TABLE 15. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT STILLWATER, OK 1/ 2018 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC LEAF FALL GROUND COVER PERCENT ESTABLISHMENT QUALITY RATINGS NAME COLOR TEXTURE DENSITY FALL STEM RUST WEEK 2 WEEK 3 WEEK 4 SEP OCT NOV MEAN BARVETTE HGT? 6.3 7.3 7.0 80.0 7.7 14.0 40.0 28.3 6.3 4.7 6.7 5.9 A10-280 7.7 6.0 5.7 51.7 8.7 8.7 30.0 13.3 5.3 4.7 6.3 5.4 DLFPS-340/3552 7.7 6.3 6.7 51.7 7.0 9.3 40.0 38.3 5.7 4.0 6.7 5.4 SKYE 7.3 6.0 7.0 58.3 8.3 6.7 43.3 28.3 5.0 4.7 6.7 5.4 DLFPS-340/3551 8.0 5.7 7.3 66.7 8.3 6.3 50.0 31.7 5.3 4.3 6.3 5.3 GO-22B23 7.3 6.0 5.7 43.3 7.3 8.3 56.7 48.3 5.3 4.3 6.3 5.3 BAR PP 7K426 7.0 6.0 6.7 46.7 8.3 11.3 50.0 33.3 5.3 4.7 5.7 5.2 DLFPS-340/3549 7.3 6.0 6.0 56.7 8.0 7.0 43.3 31.7 5.0 4.3 6.3 5.2 GO-2425 7.0 6.7 6.7 60.0 8.0 10.0 46.7 35.0 5.3 4.0 6.3 5.2 GO-2628 7.3 6.0 7.7 43.3 8.0 11.3 50.0 40.0 4.7 4.3 6.7 5.2 PST-11-7 7.7 6.3 7.3 53.3 8.7 10.7 45.0 21.7 5.0 4.7 6.0 5.2 A15-6 6.7 5.3 6.3 73.3 8.3 10.0 50.0 31.7 5.3 4.3 5.3 5.0 A16-17 7.0 6.3 6.0 61.7 8.3 13.7 30.0 20.0 4.7 4.3 6.0 5.0 A16-7 8.3 5.7 6.3 51.7 8.0 7.7 46.7 26.7 4.3 4.3 6.3 5.0 BAR PP 7236V 6.3 5.7 6.7 40.0 8.0 12.0 46.7 46.7 5.0 3.7 6.3 5.0 BAR PP 7309V 7.0 6.0 7.0 58.3 6.3 10.0 50.0 23.3 5.0 4.0 6.0 5.0 BARSERATI (BAR PP 110358) 6.7 6.0 6.3 43.3 7.0 11.0 53.3 33.3 4.7 4.0 6.3 5.0 DLFPS-340/3494 7.7 5.7 7.0 30.0 7.7 5.7 50.0 15.0 4.7 4.3 6.0 5.0 DLFPS-340/3548 8.0 5.0 5.7 41.7 7.7 7.0 26.7 11.7 4.7 3.7 6.7 5.0 KENBLUE 6.0 6.7 5.3 46.7 5.3 11.0 43.3 25.0 5.0 3.3 6.7 5.0 KH3492 7.3 6.0 6.3 46.7 8.3 10.7 33.3 46.7 4.3 4.3 6.3 5.0 J-1138 7.7 6.3 7.0 56.7 7.7 14.0 46.7 18.3 4.7 3.7 6.3 4.9 RAD-1776 7.0 6.0 6.0 43.3 7.7 15.3 46.7 36.7 4.7 4.3 5.7 4.9 YELLOWSTONE (A12-7) 7.0 6.0 6.0 60.0 8.0 11.3 43.3 41.7 5.0 3.7 5.7 4.8 DLFPS-340/3444 8.0 5.7 6.3 33.3 7.3 11.7 46.7 33.3 4.7 3.7 6.0 4.8 PPG-KB 1304 8.0 5.3 6.0 43.3 8.0 12.3 50.0 41.7 4.3 4.0 6.0 4.8 A99-2897 8.0 5.7 7.0 53.3 8.3 8.3 33.3 13.3 4.7 4.3 5.0 4.7 A16-2 7.3 6.3 5.7 61.7 7.0 12.7 60.0 46.7 4.3 4.0 5.7 4.7 DLFPS-340/3556 8.0 5.3 5.7 28.3 8.7 9.0 36.7 16.7 4.0 4.0 6.0 4.7 NAI-A16-3 7.0 5.7 6.7 43.3 8.3 13.0 43.3 34.3 5.0 4.0 5.0 4.7 PROSPERITY 8.3 6.0 6.3 50.0 7.7 9.0 28.3 23.3 4.3 4.3 5.3 4.7 BAR PP 79494 7.3 5.7 6.7 35.0 8.3 6.3 36.7 25.0 4.3 4.0 5.3 4.6 DLFPS-340/3438 7.3 5.3 6.0 21.7 8.3 8.0 50.0 36.7 5.0 3.7 5.0 4.6 DLFPS-340/3455 7.0 6.0 6.0 40.0 6.3 9.0 40.0 15.0 5.0 3.3 5.3 4.6 DLFPS-340/3550 7.7 5.7 5.7 46.7 8.0 6.3 33.3 11.7 4.3 3.7 5.7 4.6 J-2726 8.0 6.3 5.0 35.0 8.0 7.7 28.3 11.7 4.7 3.7 5.3 4.6 NAI-13-14 7.7 5.7 6.0 46.7 8.3 10.0 38.3 25.0 5.0 3.7 5.0 4.6 BABE 7.3 6.0 7.0 45.3 8.3 14.3 38.3 40.0 4.7 4.0 4.7 4.4 A11-26 7.0 6.3 5.7 51.7 8.0 11.7 46.7 30.0 4.3 3.3 5.7 4.4 A16-1 8.0 6.3 5.0 36.7 8.0 11.0 46.7 36.7 4.3 3.7 5.3 4.4 AFTER MIDNIGHT 8.0 6.3 6.3 63.3 6.7 12.0 43.3 16.7 4.7 3.3 5.3 4.4 BAR PP 79366 7.0 6.0 6.7 40.0 8.0 9.7 30.0 15.0 4.0 3.7 5.7 4.4 BLUE DEVIL 8.3 5.7 6.0 41.7 8.3 7.7 36.7 18.3 4.0 3.7 5.7 4.4 DLFPS-340/3553 7.7 5.7 6.0 35.0 8.0 6.0 33.3 16.7 4.3 3.7 5.3 4.4 J-1319 8.7 5.7 5.3 25.0 8.7 15.7 36.7 26.0 4.7 3.0 5.7 4.4 PST-K11-118 6.0 6.3 6.0 45.0 8.7 5.7 41.7 12.0 4.0 3.3 6.0 4.4 PST-K15-177 8.0 5.7 6.0 38.3 7.7 10.3 40.0 18.3 4.3 3.7 5.3 4.4 RAD 553 7.0 6.7 5.7 28.3 7.3 9.0 43.3 30.0 4.3 3.7 5.0 4.3 DLFPS-340/3500 7.0 5.7 6.0 26.7 9.0 6.0 36.7 13.3 4.0 3.3 5.7 4.3 J-3510 8.0 6.3 5.0 32.3 8.7 11.7 43.3 31.7 4.3 4.0 4.7 4.3 TABLE 15. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT STILLWATER, OK 1/ 2018 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC LEAF FALL GROUND COVER PERCENT ESTABLISHMENT QUALITY RATINGS NAME COLOR TEXTURE DENSITY FALL STEM RUST WEEK 2 WEEK 3 WEEK 4 SEP OCT NOV MEAN PPG-KB 1131 7.7 6.3 5.7 21.7 9.0 12.7 33.3 26.7 4.0 3.3 5.7 4.3 A13-1 7.0 5.7 5.3 21.7 9.0 12.7 23.3 10.0 4.0 3.3 5.3 4.2 SELWAY 6.7 6.7 5.7 43.3 8.3 8.7 33.3 38.3 4.3 3.3 5.0 4.2 MIDNIGHT 7.3 6.3 5.7 51.7 8.7 17.3 50.0 41.7 4.0 3.7 5.0 4.2 ORION (PST-K13-143) 7.7 6.3 6.3 30.0 7.3 7.3 36.7 18.3 4.3 3.3 5.0 4.2 PST-K13-139 7.7 5.7 5.7 28.3 8.7 5.7 25.0 10.0 4.0 3.3 5.3 4.2 PST-K15-167 8.0 6.3 6.3 23.3 7.7 8.3 43.3 23.3 4.3 3.3 5.0 4.2 AKB3128 7.7 5.7 6.3 30.0 8.0 13.0 36.7 13.3 3.7 3.3 5.3 4.1 LTP-11-41 7.3 6.0 6.0 46.7 7.7 11.3 36.7 30.0 4.3 3.3 4.7 4.1 AKB3179 7.7 5.7 6.3 20.0 8.0 8.3 33.3 11.7 3.7 3.3 5.3 4.1 BAR PP 71213 7.3 6.0 5.7 23.3 6.3 15.0 30.0 6.7 3.7 3.3 5.3 4.1 MVS-130 8.0 5.7 5.0 45.0 8.0 9.3 33.3 15.0 3.7 3.0 5.7 4.1 PPG-KB 1320 8.0 5.3 5.3 23.3 8.7 8.3 46.7 26.7 3.7 3.7 5.0 4.1 PST-K13-141 7.3 5.3 5.3 23.3 8.7 7.7 26.7 15.0 3.3 3.7 5.3 4.1 AKB3241 7.3 6.0 4.7 25.0 8.0 5.7 26.7 16.7 4.0 3.3 4.7 4.0 DLFPS-340/3364 8.0 5.3 3.7 28.3 8.3 4.0 20.0 11.7 3.7 3.7 4.7 4.0 NAI-13-132 7.7 6.0 4.7 33.3 8.7 14.7 28.3 18.3 3.7 3.3 5.0 4.0 NAI-14-122 7.7 5.7 5.7 35.0 9.0 7.7 33.3 23.3 4.0 3.3 4.7 4.0 NAI-15-84 8.0 6.0 5.7 31.7 6.7 9.0 31.7 11.7 4.0 3.0 5.0 4.0 PST-K15-172 8.0 5.0 6.3 30.0 7.7 10.0 33.3 26.7 3.7 3.3 5.0 4.0 SHAMROCK 7.0 5.3 5.0 28.3 8.7 12.7 36.7 29.3 3.7 3.3 5.0 4.0 A06-8 6.7 6.0 5.0 30.0 8.0 7.3 25.0 11.0 4.0 2.7 5.0 3.9 NAI-13-9 7.7 5.7 6.3 41.7 7.7 6.3 23.3 18.3 3.3 3.3 5.0 3.9 NAI-14-133 8.0 6.3 5.0 20.0 7.7 9.0 26.7 21.7 4.0 3.0 4.7 3.9 NAI-14-128 7.7 6.3 4.7 45.0 7.7 6.7 33.3 13.3 3.7 3.7 4.0 3.8 A12-34 8.0 5.3 5.7 15.0 8.7 6.3 46.7 23.3 3.3 3.0 4.7 3.7 NK-1 7.7 5.7 4.3 20.0 8.3 7.3 23.3 36.7 3.3 3.0 4.7 3.7 PIVOT 7.7 6.3 4.7 21.7 7.3 7.0 30.0 23.3 3.3 3.0 4.7 3.7 PST-T14-39 7.3 5.7 5.3 23.3 8.7 8.3 40.0 25.0 3.3 3.0 4.7 3.7 A11-38 7.3 6.0 5.7 25.0 8.3 6.3 46.7 23.3 3.0 3.0 4.7 3.6 A11-40 7.0 5.0 6.0 11.7 7.3 16.7 33.3 12.7 3.3 3.0 4.0 3.4 NAI-14-176 8.3 6.0 4.3 13.3 8.3 6.7 33.3 11.7 3.3 2.7 4.3 3.4 NAI-14-178 7.7 6.0 5.0 11.7 7.3 6.3 18.3 11.7 3.0 2.3 4.7 3.3 NAI-15-80 7.0 6.0 3.7 23.3 8.7 8.7 25.0 21.7 3.3 3.0 3.7 3.3 DLFPS-340/3446 7.7 5.7 6.0 25.0 9.0 4.3 16.7 8.3 3.3 2.7 3.7 3.2 NAI-14-132 8.7 6.7 4.3 35.0 9.0 7.0 36.7 21.7 3.3 2.7 3.7 3.2 NAI-14-187 8.3 6.3 4.7 10.0 8.7 5.3 20.0 5.0 3.0 2.7 4.0 3.2 PST-K15-157 7.3 5.7 4.3 10.0 8.0 7.3 23.3 20.0 2.7 2.3 4.7 3.2 BLUE KNIGHT 7.7 5.7 6.0 10.0 8.7 8.0 33.3 10.0 2.3 2.3 4.0 2.9 LSD VALUE 1.3 1.3 4.3 45.7 4.3 19.0 51.0 42.7 2.1 3.3 3.4 2.0 C.V. (%) 8.6 9.6 22.1 53.6 14.2 52.4 40.0 65.9 22.3 25.7 21.3 19.0 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. 2018 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 OK1 LOAM 7.1-7.5 61-150 241-375 4.1-5.0 FULL SUN 0.0-0.5 TO PREVENT STRESS