TABLE 1. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF BENTGRASS CULTIVARS IN THE 2020 NATIONAL BENTGRASS (FAIRWAY) TEST GROWN AT AMES, IA 1/ 2024 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ SPRING SPRING SUMMER FALL PERCENT GROUND COVER COLOR QUALITY RATINGS NAME GREENUP DENSITY DENSITY DENSITY SPRING SUMMER FALL NOVEMBER APR MAY JUN JUL AUG SEP OCT NOV MEAN PENNCROSS 7.7 7.3 7.7 8.0 90.0 99 97.3 8.3 5.3 8.0 6.7 8.3 7.7 6.7 6.7 8.0 7.2 CHINOOK (H10G-OP) 8.0 6.7 7.7 8.0 91.3 99 98.3 7.7 5.3 7.3 6.7 8.0 7.7 6.3 6.7 8.0 7.0 OAKLEY (PPG-AP-MTV1) 5.7 7.7 7.0 8.0 70.0 99 99.0 7.0 5.0 7.7 7.0 7.7 7.0 6.7 6.7 8.0 7.0 PIRANHA 6.7 6.3 7.7 8.0 80.3 99 98.0 8.0 5.7 7.7 7.0 7.7 7.0 6.7 6.0 8.0 7.0 PST-0MRN 6.3 8.0 8.3 8.0 69.7 99 98.3 8.0 5.0 8.0 7.0 7.7 6.7 6.7 7.0 8.0 7.0 PST-0R2O 7.3 7.3 8.0 8.0 85.7 99 99.0 7.7 5.0 8.0 6.7 8.0 7.0 6.7 6.7 7.7 7.0 PST-R0DS 6.3 7.0 7.3 8.0 75.0 99 98.0 8.0 5.3 7.7 7.0 7.7 7.0 6.3 6.7 8.0 7.0 PRODIGY (PVF-PV-2) 7.3 7.7 8.0 8.0 84.7 99 99.0 7.3 5.0 8.0 7.0 7.3 6.7 7.0 6.7 8.3 7.0 007XL 8.3 6.7 7.3 8.0 90.7 99 99.0 7.7 5.3 7.3 7.0 7.7 6.3 6.7 6.7 8.0 6.9 MATCH PLAY 8.0 6.0 7.3 8.0 92.7 99 98.3 8.0 5.0 7.0 7.3 7.7 6.7 6.7 6.3 8.3 6.9 PVF-PV-1 7.7 7.7 8.0 8.3 85.7 99 99.0 7.0 5.7 7.7 7.0 8.0 6.3 6.0 6.7 8.0 6.9 SHARK 6.7 7.0 7.3 8.0 78.0 99 97.7 8.0 5.7 7.7 7.0 7.7 7.0 5.7 7.0 7.7 6.9 BARRACUDA 5.7 6.7 7.7 8.0 73.0 99 99.0 7.7 4.7 7.7 6.7 8.0 7.3 6.0 6.0 8.0 6.8 S1 8.7 6.7 7.7 8.0 94.0 99 98.7 7.3 5.0 7.7 7.0 7.7 7.0 6.0 6.3 8.0 6.8 SPECTRUM (LNS 19) 7.0 7.3 7.7 8.0 78.7 99 99.0 7.3 5.3 7.7 7.0 7.7 7.0 6.3 6.0 7.7 6.8 TILLINGHAST (DLF-AP-3084) 7.7 7.3 6.7 8.0 87.3 99 98.3 8.0 5.0 7.7 7.0 8.0 6.7 6.0 6.3 8.0 6.8 TOURPRO 8.3 6.7 7.0 8.0 92.3 99 98.0 8.0 5.0 7.7 7.3 7.7 7.0 5.7 6.0 8.0 6.8 MUSKET 7.3 5.7 6.3 8.0 85.7 99 97.7 8.0 5.3 7.7 7.0 7.3 6.3 5.7 6.3 7.7 6.7 PIPER (PPG-AP-MTV2) 7.3 6.3 8.0 8.0 83.7 99 99.0 7.0 5.0 7.3 7.0 7.3 6.3 6.3 6.0 7.7 6.6 LSD VALUE 4.6 3.3 2.0 0.4 41.2 0 1.5 1.4 1.0 1.6 1.1 1.6 1.7 1.1 0.9 1.1 0.3 C.V. (%) 21.1 15.9 10.2 1.7 16.4 0 0.7 7.4 7.6 6.5 5.2 6.5 9.2 7.9 6.4 4.5 2.2 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. 2024 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2020 NATIONAL BENTGRASS (FAIRWAY/TEE) 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 SANDY CLAY LOAM 7.1-7.5 0-60 0-150 2.1-3.0 FULL SUN 0.0-0.5 TO PREVENT DORMANCY