TABLE 19. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2023 NATIONAL KENTUCKY BLUEGRASS TEST AT BLACKSBURG, VA 1/ 2024 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GROUND QUALITY RATINGS NAME COVER SPRING APR MAY JUN JUL AUG SEP OCT MEAN DLF-KB-3635 94.3 7.0 6.3 5.7 6.7 7.7 7.3 7.3 6.9 DLF-KB-3636 96.0 6.7 6.3 6.3 7.3 6.3 7.0 7.3 6.8 BARSERATI 91.7 6.0 6.0 6.0 7.3 8.0 7.3 6.7 6.8 RAD 3240 90.0 6.0 5.7 6.3 7.0 7.3 7.7 7.3 6.8 BOMBAY 92.0 5.7 6.7 6.0 7.0 7.0 7.3 7.0 6.7 NAI-19-58 93.3 5.7 5.7 6.3 7.0 6.7 7.3 8.0 6.7 PVF-A17-842 93.3 6.0 6.7 6.3 7.3 7.0 6.7 6.7 6.7 DLF-KB-3633 91.7 6.0 6.7 6.7 6.3 6.7 6.3 7.3 6.6 DLF-KB-3640 92.7 6.7 6.7 6.3 7.0 6.0 7.0 6.7 6.6 A15-14 90.0 6.0 6.0 6.3 7.0 6.7 7.0 7.3 6.6 J-1249 88.3 5.3 5.7 5.3 7.7 7.0 7.3 7.7 6.6 A12-293 93.3 6.0 6.0 6.0 7.0 6.7 7.0 6.7 6.5 LIGHTNING 90.0 6.0 6.3 6.7 6.7 6.7 6.7 6.7 6.5 PST-K17-182 94.3 6.3 6.3 6.3 6.3 6.0 7.0 7.0 6.5 DLF-KB-3634 95.0 5.7 5.7 5.7 6.7 6.7 7.0 7.3 6.4 A21-3 86.7 6.0 5.7 6.0 6.3 7.0 7.3 6.7 6.4 A21-6 91.7 6.7 5.3 5.7 6.7 7.0 6.7 7.0 6.4 PPG-KB2108 83.3 5.3 6.0 6.0 7.0 6.7 7.0 7.0 6.4 KENBLUE 95.7 5.7 5.7 6.7 7.7 6.7 5.7 6.0 6.3 MIDNIGHT 81.7 5.0 5.7 5.0 6.3 7.0 7.3 7.7 6.3 PST-K19-201 90.0 6.0 6.3 6.3 6.7 6.0 6.3 6.3 6.3 PST-K22-11 90.0 7.0 6.3 5.7 7.0 6.0 6.7 5.3 6.3 STARR 84.3 6.0 5.7 5.7 6.3 6.7 7.0 6.7 6.3 A19-17 88.3 6.0 5.3 5.3 6.3 6.7 6.7 7.3 6.2 NAI-20-137 93.3 6.3 5.3 5.7 6.3 6.0 6.7 7.3 6.2 SHAMROCK 88.3 6.3 5.7 5.7 6.3 6.0 7.0 6.7 6.2 DLF-KB-3637 86.7 6.0 5.0 5.3 6.0 6.7 7.0 7.0 6.1 A12-266 86.7 5.7 5.3 5.3 6.7 6.3 7.0 6.3 6.1 A21-11 83.3 5.0 5.3 5.3 6.0 6.3 7.3 7.3 6.1 ARIES 92.7 5.7 5.7 6.0 6.0 6.0 6.7 6.7 6.1 BARON 85.0 5.3 5.3 5.7 6.7 6.7 6.7 6.3 6.1 J-1331 83.3 5.3 5.3 5.3 6.7 6.0 7.0 7.0 6.1 NAI-21-136 88.3 5.7 5.0 6.0 5.3 7.3 6.0 7.3 6.1 TABLE 19. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2023 NATIONAL KENTUCKY BLUEGRASS TEST AT BLACKSBURG, VA 1/ 2024 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GROUND QUALITY RATINGS NAME COVER SPRING APR MAY JUN JUL AUG SEP OCT MEAN PST-K19-206 91.7 6.0 5.3 6.3 6.0 5.7 6.3 7.0 6.1 PST-K19-208 85.0 5.7 5.7 6.0 6.3 6.0 7.0 6.3 6.1 RESOLUTION 93.3 5.7 5.3 6.0 6.3 6.7 6.3 6.7 6.1 DLF-KB-3639 90.0 5.7 5.0 6.0 6.3 6.0 6.7 6.7 6.0 JERSEY 86.7 5.7 5.0 5.0 6.3 6.3 6.7 7.0 6.0 A15-16 92.7 6.3 5.0 6.0 6.0 6.7 6.3 6.0 6.0 A15-17 86.7 5.3 5.3 5.0 6.3 6.3 6.7 7.0 6.0 ACOUSTIC 85.0 5.0 5.7 5.0 6.0 6.0 7.3 7.0 6.0 GO-Y301 83.3 5.7 5.7 6.0 6.3 5.7 6.3 6.3 6.0 J-2830 83.3 5.0 4.7 4.7 7.0 6.3 7.3 7.0 6.0 LTP-A21-41 89.3 6.0 5.7 5.3 6.7 5.7 6.7 6.0 6.0 RIGHT 93.3 5.7 5.7 6.0 6.0 6.0 6.3 6.3 6.0 SKYLINE 95.0 5.7 6.3 5.7 6.7 5.7 6.0 6.3 6.0 DLF-KB-3638 90.0 5.3 5.0 5.3 6.0 6.3 7.0 6.3 5.9 PROSPERITY 78.3 5.0 4.7 5.0 6.7 7.0 6.7 6.3 5.9 PST-K20-1 83.3 5.3 5.0 5.3 6.3 6.0 7.0 6.0 5.9 GO-Y312 81.7 5.0 5.3 5.7 5.7 6.3 6.7 6.0 5.8 J-2797 90.0 5.0 5.7 5.0 6.0 5.3 6.7 7.0 5.8 PST-K20-3 85.0 5.0 5.3 5.3 6.0 6.3 7.0 5.7 5.8 PST-T15-44 93.3 5.7 5.0 5.0 6.7 6.0 6.3 6.0 5.8 NAI-21-127 83.3 5.3 4.7 5.0 6.3 6.0 5.7 6.3 5.6 PPG-KB2107 85.0 5.0 5.0 5.0 6.3 6.3 6.0 5.3 5.6 PSM-231 83.3 5.0 5.3 5.3 5.7 6.0 6.0 6.0 5.6 LSD VALUE 11.7 1.1 1.0 1.1 1.7 2.2 1.3 2.1 0.7 C.V. (%) 6.1 10.1 9.7 10.3 10.4 12.0 8.6 12.2 5.7 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. 2024 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2023 NATIONAL KENTUCKY BLUEGRASS 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 6.1-6.5 61-150 151-240 2.1-3.0 FULL SUN 1.6-2.0 TO PREVENT DORMANCY