TABLE 19. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT BLACKSBURG, VA 1/ 2021 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GROUND COVER QUALITY RATINGS NAME SPRING FALL APR MAY JUN JUL AUG SEP OCT MEAN STARR (GO-2628) 99.0 99.0 8.7 9.0 8.3 7.7 7.7 7.3 8.0 8.1 CLOUD (GO-2425) 99.0 99.0 8.7 9.0 8.0 8.0 7.3 7.0 8.0 8.0 PPG-KB 1304 99.0 99.0 9.0 8.7 7.3 8.0 7.0 8.0 8.0 8.0 SKYE 99.0 99.0 9.0 8.7 7.3 7.3 7.3 7.7 8.0 7.9 BARSERATI (BAR PP 110358) 99.0 99.0 8.3 9.0 8.7 7.3 6.3 7.3 7.0 7.7 RAD-1776 99.0 99.0 8.3 8.7 8.0 7.0 7.3 6.0 7.7 7.6 BARVETTE HGT? 99.0 99.0 9.0 6.0 7.0 7.3 6.7 8.3 8.3 7.5 BLUE GEM (NAI-13-9) 99.0 99.0 7.3 7.3 8.0 7.7 7.7 6.7 8.0 7.5 ELECTRIC (PST-K11-118) 99.0 99.0 8.3 8.7 7.3 8.0 6.0 6.3 7.7 7.5 BOMBAY (GO-22B23) 99.0 99.0 8.3 8.0 7.0 7.7 6.3 6.7 8.0 7.4 SYRAH (LTP-11-41) 99.0 99.0 8.7 7.7 7.3 7.3 6.7 6.3 7.0 7.3 A16-1 99.0 99.0 9.0 8.3 7.7 6.7 6.0 5.7 7.0 7.2 BAR PP 7236V 99.0 99.0 8.7 7.0 5.7 7.3 6.3 8.3 7.0 7.2 DLFPS-340/3455 99.0 99.0 8.0 7.7 7.0 7.0 7.0 6.0 6.3 7.0 TWILIGHT (NAI-13-132) 99.0 99.0 7.3 8.0 8.0 7.0 6.3 6.0 6.0 7.0 A10-280 99.0 99.0 7.7 7.3 7.7 6.7 6.3 6.3 6.0 6.9 A13-1 99.0 99.0 8.7 7.3 7.0 6.0 5.3 6.3 7.3 6.9 A16-2 99.0 99.0 8.0 8.7 6.7 7.0 5.3 6.0 6.3 6.9 AKB3128 99.0 99.0 8.7 7.0 6.3 7.0 6.3 6.0 7.0 6.9 BABE 99.0 99.0 8.3 8.0 7.7 6.3 5.3 5.0 7.0 6.8 BLUE DEVIL 99.0 99.0 6.3 7.0 7.0 7.3 7.0 6.0 7.0 6.8 J-1138 99.0 99.0 7.0 7.7 7.0 6.3 5.3 6.3 7.3 6.7 MIDNIGHT 97.7 97.7 5.7 8.0 7.3 7.3 6.0 6.3 6.0 6.7 PPG-KB 1131 99.0 99.0 6.7 7.7 7.3 7.0 6.0 5.0 7.3 6.7 A15-6 99.0 99.0 7.7 7.7 7.7 6.0 4.3 5.7 7.0 6.6 BAR PP 79494 99.0 99.0 6.3 6.3 6.0 7.0 6.3 6.7 7.3 6.6 DLFPS-340/3549 99.0 99.0 8.0 7.3 7.7 5.0 5.3 5.7 7.0 6.6 ORION (PST-K13-143) 99.0 99.0 8.0 7.7 7.3 6.3 5.3 5.0 6.7 6.6 A11-40 99.0 99.0 7.3 6.3 7.7 6.3 6.0 5.3 6.3 6.5 DLFPS-340/3444 94.3 96.0 7.0 6.7 6.7 6.7 6.0 6.0 6.7 6.5 DLFPS-340/3548 99.0 99.0 7.3 7.3 6.3 6.0 5.3 6.3 7.0 6.5 DLFPS-340/3550 99.0 99.0 7.0 6.7 6.7 6.7 6.3 5.0 7.0 6.5 DLFPS-340/3552 99.0 99.0 6.3 6.3 7.3 6.3 6.3 6.3 6.7 6.5 DLFPS-340/3553 99.0 99.0 7.0 6.0 7.7 6.3 5.7 5.7 7.0 6.5 AKB3241 99.0 99.0 7.3 7.3 7.3 6.3 5.7 5.0 6.0 6.4 UNITED (NAI-13-14) 96.0 99.0 6.0 7.3 6.3 6.7 6.7 5.3 6.7 6.4 A11-26 99.0 99.0 7.7 6.7 7.7 5.7 5.7 5.0 6.0 6.3 BAR PP 7K426 99.0 99.0 7.7 7.7 5.0 6.3 5.3 6.0 6.3 6.3 JERSEY (NAI-A16-3) 96.0 96.0 6.7 6.0 7.7 5.3 5.7 6.0 7.0 6.3 AFTER MIDNIGHT 99.0 99.0 7.0 7.0 6.0 5.7 5.3 6.0 6.3 6.2 AMAZE (NAI-14-133) 97.7 99.0 6.0 5.7 7.0 5.7 5.7 6.3 7.3 6.2 AKB3179 96.0 97.7 6.0 7.3 7.3 6.0 4.7 5.0 6.3 6.1 PALOMA (PST-K13-139) 99.0 99.0 7.0 6.3 6.0 5.7 5.0 6.0 6.7 6.1 SELWAY 99.0 99.0 6.7 5.0 7.3 6.3 5.3 5.0 7.0 6.1 A16-17 94.3 96.0 6.3 6.7 6.3 6.0 5.7 5.0 6.0 6.0 A99-2897 99.0 99.0 6.7 7.0 5.0 6.0 4.7 5.7 7.0 6.0 DLFPS-340/3500 99.0 99.0 6.7 7.0 6.0 4.7 6.0 5.3 6.0 6.0 KH3492 99.0 99.0 7.3 6.0 7.7 5.0 4.7 5.3 6.0 6.0 PST-K15-172 94.3 96.0 5.3 5.7 7.3 5.7 5.0 6.0 6.7 6.0 SHAMROCK 99.0 99.0 6.7 7.3 6.3 6.3 5.3 5.0 5.3 6.0 TABLE 19. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT BLACKSBURG, VA 1/ 2021 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GROUND COVER QUALITY RATINGS NAME SPRING FALL APR MAY JUN JUL AUG SEP OCT MEAN BAR PP 7309V 96.0 96.0 6.7 7.3 6.3 5.3 4.3 5.0 6.0 5.9 NURUSH (J-3510) 99.0 99.0 6.0 7.3 7.0 5.7 5.3 4.5 5.3 5.9 PROSPERITY 91.0 92.7 5.3 6.0 6.0 6.3 5.3 5.7 6.3 5.9 PST-K13-141 99.0 99.0 6.7 6.3 6.0 5.7 4.7 5.3 6.7 5.9 A06-8 99.0 99.0 6.3 6.3 6.0 5.0 5.0 5.7 6.3 5.8 DLFPS-340/3446 96.0 96.0 6.7 7.0 6.0 5.3 4.7 5.3 5.7 5.8 FINISH LINE (NAI-14-178) 94.3 94.3 5.3 6.7 6.7 6.0 5.3 5.3 5.3 5.8 KENBLUE 96.0 97.7 7.0 6.0 6.0 5.0 5.0 4.7 6.7 5.8 NAI-14-122 99.0 99.0 6.7 6.3 7.3 5.0 4.3 5.0 6.0 5.8 NAI-15-80 99.0 99.0 5.7 5.0 8.3 6.0 5.3 4.3 6.0 5.8 PIVOT 96.0 99.0 6.3 7.0 6.7 5.7 5.3 4.7 5.0 5.8 DLFPS-340/3551 99.0 99.0 6.0 5.3 6.7 5.3 5.3 5.0 6.0 5.7 AVIATOR II (NAI-15-84) 99.0 99.0 6.0 6.0 6.7 5.0 5.0 5.0 5.3 5.6 BAR PP 71213 96.0 96.0 5.7 6.0 5.7 5.7 5.3 5.0 5.7 5.6 DLFPS-340/3364 93.0 94.3 4.3 5.0 6.7 4.7 5.7 6.0 7.0 5.6 DLFPS-340/3438 91.0 92.7 5.7 6.3 6.3 5.3 5.0 4.7 5.7 5.6 NAI-14-128 96.0 96.0 5.3 6.0 6.3 5.7 5.0 4.7 6.0 5.6 NK-1 99.0 99.0 6.0 4.7 6.3 5.7 5.3 5.0 6.0 5.6 YELLOWSTONE (A12-7) 96.0 97.7 6.7 6.3 5.7 4.7 4.3 5.3 6.0 5.6 A16-7 94.3 96.0 4.7 5.0 6.7 5.3 5.3 5.0 6.3 5.5 BAR PP 79366 96.0 96.0 6.0 6.3 6.7 5.3 4.0 4.7 5.7 5.5 PST-T14-39 96.0 91.3 5.7 6.0 5.7 5.3 4.3 5.7 6.0 5.5 PST-K15-167 93.0 94.7 5.0 6.0 5.7 4.3 5.0 5.7 6.0 5.4 RAD 553 96.0 97.7 6.3 6.0 5.7 4.7 4.3 5.0 6.0 5.4 BLUE KNIGHT 93.0 96.3 4.7 5.3 7.3 5.0 4.3 5.0 5.7 5.3 MVS-130 99.0 99.0 6.3 6.0 5.7 5.3 4.3 4.3 5.3 5.3 A12-34 99.0 99.0 5.3 6.0 6.0 4.3 4.7 4.3 5.3 5.1 COMANCHE (NAI-14-176) 96.0 96.0 5.3 5.7 4.0 5.0 5.0 5.0 6.0 5.1 J-1319 96.0 97.7 5.0 5.0 6.7 5.0 4.3 4.3 5.7 5.1 J-2726 96.0 96.0 5.0 5.3 7.0 5.0 4.0 4.3 5.3 5.1 HEARTLAND (NAI-14-187) 96.0 96.0 5.3 6.0 5.7 4.3 4.3 4.0 5.0 5.0 PST-11-7 91.0 91.3 5.0 5.3 6.3 5.0 4.3 4.3 4.3 5.0 A11-38 89.7 93.0 4.3 5.3 6.0 4.0 4.0 4.0 5.3 4.7 DLFPS-340/3556 91.3 93.0 4.3 5.0 5.7 4.7 4.0 4.0 4.7 4.6 DUBLIN (PST-K15-157) 91.0 92.7 5.3 4.0 5.7 4.0 4.0 4.0 4.7 4.5 NAI-14-132 91.3 94.3 4.3 4.3 4.7 4.0 3.7 5.7 4.7 4.5 NEW MOON (PST-K15-177) 86.3 88.3 4.0 4.3 5.0 3.7 4.7 4.0 5.0 4.4 PPG-KB 1320 76.7 80.0 3.0 4.3 6.7 3.7 3.7 5.0 4.7 4.4 DLFPS-340/3494 81.7 86.7 3.3 4.3 5.0 3.3 3.7 3.7 4.3 4.0 LSD VALUE 10.0 8.1 2.4 2.8 3.4 2.4 2.7 3.7 3.5 1.8 C.V. (%) 5.0 4.0 21.2 21.6 19.4 21.2 23.1 25.1 20.8 15.8 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. 2021 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2017 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 5.6-6.0 61-150 151-240 2.1-3.0 FULL SUN 1.6-2.0 TO PREVENT DORMANCY