TABLE 15. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 1998 NATIONAL BENTGRASS (GREENS) TEST AT STILLWATER, OK 1/ 2001 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT PERCENT PERCENT BROWN DOLLAR DOLLAR GENETIC SPRING LEAF DENSITY COVER COVER COVER WINTER PATCH SPOT SPOT NAME COLOR GREENUP TEXTURE SPRING SPRING SUMMER FALL COLOR (C.TEMP.) APRIL MAY PENN A-1 8.3 6.0 7.7 8.0 98.7 97.0 97.3 3.0 9.0 8.0 7.7 L-93 7.3 6.3 7.0 7.3 98.0 96.0 96.3 3.0 9.0 8.3 8.0 PENN A-2 8.0 6.0 7.0 7.7 97.3 96.3 96.7 3.3 9.0 8.0 8.0 PENN G-1 7.7 5.3 7.3 8.0 98.3 96.3 97.3 3.0 8.3 8.0 7.7 SRX 1NJH 7.0 5.7 7.0 7.0 98.0 96.3 97.0 3.0 9.0 8.0 7.7 BRIGHTON (SRX 1120) 7.7 7.0 7.0 7.7 98.0 95.7 96.3 3.0 8.7 6.7 6.3 ISI AP-5 7.0 6.7 7.0 7.7 98.3 96.3 97.0 3.0 9.0 6.7 6.7 PENN A-4 7.3 6.3 7.3 8.0 98.0 95.7 96.3 3.0 8.0 7.0 6.7 PENN G-6 7.3 7.0 7.3 7.3 98.3 96.0 96.7 3.0 9.0 7.7 7.0 BENGAL (BAR AS 8FUS2) 7.3 7.0 7.0 7.3 97.0 96.0 96.7 3.0 9.0 7.0 6.3 SR 1119 7.3 5.3 7.0 7.0 97.0 95.0 96.3 2.7 9.0 6.7 6.7 SRX 1BPAA 7.0 6.3 7.0 7.0 97.0 94.3 95.7 3.0 8.7 7.3 7.3 SYN 96-3 7.3 6.3 8.0 7.7 94.3 95.0 95.3 3.7 9.0 5.0 5.3 PICK CB 13-94 7.0 6.3 7.0 7.3 98.0 95.0 96.0 3.0 9.0 6.7 7.3 PROVIDENCE 7.3 6.7 7.0 7.3 93.3 94.0 95.0 3.0 9.0 5.7 6.0 ABT-CRB-1 7.0 6.3 7.0 7.3 97.7 97.3 98.0 3.7 9.0 8.3 7.3 PST-A2E 7.3 6.3 7.0 7.7 98.3 95.7 96.7 3.3 9.0 7.7 7.7 SYN 96-1 7.7 7.0 8.0 8.0 94.3 95.3 95.3 3.0 9.0 4.3 5.0 BAR CB 8US3 7.0 6.3 7.0 7.0 91.7 94.7 95.3 3.0 9.0 4.7 3.7 BACKSPIN 7.0 6.7 7.0 7.0 93.3 95.3 95.7 3.3 8.3 5.0 4.7 IMPERIAL 7.7 6.3 7.0 7.7 91.0 93.7 95.3 3.3 7.7 4.0 4.0 PENNCROSS 7.0 7.0 6.3 7.0 97.0 95.7 96.0 3.3 9.0 7.7 7.0 CENTURY 7.7 6.3 7.0 7.0 81.7 86.7 88.3 3.0 8.7 3.3 2.0 SYN 96-2 8.0 6.3 8.0 8.0 85.0 88.3 88.3 3.0 9.0 3.3 2.3 PENNLINKS 7.0 6.0 6.3 6.3 97.0 93.7 96.3 3.3 9.0 8.0 7.7 CRENSHAW 6.7 6.3 7.0 7.0 81.7 88.7 90.3 3.0 9.0 3.0 2.0 SR 7200 7.7 6.7 9.0 8.3 70.0 66.7 68.7 3.0 9.0 6.7 7.3 VESPER (PICK MVB) 8.7 5.3 9.0 8.3 65.0 65.0 63.3 3.0 9.0 6.3 6.7 BAVARIA 7.0 6.0 9.0 8.0 5.0 7.5 7.5 3.0 9.0 7.0 6.0 LSD VALUE 0.9 3.5 0.4 0.9 16.9 18.1 17.8 0.8 1.6 1.1 1.4 C.V. (%) 6.5 15.1 3.5 6.5 11.7 12.3 12.1 9.9 6.1 11.0 15.1 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 15. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE (CONT'D) 1998 NATIONAL BENTGRASS (GREENS) TEST AT STILLWATER, OK 1/ 2001 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ QUALITY RATINGS NAME MAR APR MAY JUN JUL AUG SEP OCT NOV MEAN PENN A-1 6.0 7.3 8.3 8.0 8.0 8.0 7.0 7.3 7.3 7.5 L-93 7.0 7.7 8.0 7.0 7.0 7.0 7.0 7.3 7.3 7.3 PENN A-2 6.7 7.7 7.7 7.7 7.3 7.0 6.7 7.3 7.0 7.2 PENN G-1 6.3 7.3 7.7 7.0 7.0 7.3 6.7 7.3 7.0 7.1 SRX 1NJH 7.0 7.7 7.7 7.0 7.0 6.7 6.3 7.3 7.0 7.1 BRIGHTON (SRX 1120) 7.0 6.7 7.3 7.0 7.0 7.0 7.0 7.3 7.0 7.0 ISI AP-5 7.0 7.3 7.3 6.3 7.0 7.0 6.7 7.3 7.0 7.0 PENN A-4 6.0 7.0 7.3 7.0 7.0 7.0 7.0 7.3 7.0 7.0 PENN G-6 6.7 7.3 7.3 7.0 7.0 7.0 6.3 7.3 7.0 7.0 BENGAL (BAR AS 8FUS2) 7.0 7.3 7.0 6.3 7.0 7.0 6.3 7.0 7.0 6.9 SR 1119 6.7 7.0 7.3 6.0 7.0 7.0 6.7 7.0 7.0 6.9 SRX 1BPAA 6.7 7.0 7.3 7.0 6.7 7.0 6.3 7.0 7.0 6.9 SYN 96-3 7.0 7.0 7.0 6.3 6.7 7.0 6.7 7.3 7.3 6.9 PICK CB 13-94 6.7 7.0 7.0 6.7 6.7 6.7 6.3 7.3 7.0 6.8 PROVIDENCE 6.7 7.0 7.0 6.3 6.3 7.0 7.0 7.0 7.0 6.8 ABT-CRB-1 5.3 7.3 7.7 7.3 7.0 4.7 6.7 7.0 7.0 6.7 PST-A2E 5.3 7.0 8.0 6.7 7.0 6.7 5.7 7.0 7.0 6.7 SYN 96-1 6.7 6.7 7.3 6.0 6.3 6.7 6.7 7.0 7.0 6.7 BAR CB 8US3 6.3 6.7 6.7 6.0 6.0 7.0 6.7 7.0 6.7 6.6 BACKSPIN 6.3 6.7 7.0 5.7 6.0 7.0 6.3 6.7 6.3 6.4 IMPERIAL 7.0 6.7 6.7 6.0 6.0 5.3 6.7 7.0 6.7 6.4 PENNCROSS 7.3 7.3 7.0 6.3 5.3 5.7 5.3 6.7 6.7 6.4 CENTURY 6.3 6.7 6.0 5.3 6.0 6.7 6.7 6.7 6.3 6.3 SYN 96-2 5.7 6.0 6.3 5.3 6.3 7.3 7.0 6.7 6.3 6.3 PENNLINKS 6.7 7.0 7.0 6.3 5.0 5.7 6.0 6.3 6.0 6.2 CRENSHAW 5.3 6.0 5.3 5.0 6.0 7.0 7.0 6.7 6.3 6.1 SR 7200 3.0 4.7 5.3 3.7 3.3 5.0 4.0 5.3 4.0 4.3 VESPER (PICK MVB) 4.7 3.0 5.3 3.0 3.7 3.0 3.7 4.0 3.7 3.8 BAVARIA 1.0 2.0 1.0 1.5 1.3 3.0 1.3 1.0 1.0 1.4 LSD VALUE 1.3 1.3 0.8 0.9 1.1 2.3 1.4 1.0 0.9 0.8 C.V. (%) 13.6 12.5 8.0 9.6 11.2 19.5 14.1 9.9 9.6 8.4 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 (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 7.6-8.5 0-60 0-150 2.1-3.0 FULL SUN 1/8-5/32 TO PREVENT STRESS