.3 5.3 5.0 4.0 4.7 4.7 BENCHMARK DSR 7.3 5.7 91.7 91.7 3.0 5.3 5.0 4.0 4.3 5.0 4.3 4.7 4.0 4.7 4.6 INDEPENDENCE 5.7 5.7 88.0 93.0 3.0 4.7 4.7 4.0 4.7 4.7 5.3 4.7 4.3 4.7 4.6 MEMORIAL (A03-EDI) 6.7 6.3 93.0 91.3 3.7 5.0 5.0 4.0 4.0 4.3 5.3 4.7 3.7 4.7 4.5 ALPHA 5.7 4.7 93.0 94.0 3.3 5.0 5.0 4.0 4.0 4.3 4.7 4.3 4.0 4.0 4.4 COBRA 2 (IS-AP 9) 7.0 5.3 92.3 93.3 3.0 4.0 5.0 4.3 4.0 4.3 5.3 4.3 3.7 4.0 4.3 T-1 5.3 5.3 89.0 90.7 3.0 4.3 4.7 4.0 4.0 4.3 4.3 4.3 4.0 4.0 4.2 PENNLINKS II 4.3 5.3 90.7 91.3 3.0 4.0 4.0 4.0 4.0 4.3 5.3 4.3 3.3 3.7 4.1 PENNCROSS 5.7 4.0 90.0 90.7 3.0 4.0 4.0 3.7 4.0 4.0 4.0 4.0 3.3 3.3 3.8 GREENWICH 7.0 2.0 11.7 30.0 2.3 2.0 2.0 2.7 2.3 2.0 2.0 2.0 2.0 2.0 2.1 LEGENDARY 6.0 2.0 8.3 20.0 2.7 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 SR 7200 6.7 2.0 6.7 16.7 2.3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.7 2.0 VESPER 7.3 2.0 5.0 11.7 2.7 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 VILLA (IS-AC 1) 6.7 2.3 9.3 31.7 3.0 2.0 2.0 2.0 2.3 2.0 2.0 2.0 2.0 2.0 2.0 VENUS (EFD) 6.7 2.0 5.0 15.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.3 1.7 1.9 LSD VALUE 1.8 1.1 3.4 8.2 0.7 0.7 0.7 0.8 0.4 0.7 0.7 0.9 0.7 0.6 0.3 C.V. (%) 15.2 14.8 3.2 7.4 12.8 10.6 10.5 13.1 7.8 10.6 10.8 13.6 13.2 9.9 5.1 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. 2007 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2003 NATIONAL BENTGRASS (GREEN) 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 SAND 7.1-7.5 61-150 0-150 4.1-5.0 FULL SUN 0.0-0.5 TO PREVENT STRESS