TABLE 4. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT AMES, IA 1/ 2020 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC SPRING LEAF SUMMER QUALITY RATINGS NAME COLOR GREENUP TEXTURE DENSITY APR MAY JUN JUL AUG SEP OCT MEAN BARVETTE HGT? 6.3 7.7 7.3 7.7 8.0 8.7 6.0 7.0 6.7 7.0 7.3 7.2 A16-17 8.0 5.7 7.3 7.0 7.3 8.0 6.3 6.0 6.3 7.3 7.0 6.9 STARR (GO-2628) 7.0 4.7 7.7 7.0 6.3 7.3 7.0 5.3 7.3 7.0 7.7 6.9 KENBLUE 6.7 7.3 7.7 7.0 7.7 8.7 6.0 6.3 6.3 6.0 6.3 6.8 NAI-14-128 7.3 4.7 7.7 6.7 6.0 6.7 7.3 6.3 6.3 7.0 7.7 6.8 SYRAH (LTP-11-41) 8.0 5.7 7.3 7.3 6.0 8.7 8.0 6.0 5.7 5.7 7.3 6.8 A99-2897 6.7 5.3 8.0 6.7 5.7 7.7 7.3 6.0 7.0 7.0 6.3 6.7 PPG-KB 1304 8.0 7.3 7.0 6.7 7.3 7.0 7.3 6.0 6.0 6.7 6.3 6.7 BAR PP 79494 8.3 5.0 7.7 6.7 5.3 8.7 7.7 6.3 6.7 6.3 5.3 6.6 MIDNIGHT 7.7 5.0 7.3 7.0 5.0 8.0 7.3 6.0 6.3 7.3 6.3 6.6 FINISH LINE (NAI-14-178) 7.0 7.0 7.3 7.3 6.7 7.3 7.7 6.0 5.3 7.0 5.7 6.5 BAR PP 7236V 6.3 7.7 7.3 6.3 7.3 8.0 5.7 5.7 5.3 6.7 6.3 6.4 SELWAY 6.3 5.3 7.7 7.3 7.0 7.7 6.0 4.3 5.7 7.0 7.3 6.4 TWILIGHT (NAI-13-132) 8.0 4.0 7.3 7.0 5.0 7.7 7.7 6.3 6.3 6.7 5.0 6.4 DLFPS-340/3553 7.0 6.7 7.0 6.3 6.0 6.7 7.0 5.7 6.0 6.3 6.3 6.3 KH3492 8.0 6.7 7.3 7.0 6.7 6.7 6.7 5.7 6.0 6.0 6.3 6.3 DUBLIN (PST-K15-157) 7.7 5.7 8.0 6.3 6.0 6.3 7.0 6.3 6.0 6.0 5.7 6.2 J-1138 7.3 5.3 7.7 6.0 5.7 7.7 7.0 5.0 6.0 7.0 5.0 6.2 NAI-15-80 7.0 5.7 7.3 6.3 6.0 6.0 6.3 6.3 6.3 6.0 6.3 6.2 UNITED (NAI-13-14) 7.3 4.3 7.0 6.0 5.3 8.7 7.3 5.3 5.3 5.7 6.0 6.2 AMAZE (NAI-14-133) 6.7 5.0 6.7 6.3 5.3 6.3 6.3 5.7 6.3 6.0 6.7 6.1 DLFPS-340/3455 6.3 5.7 7.0 7.0 6.7 7.0 6.0 5.3 5.0 6.7 6.0 6.1 DLFPS-340/3549 6.7 5.0 7.7 6.3 6.0 6.7 6.3 5.7 5.7 6.0 6.3 6.1 DLFPS-340/3556 8.3 4.0 7.3 7.7 5.0 7.3 7.3 6.3 5.7 6.3 4.7 6.1 PST-K13-141 7.0 5.0 7.0 6.7 6.3 6.0 6.7 5.3 5.3 6.7 6.7 6.1 PST-K15-172 8.0 5.0 7.7 7.0 5.7 7.0 7.0 5.7 5.3 5.7 6.3 6.1 SKYE 6.7 5.7 7.3 7.0 6.0 7.3 6.7 5.3 5.7 6.0 6.0 6.1 A06-8 7.3 6.0 7.0 6.3 6.0 6.0 6.7 5.7 6.3 6.0 5.0 6.0 A10-280 6.3 6.0 6.7 6.3 6.3 6.0 6.3 5.3 6.0 5.3 6.7 6.0 A16-2 7.0 5.3 7.3 7.3 7.0 7.3 6.7 4.7 4.7 6.3 5.3 6.0 AKB3179 7.3 4.3 7.7 7.7 5.3 7.0 6.7 5.7 5.7 5.3 6.3 6.0 BLUE DEVIL 7.0 5.3 7.0 6.3 5.7 7.0 7.0 5.0 5.7 6.3 5.3 6.0 BOMBAY (GO-22B23) 7.7 7.0 6.7 6.3 6.3 6.3 7.0 5.7 5.3 5.7 5.7 6.0 DLFPS-340/3550 7.7 4.3 7.3 6.7 5.7 7.7 7.7 5.7 5.3 6.0 4.3 6.0 DLFPS-340/3552 7.3 4.7 7.3 7.0 5.0 6.3 6.7 6.7 6.7 5.7 5.3 6.0 PST-K15-167 7.7 5.0 7.0 6.3 5.7 6.7 7.0 5.7 5.0 6.3 5.7 6.0 RAD-1776 6.7 6.3 6.7 6.3 6.0 6.7 6.0 6.0 6.0 6.0 5.3 6.0 A11-26 7.0 5.3 7.7 7.0 5.0 7.0 7.7 4.3 4.7 6.0 6.3 5.9 A11-38 6.7 6.0 7.7 6.0 6.0 6.3 7.0 5.3 5.7 6.0 5.0 5.9 A11-40 6.7 7.7 7.7 6.0 7.0 7.7 6.0 4.7 5.0 5.7 5.3 5.9 COMANCHE (NAI-14-176) 6.7 5.3 7.0 6.3 5.0 6.7 6.0 5.3 6.3 5.3 6.3 5.9 DLFPS-340/3548 7.3 6.7 7.0 6.3 6.0 6.3 6.7 5.0 5.3 6.3 5.3 5.9 NAI-14-132 7.3 5.0 7.0 6.0 5.3 6.7 7.0 4.7 5.7 5.7 6.3 5.9 NURUSH (J-3510) 6.7 4.3 7.3 6.3 5.0 7.7 7.7 5.0 6.0 5.7 4.0 5.9 A16-1 6.0 6.3 7.7 6.3 6.7 6.7 6.0 4.3 5.0 6.0 5.7 5.8 BAR PP 71213 6.0 6.3 7.3 5.7 6.3 6.0 5.7 5.3 5.0 5.3 6.7 5.8 CLOUD (GO-2425) 7.7 5.7 7.0 5.7 5.7 7.0 6.7 5.0 5.0 5.7 5.7 5.8 HEARTLAND (NAI-14-187) 7.0 5.0 7.0 6.7 5.0 6.0 7.0 5.7 6.0 5.3 5.3 5.8 PPG-KB 1320 8.0 4.7 7.3 6.3 4.7 6.7 7.7 5.0 5.7 5.3 5.3 5.8 A16-7 6.3 6.0 7.3 6.0 6.0 6.0 6.3 5.0 5.3 6.0 5.3 5.7 TABLE 4. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF KENTUCKY BLUEGRASS CULTIVARS IN THE (CONT'D) 2017 NATIONAL KENTUCKY BLUEGRASS TEST AT AMES, IA 1/ 2020 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC SPRING LEAF SUMMER QUALITY RATINGS NAME COLOR GREENUP TEXTURE DENSITY APR MAY JUN JUL AUG SEP OCT MEAN BAR PP 7K426 6.0 5.3 6.7 6.7 5.3 5.7 6.7 5.0 5.7 5.3 6.3 5.7 DLFPS-340/3364 6.0 7.3 7.7 5.7 6.0 6.3 6.0 5.7 5.0 6.0 5.0 5.7 DLFPS-340/3444 6.0 6.3 7.7 6.0 6.7 6.7 6.3 4.7 4.7 5.3 5.7 5.7 NAI-14-122 7.3 4.7 7.7 6.0 5.0 6.0 6.3 5.3 5.3 5.7 6.3 5.7 PROSPERITY 8.0 5.0 7.3 6.7 5.3 6.7 7.7 4.7 5.7 5.0 5.0 5.7 PST-T14-39 7.0 4.7 7.7 6.3 6.0 6.3 6.0 5.0 5.0 6.3 5.0 5.7 A12-34 7.0 5.0 7.7 5.7 6.3 6.0 7.0 5.0 5.0 5.0 5.0 5.6 AKB3128 6.0 5.3 6.7 5.7 5.3 6.0 6.0 5.3 5.3 5.3 5.7 5.6 AKB3241 6.7 6.3 7.0 7.0 5.7 5.7 5.7 5.7 6.0 5.7 5.0 5.6 NK-1 5.7 5.0 7.3 6.3 6.0 6.0 6.3 5.3 5.3 5.3 5.0 5.6 ORION (PST-K13-143) 7.0 5.7 8.0 6.3 6.0 6.7 7.0 4.7 5.0 5.0 4.7 5.6 BABE 6.3 7.0 6.7 6.0 6.0 6.7 6.3 4.7 4.3 5.7 4.7 5.5 BLUE GEM (NAI-13-9) 8.0 4.7 7.7 6.3 4.7 6.0 6.7 5.7 5.7 5.7 4.3 5.5 A13-1 7.3 5.3 6.7 5.7 5.0 5.7 6.0 5.3 5.3 5.3 5.0 5.4 BAR PP 79366 6.3 4.7 7.3 6.3 4.7 6.3 6.3 4.7 4.7 5.7 5.7 5.4 DLFPS-340/3446 6.7 5.7 7.3 5.3 5.3 6.3 6.3 4.3 4.7 5.3 5.3 5.4 J-1319 7.7 5.3 7.7 6.0 4.7 5.7 7.0 5.7 5.0 5.3 4.3 5.4 JERSEY (NAI-A16-3) 6.3 5.7 7.3 6.3 5.0 6.3 6.3 4.7 5.0 5.0 5.3 5.4 MVS-130 7.3 4.3 7.3 6.7 5.0 6.3 6.7 4.7 5.0 5.7 4.7 5.4 RAD 553 6.7 4.3 7.0 6.3 5.7 6.7 6.0 4.7 4.3 5.0 5.3 5.4 SHAMROCK 6.3 6.7 7.3 5.7 6.7 6.7 6.7 4.0 4.0 4.7 5.0 5.4 DLFPS-340/3438 7.0 6.0 7.0 5.0 5.0 6.0 7.0 5.3 4.3 4.7 5.0 5.3 DLFPS-340/3551 6.7 6.3 7.3 6.0 5.7 5.7 6.0 4.7 5.3 5.3 4.7 5.3 ELECTRIC (PST-K11-118) 6.7 6.7 7.0 5.7 6.0 6.0 6.0 4.3 4.7 5.0 5.0 5.3 PALOMA (PST-K13-139) 7.0 5.7 7.3 6.3 5.0 6.3 7.3 4.3 4.7 4.7 5.0 5.3 PPG-KB 1131 7.0 5.3 7.0 5.7 4.7 6.7 7.0 4.7 5.0 5.0 4.3 5.3 AVIATOR II (NAI-15-84) 6.3 7.0 7.0 6.0 5.3 6.0 6.0 4.7 5.3 5.0 4.3 5.2 PST-11-7 6.7 6.3 8.0 5.7 6.0 5.7 6.3 4.7 5.0 4.7 4.3 5.2 BAR PP 7309V 6.7 5.3 7.7 6.0 5.7 6.3 6.3 4.3 3.7 4.3 5.0 5.1 J-2726 7.3 6.7 6.7 5.7 5.0 6.0 7.7 5.3 4.0 4.0 4.0 5.1 PIVOT 7.0 5.7 7.3 5.7 5.7 6.0 6.7 4.0 4.3 4.7 4.7 5.1 YELLOWSTONE (A12-7) 6.7 5.7 7.3 6.0 6.0 6.3 6.3 4.0 4.3 4.7 4.3 5.1 DLFPS-340/3500 7.3 5.0 7.7 6.0 4.7 5.7 6.0 4.3 5.0 5.0 4.3 5.0 NEW MOON (PST-K15-177) 7.3 4.7 7.0 6.3 5.7 6.3 7.3 3.3 3.7 4.0 4.7 5.0 BLUE KNIGHT 6.7 6.3 7.0 5.3 4.3 5.3 6.3 4.7 4.3 5.0 4.0 4.9 A15-6 6.3 6.0 6.7 5.0 5.0 6.3 7.0 3.7 3.7 3.7 4.3 4.8 BARSERATI (BAR PP 110358) 6.3 6.3 7.7 5.0 6.0 5.7 6.0 3.3 3.7 5.0 3.7 4.8 DLFPS-340/3494 6.3 5.0 7.0 5.3 5.0 6.0 6.3 3.0 3.7 4.0 3.3 4.5 AFTER MIDNIGHT 7.3 6.3 7.0 5.0 5.0 6.0 6.3 3.3 4.0 3.3 3.0 4.4 LSD VALUE 1.7 1.8 3.2 2.0 1.4 1.4 1.9 2.9 4.7 2.9 2.4 1.3 C.V. (%) 11.1 17.3 9.0 13.2 13.7 11.9 11.8 21.8 24.5 20.5 21.7 11.5 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 IA1 ANDY CLAY LOAM 7.1-7.5 0-60 0-150 2.1-3.0 FULL SUN 2.6-3.0 TO PREVENT DORMANCY