TABLE 20. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2017 NATIONAL KENTUCKY BLUEGRASS TEST GROWN UNDER TRAFFIC STRESS AT BLACKSBURG, VA 1/ 2019 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT PERCENT PERCENT PERCENT PERCENT PERCENT GREEN BARE GREEN BARE GREEN BARE COVER GROUND QUALITY QUALITY COVER GROUND COVER GROUND QUALITY 2 WEEKS 2 WEEKS 2 WEEKS QUALITY RATINGS PRE PRE PRE QUALITY POST POST POST POST POST POST NAME MAY JUN JUL AUG MEAN TRAFFIC TRAFFIC TRAFFIC MIDTRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC AKB3179 7.0 6.0 6.0 5.0 6.0 5.0 91.7 8.3 5.7 85.0 15.0 5.7 85.0 15.0 7.3 BARSERATI (BAR PP 110358) 6.0 6.3 5.3 5.3 5.8 5.3 93.0 6.7 6.0 86.3 13.3 6.0 86.3 13.3 7.3 HEARTLAND (NAI-14-187) 5.7 5.7 4.0 4.3 4.9 4.3 91.3 8.3 6.0 84.7 15.0 5.7 84.7 15.0 7.3 YELLOWSTONE (A12-7) 6.7 6.3 5.0 5.3 5.8 5.3 90.0 10.0 5.3 83.3 16.7 5.7 83.3 16.7 7.3 A11-26 7.7 6.3 5.7 5.7 6.3 5.7 91.3 8.3 5.3 84.7 15.0 5.3 84.7 15.0 7.0 BAR PP 7236V 8.0 5.7 5.0 5.0 5.9 5.0 90.0 10.0 5.3 81.7 18.3 5.3 81.7 18.3 7.0 BLUE GEM (NAI-13-9) 8.3 5.3 4.3 3.7 5.4 3.7 90.0 10.0 5.0 81.7 18.3 5.3 81.7 18.3 7.0 DLFPS-340/3500 7.3 6.0 4.7 5.3 5.8 5.3 91.3 8.3 5.7 84.7 15.0 5.7 84.7 15.0 7.0 J-1138 7.0 6.0 5.3 5.0 5.8 5.0 91.7 8.3 5.7 83.3 16.7 6.0 83.3 16.7 7.0 KH3492 6.7 6.0 5.7 5.0 5.8 5.0 91.3 8.3 6.0 86.3 13.3 6.0 84.7 15.0 7.0 PIVOT 6.7 6.0 5.7 5.3 5.9 5.3 90.0 10.0 5.0 80.0 20.0 5.3 80.0 20.0 7.0 PPG-KB 1320 8.0 6.0 5.3 5.0 6.1 5.0 91.3 8.3 5.7 86.3 13.3 5.7 86.3 13.3 7.0 RAD-1776 8.7 6.0 5.0 4.3 6.0 4.3 91.3 8.3 5.7 84.7 15.0 5.3 84.7 15.0 7.0 A06-8 7.0 6.0 5.0 4.7 5.7 4.7 91.3 8.3 5.3 83.0 16.7 5.3 83.0 16.7 6.7 A10-280 5.7 5.7 5.3 5.0 5.4 5.0 90.0 10.0 5.0 81.7 18.3 5.3 81.7 18.3 6.7 A11-38 8.0 6.0 5.0 5.7 6.2 5.7 88.3 11.7 5.0 80.0 20.0 5.3 80.0 20.0 6.7 A11-40 8.3 6.0 5.3 6.7 6.6 6.7 90.0 10.0 5.0 83.3 16.7 5.7 81.7 18.3 6.7 A13-1 5.7 5.7 5.0 4.7 5.3 4.7 90.0 10.0 5.0 83.3 16.7 5.3 83.3 16.7 6.7 A15-6 6.7 5.3 5.0 4.0 5.3 4.0 88.3 11.7 4.0 80.0 20.0 4.7 80.0 20.0 6.7 A99-2897 7.7 6.3 5.7 6.3 6.5 6.3 90.0 10.0 4.7 83.3 16.7 5.3 83.3 16.7 6.7 AFTER MIDNIGHT 8.0 6.0 6.3 4.3 6.2 4.3 88.3 11.7 4.7 81.7 18.3 5.7 80.0 20.0 6.7 AKB3241 8.0 6.0 6.3 4.3 6.2 4.3 88.3 11.7 4.3 81.7 18.3 5.0 81.7 18.3 6.7 BABE 7.3 5.7 5.3 4.0 5.6 4.0 90.0 10.0 5.3 81.7 18.3 5.7 80.0 20.0 6.7 BAR PP 79366 6.7 5.7 5.7 4.0 5.5 4.0 90.0 10.0 5.0 81.7 18.3 5.0 81.7 18.3 6.7 BAR PP 79494 8.3 6.0 5.7 4.3 6.1 4.3 88.3 11.7 5.3 80.0 20.0 5.3 80.0 20.0 6.7 BLUE KNIGHT 8.0 5.7 5.0 4.7 5.8 4.7 90.0 10.0 4.7 83.3 16.7 4.7 83.3 16.7 6.7 BOMBAY (GO-22B23) 8.0 5.7 4.3 5.3 5.8 5.3 88.3 11.7 5.0 80.0 20.0 5.3 80.0 20.0 6.7 COMANCHE (NAI-14-176) 6.0 5.3 5.0 4.0 5.1 4.0 86.7 13.3 4.7 78.3 21.7 4.7 78.3 21.7 6.7 DLFPS-340/3364 7.7 6.7 6.3 5.3 6.5 5.3 91.3 8.3 5.3 84.7 15.0 5.7 83.0 16.7 6.7 DLFPS-340/3444 7.0 5.3 5.3 4.7 5.6 4.7 91.3 8.3 5.0 84.7 15.0 5.3 83.0 16.7 6.7 DLFPS-340/3494 6.7 5.7 5.3 4.7 5.6 4.7 91.3 8.3 5.3 84.7 15.0 5.3 83.0 16.7 6.7 DLFPS-340/3548 8.0 6.3 5.7 5.7 6.4 5.7 93.0 6.7 5.3 83.3 16.7 5.3 83.3 16.7 6.7 DLFPS-340/3549 7.0 6.3 6.0 5.7 6.3 5.7 90.0 10.0 5.0 81.7 18.3 5.0 81.7 18.3 6.7 NURUSH (J-3510) 8.3 6.0 6.3 5.3 6.5 5.3 88.3 11.7 4.3 81.7 18.3 5.0 81.7 18.3 6.7 JERSEY (NAI-A16-3) 6.3 6.0 4.7 5.3 5.6 5.3 91.3 8.3 6.0 84.7 15.0 5.7 83.0 16.7 6.7 KENBLUE 8.7 5.3 4.3 4.0 5.6 4.0 91.3 8.3 5.7 86.3 13.3 5.3 84.7 15.0 6.7 SYRAH (LTP-11-41) 7.0 6.0 5.7 4.3 5.8 4.3 90.0 10.0 5.0 83.3 16.7 5.3 83.3 16.7 6.7 TWILIGHT (NAI-13-132) 7.3 5.7 5.3 4.3 5.7 4.3 88.3 11.7 5.0 80.0 20.0 5.0 78.3 21.7 6.7 NAI-14-122 7.0 6.0 5.0 6.3 6.1 6.3 90.0 10.0 5.0 81.7 18.3 5.3 81.7 18.3 6.7 NEW MOON (PST-K15-177) 7.0 6.0 5.0 4.7 5.7 4.7 91.3 8.3 5.0 84.7 15.0 5.3 83.0 16.7 6.7 NK-1 7.0 5.7 6.0 5.0 5.9 5.0 88.3 11.7 5.0 81.7 18.3 5.3 80.0 20.0 6.7 ORION (PST-K13-143) 6.7 6.0 6.7 5.0 6.1 5.0 88.3 11.7 4.3 80.0 20.0 4.7 80.0 20.0 6.7 PPG-KB 1131 5.0 5.0 5.0 3.7 4.7 3.7 88.3 11.7 4.3 80.0 20.0 4.7 81.7 18.3 6.7 PST-K11-118 8.0 5.3 5.0 4.0 5.6 4.0 88.3 11.7 4.0 80.0 20.0 4.7 80.0 20.0 6.7 PST-K15-167 7.3 5.3 5.0 5.0 5.7 5.0 88.3 11.7 4.7 80.0 20.0 5.0 80.0 20.0 6.7 PST-K15-172 7.0 5.7 5.3 4.3 5.6 4.3 90.0 10.0 5.0 81.7 18.3 5.0 80.0 20.0 6.7 RAD 553 8.3 6.0 5.7 6.0 6.5 6.0 90.0 10.0 5.0 81.7 18.3 5.3 81.7 18.3 6.7 SKYE 8.0 6.0 6.3 5.0 6.3 5.0 88.3 11.7 4.3 80.0 20.0 5.0 81.7 18.3 6.7 NAI-14-132 7.0 5.7 5.7 4.7 5.8 4.7 88.3 11.7 4.7 80.0 20.0 5.0 80.0 20.0 6.7 A12-34 7.3 5.3 5.0 3.3 5.3 3.3 88.3 11.7 4.7 80.0 20.0 4.7 78.3 21.7 6.3 TABLE 20. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2017 NATIONAL KENTUCKY BLUEGRASS TEST GROWN UNDER TRAFFIC STRESS AT BLACKSBURG, VA 1/ 2019 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT PERCENT PERCENT PERCENT PERCENT PERCENT GREEN BARE GREEN BARE GREEN BARE COVER GROUND QUALITY QUALITY COVER GROUND COVER GROUND QUALITY 2 WEEKS 2 WEEKS 2 WEEKS QUALITY RATINGS PRE PRE PRE QUALITY POST POST POST POST POST POST NAME MAY JUN JUL AUG MEAN TRAFFIC TRAFFIC TRAFFIC MIDTRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC TRAFFIC A16-2 6.0 5.3 5.7 4.3 5.3 4.3 86.7 13.3 4.3 78.3 21.7 4.7 78.3 21.7 6.3 AKB3128 5.7 5.7 4.7 4.7 5.2 4.7 88.3 11.7 5.0 81.7 18.3 5.0 81.7 18.3 6.3 AMAZE (NAI-14-133) 7.3 5.7 5.3 5.0 5.8 5.0 88.3 11.7 4.3 80.0 20.0 4.7 80.0 20.0 6.3 AVIATOR II (NAI-15-84) 6.7 5.3 4.7 5.0 5.4 5.0 88.3 11.7 5.0 80.0 20.0 5.0 80.0 20.0 6.3 BAR PP 71213 8.3 5.7 6.3 5.0 6.3 5.0 90.0 10.0 4.7 83.3 16.7 5.3 81.7 18.3 6.3 BAR PP 7309V 7.7 6.0 5.7 6.0 6.3 6.0 88.3 11.7 5.0 81.7 18.3 5.3 80.0 20.0 6.3 BARVETTE HGT? 8.3 5.7 5.3 5.3 6.2 5.3 88.3 11.7 5.0 80.0 20.0 5.3 78.3 21.7 6.3 BLUE DEVIL 7.0 5.3 5.3 4.7 5.6 4.7 90.0 10.0 5.0 81.7 18.3 5.0 80.0 20.0 6.3 CLOUD (GO-2425) 7.3 6.0 6.0 4.0 5.8 4.0 90.0 10.0 4.7 81.7 18.3 5.0 80.0 20.0 6.3 DLFPS-340/3438 7.0 5.7 5.0 5.0 5.7 5.0 88.3 11.7 4.3 80.0 20.0 4.7 80.0 20.0 6.3 DLFPS-340/3446 7.7 5.3 5.3 4.7 5.8 4.7 90.0 10.0 4.7 81.7 18.3 5.0 81.7 18.3 6.3 DLFPS-340/3455 8.0 5.0 5.0 4.3 5.6 4.3 88.3 11.7 4.0 80.0 20.0 4.7 80.0 20.0 6.3 DLFPS-340/3553 7.3 5.7 5.3 4.7 5.8 4.7 88.3 11.7 4.7 80.0 20.0 4.7 78.3 21.7 6.3 DLFPS-340/3556 6.0 5.7 5.0 4.7 5.3 4.7 88.3 11.7 4.7 80.0 20.0 4.7 78.3 21.7 6.3 FINISH LINE (NAI-14-178) 7.0 6.0 5.3 5.0 5.8 5.0 91.3 8.3 5.3 84.7 15.0 6.0 83.0 16.7 6.3 J-1319 7.7 6.0 6.0 4.7 6.1 4.7 90.0 10.0 5.0 83.3 16.7 5.7 81.7 18.3 6.3 J-2726 6.7 6.0 6.0 5.3 6.0 5.3 90.0 10.0 5.3 83.3 16.7 5.3 81.7 18.3 6.3 MVS-130 6.3 5.7 5.3 6.3 5.9 6.3 91.7 8.3 5.0 83.3 16.7 5.7 83.3 16.7 6.3 PPG-KB 1304 6.7 5.3 6.0 4.3 5.6 4.3 90.0 10.0 4.7 81.7 18.3 5.3 80.0 20.0 6.3 PROSPERITY 6.3 6.0 5.3 4.7 5.6 4.7 91.7 8.3 5.0 83.3 16.7 5.0 81.7 18.3 6.3 PST-K15-157 6.3 5.7 6.0 4.3 5.6 4.3 88.3 11.7 4.3 80.0 20.0 4.3 78.3 21.7 6.3 PST-T14-39 6.3 5.3 4.7 4.7 5.3 4.7 85.0 15.0 4.7 76.7 23.3 5.0 76.7 23.3 6.3 STARR (GO-2628) 8.3 5.7 6.3 5.0 6.3 5.0 90.0 10.0 5.0 81.7 18.3 5.0 80.0 20.0 6.3 A16-1 6.7 5.3 5.0 5.0 5.5 5.0 88.3 11.7 4.7 80.0 20.0 5.0 78.3 21.7 6.0 A16-17 6.0 5.3 4.7 5.7 5.4 5.7 83.3 16.7 5.0 75.0 25.0 5.0 75.0 25.0 6.0 A16-7 7.3 5.7 6.0 4.7 5.9 4.7 88.3 11.7 4.7 80.0 20.0 5.0 80.0 20.0 6.0 BAR PP 7K426 6.3 5.7 5.3 5.7 5.8 5.7 88.3 11.7 4.7 80.0 20.0 5.0 80.0 20.0 6.0 MIDNIGHT 5.7 5.0 5.3 3.3 4.8 3.3 88.3 11.7 4.3 80.0 20.0 4.3 78.3 21.7 6.0 NAI-14-128 5.7 5.3 6.0 4.0 5.3 4.0 88.3 11.7 4.3 78.3 21.7 4.7 78.3 21.7 6.0 PALOMA (PST-K13-139) 7.3 5.3 4.7 4.7 5.5 4.7 88.3 11.7 5.0 80.0 20.0 5.0 78.3 21.7 6.0 PST-11-7 8.7 6.3 6.3 5.7 6.8 5.7 88.3 11.7 4.0 80.0 20.0 5.0 78.3 21.7 6.0 SELWAY 8.7 6.0 5.7 5.0 6.3 5.0 88.3 11.7 4.7 80.0 20.0 5.0 78.3 21.7 6.0 SHAMROCK 7.3 5.7 4.7 5.0 5.7 5.0 86.7 13.3 5.3 78.3 21.7 4.7 78.3 21.7 6.0 DLFPS-340/3550 7.0 5.0 5.7 3.7 5.3 3.7 86.7 13.3 4.3 78.3 21.7 4.7 76.7 23.3 5.7 DLFPS-340/3551 8.0 5.3 5.0 4.7 5.8 4.7 86.7 13.3 4.3 78.3 21.7 4.7 75.0 25.0 5.7 DLFPS-340/3552 7.0 5.7 5.7 5.0 5.8 5.0 83.3 16.7 4.3 75.0 25.0 4.7 75.0 25.0 5.7 NAI-15-80 5.0 5.7 5.3 5.0 5.3 5.0 90.0 10.0 4.7 81.7 18.3 5.0 78.3 21.7 5.7 PST-K13-141 7.0 5.0 4.7 3.7 5.1 3.7 86.7 13.3 4.3 78.3 21.7 4.3 75.0 25.0 5.7 UNITED (NAI-13-14) 7.3 5.0 5.3 4.0 5.4 4.0 83.3 16.7 4.3 76.7 23.3 4.7 75.0 25.0 5.7 LSD VALUE 4.5 3.0 4.7 3.7 3.2 3.7 12.6 13.0 3.8 14.8 15.5 2.8 17.6 18.3 2.1 C.V. (%) 19.1 11.5 18.6 22.4 12.8 22.4 3.6 31.0 17.4 4.9 22.4 13.3 5.4 23.5 9.6 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. 2019 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 VA2 SILT LOAM AND SILT 4.6-5.5 0-60 0-150 3.1-4.0 LIGHT SHADE 1.6-2.0 ONLY DURING SEVERE STRESS