TABLE 9. MEAN TURFGRASS QUALITY RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT COLLEGE PARK, MD 1/ 2020 DATA TURFGRASS QUALITY RATINGS 1-9; 9=BEST 2/ NAME MAY JUN JUL AUG SEP OCT NOV MEAN AFTER MIDNIGHT 7.7 7.3 5.7 6.7 7.7 7.7 7.7 7.2 PPG-KB 1131 7.0 7.3 5.7 6.7 7.7 8.0 8.0 7.2 BAR PP 79494 7.3 7.7 5.7 6.7 7.7 7.3 7.7 7.1 J-2726 7.7 8.0 5.7 6.7 6.7 7.3 7.7 7.1 BAR PP 79366 7.7 8.0 4.7 6.3 7.0 7.7 7.7 7.0 BLUE GEM (NAI-13-9) 7.0 7.3 6.3 7.0 7.3 7.0 7.0 7.0 J-1138 6.7 7.3 5.3 7.0 7.3 7.3 8.0 7.0 MIDNIGHT 6.7 7.0 6.0 6.7 7.7 7.3 7.3 7.0 NEW MOON (PST-K15-177) 7.0 7.0 6.0 6.7 6.7 7.0 7.0 6.8 BARSERATI (BAR PP 110358) 6.3 6.7 5.7 7.0 8.0 7.0 6.3 6.7 CLOUD (GO-2425) 7.0 6.3 5.7 6.3 7.3 7.0 7.0 6.7 PPG-KB 1304 6.7 6.3 6.0 7.0 7.0 7.0 7.0 6.7 JERSEY (NAI-A16-3) 7.3 7.3 4.7 6.0 6.3 7.0 7.3 6.6 NAI-14-128 6.7 7.0 5.0 6.3 7.0 7.0 7.3 6.6 NURUSH (J-3510) 7.0 7.3 5.3 6.3 6.7 6.7 7.0 6.6 PROSPERITY 6.3 6.3 5.3 6.7 7.0 7.0 7.3 6.6 STARR (GO-2628) 6.7 6.3 5.7 6.3 7.0 7.0 7.0 6.6 A06-8 6.7 6.3 5.3 6.3 6.7 6.7 7.7 6.5 A16-17 6.3 6.7 5.3 6.3 6.7 7.0 7.0 6.5 DLFPS-340/3500 7.0 7.0 4.3 6.0 6.7 7.0 7.7 6.5 DLFPS-340/3550 7.0 7.0 5.3 6.0 6.3 6.3 7.3 6.5 ELECTRIC (PST-K11-118) 6.3 6.3 6.0 6.3 6.7 6.7 7.0 6.5 A11-38 6.7 6.3 5.0 6.0 6.7 6.7 7.3 6.4 BABE 6.7 6.3 5.3 6.0 6.7 6.7 7.0 6.4 BLUE DEVIL 6.3 7.3 5.0 6.0 6.0 6.3 7.7 6.4 BOMBAY (GO-22B23) 6.3 6.3 5.0 6.0 7.0 7.0 7.0 6.4 DLFPS-340/3552 6.7 5.7 5.0 6.3 7.3 7.0 7.0 6.4 KH3492 6.7 6.7 4.7 6.0 7.0 6.7 7.0 6.4 NAI-14-122 6.0 6.7 4.7 6.0 7.0 6.7 7.7 6.4 SYRAH (LTP-11-41) 6.0 6.7 5.3 6.0 6.7 6.7 7.3 6.4 A12-34 7.0 6.3 4.7 6.0 6.3 6.7 7.0 6.3 A99-2897 6.7 6.3 5.3 6.0 6.3 6.3 7.0 6.3 DLFPS-340/3556 6.3 7.0 5.0 6.0 6.3 6.7 6.7 6.3 PPG-KB 1320 6.3 6.7 6.0 6.3 6.3 6.3 6.3 6.3 A16-7 6.0 6.3 5.3 5.7 6.7 6.7 7.0 6.2 SKYE 6.3 5.7 4.7 6.0 7.0 6.7 7.3 6.2 UNITED (NAI-13-14) 6.7 6.7 4.7 6.0 6.0 6.0 7.3 6.2 YELLOWSTONE (A12-7) 6.0 6.7 4.3 5.7 7.3 6.7 7.0 6.2 A11-40 6.0 5.7 4.3 5.7 6.7 7.0 7.7 6.1 AKB3241 6.3 6.0 5.3 5.7 6.0 6.3 7.0 6.1 FINISH LINE (NAI-14-178) 6.0 5.7 4.7 5.7 7.0 6.7 7.0 6.1 NAI-14-132 6.7 7.0 4.0 5.3 6.3 6.3 7.0 6.1 TWILIGHT (NAI-13-132) 6.7 7.0 5.0 5.3 5.7 6.3 6.7 6.1 A16-1 5.7 6.0 5.0 5.7 6.3 6.3 7.0 6.0 A16-2 6.0 5.7 4.7 5.7 6.0 6.3 7.3 6.0 BAR PP 7K426 6.7 6.3 4.0 5.7 6.0 6.3 6.7 6.0 COMANCHE (NAI-14-176) 6.7 6.7 4.0 5.3 6.0 6.0 7.3 6.0 DUBLIN (PST-K15-157) 6.0 5.7 5.3 5.7 6.3 6.3 6.3 6.0 MVS-130 6.3 6.3 4.7 5.7 6.0 6.3 6.7 6.0 A11-26 6.0 7.0 4.0 5.3 6.0 6.3 6.7 5.9 TABLE 9. MEAN TURFGRASS QUALITY RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT COLLEGE PARK, MD 1/ 2020 DATA TURFGRASS QUALITY RATINGS 1-9; 9=BEST 2/ NAME MAY JUN JUL AUG SEP OCT NOV MEAN ORION (PST-K13-143) 6.0 5.7 5.3 5.7 6.7 6.0 6.0 5.9 AKB3179 6.7 6.7 3.7 5.0 6.0 6.0 6.7 5.8 AMAZE (NAI-14-133) 6.3 6.7 3.3 4.7 5.7 6.3 7.3 5.8 J-1319 5.3 6.0 5.0 5.3 6.0 6.0 6.7 5.8 RAD-1776 5.7 6.0 4.3 5.3 6.0 6.0 7.0 5.8 AKB3128 6.3 6.0 4.3 5.0 5.7 6.0 6.7 5.7 DLFPS-340/3494 6.3 6.0 4.7 5.3 5.7 5.7 6.3 5.7 DLFPS-340/3553 6.0 5.7 4.0 5.3 6.3 6.0 6.7 5.7 HEARTLAND (NAI-14-187) 6.3 6.3 4.0 5.0 5.7 5.7 6.7 5.7 NAI-15-80 6.0 5.7 5.0 5.0 5.3 6.0 6.7 5.7 NK-1 6.0 5.7 4.3 5.3 6.0 6.0 6.7 5.7 PALOMA (PST-K13-139) 5.7 5.3 5.0 5.7 6.0 6.0 6.0 5.7 A13-1 6.0 6.0 4.3 5.0 5.3 5.7 6.7 5.6 BAR PP 7236V 5.3 5.7 4.7 5.3 6.3 6.0 6.0 5.6 BAR PP 7309V 6.0 6.0 4.0 5.0 6.0 6.0 6.3 5.6 A10-280 5.3 5.0 4.3 5.3 6.0 6.0 6.7 5.5 AVIATOR II (NAI-15-84) 5.0 5.7 5.0 5.3 5.3 5.7 6.3 5.5 DLFPS-340/3446 5.7 5.7 5.0 5.3 5.7 5.3 6.0 5.5 DLFPS-340/3549 6.0 6.0 4.0 5.0 5.7 5.7 6.3 5.5 DLFPS-340/3551 5.7 5.7 4.7 5.3 5.3 5.7 6.3 5.5 PIVOT 5.7 5.3 5.0 5.3 5.7 5.7 6.0 5.5 BLUE KNIGHT 5.7 5.3 4.7 4.7 5.3 5.7 6.7 5.4 DLFPS-340/3438 5.7 6.0 3.7 4.7 5.3 5.7 6.7 5.4 DLFPS-340/3548 5.7 5.3 4.0 5.0 5.7 5.7 6.3 5.4 PST-K15-172 6.3 6.0 3.3 4.7 5.7 5.7 6.3 5.4 DLFPS-340/3455 5.0 4.7 4.7 5.3 5.7 5.7 6.0 5.3 PST-11-7 5.7 6.0 3.7 4.7 5.7 5.7 6.0 5.3 SHAMROCK 5.3 5.0 4.0 5.0 5.7 5.7 6.3 5.3 BARVETTE HGT? 4.0 4.7 4.0 5.0 7.0 6.0 6.0 5.2 DLFPS-340/3444 5.0 5.3 4.0 4.7 5.3 5.3 7.0 5.2 PST-K13-141 5.3 5.7 3.7 4.7 6.0 5.7 5.7 5.2 DLFPS-340/3364 4.3 6.0 4.3 4.3 5.3 5.7 6.0 5.1 A15-6 5.3 5.3 3.3 4.3 5.0 5.0 6.3 5.0 PST-K15-167 4.3 5.7 4.0 4.7 5.3 5.3 5.7 5.0 SELWAY 5.3 4.0 4.3 4.7 6.0 5.3 5.3 5.0 BAR PP 71213 6.0 5.3 3.3 3.7 4.3 4.7 5.0 4.6 PST-T14-39 5.7 5.3 3.7 4.0 4.0 4.0 5.3 4.6 RAD 553 5.0 4.7 3.7 4.3 5.0 4.7 5.0 4.6 KENBLUE 3.3 3.0 3.3 4.0 5.3 4.7 4.7 4.0 LSD VALUE 1.2 1.3 1.6 1.3 1.7 1.3 1.0 0.9 C.V. (%) 11.9 12.3 17.6 13.7 14.2 12.0 9.0 9.3 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. 2020 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 MD1 ILT LOAM AND SILT 6.1-6.5 61-150 151-240 1.1-2.0 FULL SUN 2.6-3.0 ONLY DURING SEVERE STRESS