TABLE 17. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BERMUDAGRASS CULTIVARS IN THE 1997 NATIONAL BERMUDAGRASS TEST AT BLACKSBURG, VA 1/ 2001 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC COVER SPRING DEAD SPOT RATINGS QUALITY RATINGS NAME COLOR SPRING APR 25 APR 29 MAY 4 MAY 11 MAY 28 JUN JUL AUG SEP MEAN RIVIERA (OKS 95-1) 8.0 91.3 3.0 3.3 3.7 4.7 6.7 5.3 5.0 7.3 6.7 6.1 BLACKJACK 7.3 70.0 2.7 3.0 3.7 3.7 6.3 5.0 5.3 6.7 6.7 5.9 TRANSCONTINENTAL (PST-R69C) 6.7 50.0 1.7 2.3 2.7 2.7 5.3 4.3 5.3 6.3 6.7 5.7 SHANGHAI 7.3 76.0 1.7 2.7 3.7 4.0 6.7 4.7 4.7 6.3 6.7 5.6 BLUE-MUDA 7.0 30.0 1.0 2.0 2.3 2.3 4.7 4.0 4.3 7.0 6.3 5.4 MIRAGE 6.0 31.7 1.3 2.0 2.3 2.7 4.3 4.3 4.3 6.3 6.3 5.3 JACKPOT 6.3 35.0 1.0 1.7 2.3 3.0 5.7 4.0 4.3 6.0 6.3 5.2 PRINCESS 77 (PRINCESS) 5.0 8.3 1.0 1.0 1.7 1.7 3.3 3.0 3.3 6.7 7.7 5.2 SHANGRI LA 6.0 28.3 1.0 2.0 2.3 2.3 4.3 4.0 4.3 6.3 6.0 5.2 J-540 6.7 43.3 1.0 2.0 2.7 2.7 5.3 3.7 4.3 6.3 6.0 5.1 SOUTHERN STAR (J-1224) 5.7 46.7 1.0 2.0 3.0 3.0 5.3 4.0 4.7 6.0 5.7 5.1 NUMEX-SAHARA 6.7 10.0 1.0 1.3 2.0 1.7 3.7 3.3 4.0 6.3 6.3 5.0 SUNDEVIL II 6.3 40.0 1.3 2.3 3.0 3.0 5.3 4.0 4.0 6.3 5.7 5.0 SYDNEY (SWI-7) 5.7 28.3 1.3 1.7 2.3 3.0 5.0 4.0 4.3 5.7 6.0 5.0 TIFSPORT (TIFT 94) 6.0 73.3 1.0 1.3 1.7 3.0 5.7 3.7 4.0 6.7 5.7 5.0 PYRAMID 6.3 25.0 1.0 2.0 2.3 3.0 4.3 3.7 3.7 6.0 6.3 4.9 MAJESTIC 5.0 11.7 1.0 1.3 2.0 2.0 3.7 3.0 3.3 6.3 6.3 4.8 SAVANNAH 6.7 28.3 1.3 2.0 2.7 2.7 5.3 3.7 4.0 5.7 5.7 4.8 TIFGREEN 7.3 91.0 2.3 3.0 3.7 4.7 7.0 5.0 5.0 5.0 4.3 4.8 TIFWAY 6.3 91.0 1.0 1.7 2.7 3.3 6.0 4.0 4.7 5.7 4.3 4.7 ARIZONA COMMON 6.0 8.3 1.0 1.3 2.3 2.0 3.3 3.3 3.7 5.3 6.0 4.6 MIDLAWN 7.7 94.3 3.0 3.7 4.0 5.3 7.7 4.3 4.0 5.0 5.0 4.6 SWI-11 4.3 21.7 1.0 1.0 2.0 2.0 3.7 2.7 3.3 6.0 6.3 4.6 OKC 18-4 7.0 92.7 3.0 3.0 3.7 5.0 7.0 4.0 4.0 5.0 5.0 4.5 OKC 19-9 7.3 92.3 3.0 3.3 4.7 6.0 7.3 4.3 3.7 5.3 4.7 4.5 CN 2-9 6.3 61.7 1.3 1.7 2.7 3.0 5.7 4.0 3.0 4.0 4.7 3.9 CARDINAL 6.7 99.0 3.0 3.7 4.7 6.0 8.0 4.0 3.3 4.0 4.0 3.8 MINI-VERDE 3.7 23.3 1.3 1.7 2.0 2.7 5.0 2.7 3.0 3.3 3.3 3.1 LSD VALUE 1.2 21.8 0.5 1.1 0.9 0.8 1.2 1.2 1.3 1.4 1.4 0.9 C.V. (%) 11.8 28.9 22.2 29.6 20.3 17.2 14.7 16.6 16.9 13.8 14.3 11.1 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. 2001 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 1997 NATIONAL BERMUDAGRASS 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 VA1 SILT LOAM AND SILT 4.6-5.5 61-150 151-240 1.1-2.0 FULL SUN 0.6-1.0 TO PREVENT STRESS