TABLE 16. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE 2022 NATIONAL PERENNIAL RYEGRASS TEST AT CORVALLIS, OR 1/ 2023 DATA TURFGRASS QUALITY RATINGS 1-9; 9=BEST 2/ GENETIC SEEDLING QUALITY RATINGS NAME COLOR VIGOR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN PPG-PR 644 8.0 7.3 5.7 6.0 6.3 6.3 7.0 6.7 7.7 8.3 8.3 8.3 8.7 8.0 7.3 DLF-PR-3728 8.0 7.3 5.3 5.3 6.0 6.0 7.0 6.0 8.7 8.3 8.0 8.0 8.7 7.3 7.1 GRAY EAGLE SLT (PST-2MEG) 8.3 7.7 6.3 6.7 6.7 6.7 7.0 6.0 7.7 7.3 7.3 7.0 7.7 7.3 7.0 PPG-PR 664 8.7 7.0 5.7 5.7 6.0 5.7 7.0 6.7 7.7 7.7 8.0 8.0 8.3 7.3 7.0 LTP-RPP4 8.0 7.7 5.7 5.7 5.7 5.3 7.0 7.0 8.0 8.3 8.0 8.0 7.7 7.0 6.9 NAI-PR5 8.0 7.7 6.3 7.0 7.0 6.3 6.3 5.3 7.3 7.7 8.0 7.3 7.7 6.3 6.9 PPG-PR 637 8.0 7.7 5.0 5.0 5.3 5.3 7.3 5.7 8.3 8.0 8.3 7.7 8.7 7.7 6.9 APS 7.7 7.7 5.3 5.7 5.7 5.7 7.0 7.0 7.7 7.7 7.7 7.0 7.3 7.3 6.8 BSG-PR22 9.0 7.3 7.3 6.7 6.7 5.7 7.3 6.0 7.7 8.0 7.3 7.3 6.7 5.3 6.8 PPG-PR 611 8.0 7.3 5.7 5.0 5.3 5.7 7.3 7.3 8.0 7.7 7.7 8.0 7.0 6.3 6.8 PPG-PR 639 8.3 7.3 6.0 6.0 6.0 5.3 7.0 6.0 7.7 7.7 7.7 8.3 7.3 6.0 6.8 PPG-PR 643 8.0 7.7 5.3 5.3 5.7 5.7 7.0 6.7 8.0 7.0 8.0 7.7 7.7 7.3 6.8 PPG-PR 661 8.0 7.3 5.7 5.7 6.3 6.3 7.0 6.7 7.7 7.7 7.7 7.0 7.0 6.7 6.8 PPG-PR 665 8.0 7.3 5.3 5.0 5.7 5.7 7.0 6.7 8.0 8.0 8.0 8.0 7.3 6.3 6.8 DLF-PR-3729 7.7 6.3 5.3 5.0 5.3 5.3 6.7 6.3 8.0 8.0 8.0 7.7 7.7 6.7 6.7 ELEKTRA GLR (PPG-PR 671) 8.0 7.0 5.3 5.0 6.0 6.0 7.0 5.7 7.7 8.3 7.0 8.3 7.7 6.0 6.7 PPG-PR 646 8.3 7.0 5.3 5.7 6.0 6.0 7.0 6.0 7.3 7.7 7.7 7.0 8.0 7.0 6.7 PPG-PR 647 8.0 7.7 6.0 6.7 6.7 5.7 6.3 5.7 7.7 7.3 7.3 7.0 7.3 6.7 6.7 PPG-PR 658 8.3 7.3 5.3 5.3 5.3 5.3 7.3 6.3 8.0 7.7 7.3 7.3 7.7 7.0 6.7 PPG-PR 670 8.0 7.0 5.3 5.3 5.7 5.7 6.3 5.7 8.0 8.0 7.7 8.0 7.7 7.3 6.7 PST-214 8.3 7.3 5.7 5.7 6.0 6.0 7.0 6.0 8.0 7.3 7.3 6.7 7.7 6.7 6.7 PST-2E6 8.0 7.7 5.3 5.3 5.7 5.3 7.3 7.0 8.0 7.7 7.3 7.7 7.3 6.7 6.7 PST-2HFM 8.3 7.0 5.0 5.3 5.7 5.7 6.7 7.0 8.3 8.7 7.3 7.0 7.7 6.3 6.7 SE-DK 8.7 7.0 7.3 6.3 6.3 6.0 6.7 5.7 7.3 7.3 7.3 7.3 6.7 5.7 6.7 STELLAR 4GL 7.7 7.3 5.7 5.7 5.7 5.7 7.0 6.3 7.0 7.7 7.3 7.7 8.0 7.0 6.7 CJP1R 8.0 6.7 5.3 5.3 6.0 6.0 7.0 5.7 7.0 7.0 7.7 6.7 8.0 7.0 6.6 DLF-PR-3727 7.3 7.3 5.7 5.7 6.0 6.0 6.7 7.0 8.0 8.0 7.3 7.7 6.3 5.0 6.6 GO-RUS21 7.3 8.0 6.0 6.0 6.0 5.7 7.0 6.7 8.0 8.0 6.7 8.0 5.7 5.3 6.6 HIGH OCTANE 7.7 6.7 5.3 5.7 6.0 5.7 6.3 6.7 7.3 7.7 7.7 7.0 7.0 6.7 6.6 PPG-PR 606 8.3 7.0 6.0 5.3 5.7 5.7 7.0 6.3 7.7 8.0 7.3 7.0 7.0 6.7 6.6 PST-2BGL 8.3 7.3 5.3 5.0 5.3 5.3 7.0 5.3 8.0 7.7 8.0 7.7 7.7 7.3 6.6 PST-2MES1 8.0 8.0 5.7 5.7 6.0 6.0 7.0 6.3 7.7 8.3 7.0 6.7 7.0 6.3 6.6 PVF-RPP2 8.0 6.3 5.3 5.3 5.7 5.7 7.3 6.0 7.7 7.3 7.3 7.0 7.7 7.0 6.6 RC20-02O 8.0 8.0 5.7 6.0 6.3 6.3 6.3 6.3 7.0 7.3 8.0 7.0 7.0 6.0 6.6 SILETZ 7.7 6.7 5.7 5.7 6.3 6.3 6.3 5.3 6.7 7.3 7.7 8.0 7.0 6.3 6.6 BY-PS2 8.0 7.0 5.3 5.3 5.7 5.7 7.0 5.3 7.7 7.3 7.7 7.3 7.0 6.3 6.5 DLF-PR-3737 8.0 6.3 5.3 5.3 5.3 5.0 7.0 6.0 7.7 8.0 7.0 8.0 7.7 6.0 6.5 DLF-PR-3738 8.0 6.7 5.0 5.3 5.3 5.0 6.7 6.3 7.7 7.7 7.3 7.0 8.0 6.7 6.5 HOMERUN LS 7.7 7.3 5.3 5.0 5.7 5.7 6.7 5.7 7.3 8.0 7.7 7.7 6.3 6.7 6.5 LTP-NR 8.0 7.0 5.3 6.0 6.0 5.3 7.0 5.7 8.3 8.0 6.7 7.0 6.7 5.7 6.5 MRSL-PR22 9.0 7.0 7.3 6.3 6.3 6.0 7.0 6.0 7.3 7.0 7.0 6.7 6.3 5.0 6.5 PPG-PR 610 8.0 7.7 5.7 5.3 5.3 5.0 7.0 6.7 8.0 7.7 7.3 7.3 7.0 5.7 6.5 PPG-PR 663 8.0 7.0 5.0 5.0 5.7 5.7 7.0 6.7 8.0 8.3 7.0 7.3 6.7 5.7 6.5 PS4 8.0 7.0 5.0 5.0 5.7 5.7 7.0 6.0 7.3 7.3 8.0 7.0 7.3 6.7 6.5 PST-2ADS 7.7 7.0 4.7 4.7 5.0 5.0 6.3 6.7 8.0 8.3 7.0 7.3 8.0 6.7 6.5 QUASAR 7.3 6.7 6.0 5.7 5.7 5.7 6.3 5.7 7.0 8.0 7.0 7.3 7.3 6.0 6.5 RPP3 7.7 7.0 5.3 5.7 5.7 5.7 6.7 5.7 7.3 7.0 7.3 7.3 7.7 6.7 6.5 TABLE 16. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE (CONT'D) 2022 NATIONAL PERENNIAL RYEGRASS TEST AT CORVALLIS, OR 1/ 2023 DATA TURFGRASS QUALITY RATINGS 1-9; 9=BEST 2/ GENETIC SEEDLING QUALITY RATINGS NAME COLOR VIGOR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN SGP4 8.0 6.7 5.3 5.0 5.0 4.7 7.0 6.0 8.0 7.7 7.7 7.3 8.0 6.7 6.5 20PR10 7.3 7.7 5.3 5.0 6.0 6.0 6.3 6.7 8.0 8.0 6.7 7.3 6.3 5.0 6.4 ALPHA CENTAURI 8.0 7.0 4.7 4.7 5.0 5.0 6.7 6.7 8.3 8.3 7.3 7.3 7.0 6.0 6.4 DARK MATTER 8.0 7.0 6.7 6.3 6.3 6.3 7.0 5.7 7.0 7.0 6.3 6.7 6.0 5.3 6.4 DLF-PR-3735 8.0 5.7 4.3 4.7 4.7 4.7 7.0 5.7 7.7 7.7 7.7 7.3 8.3 7.3 6.4 PPG-PR 620 8.0 7.7 4.3 4.3 4.7 4.3 6.3 7.7 8.0 7.3 7.7 7.3 7.7 6.7 6.4 PPG-PR 666 7.7 7.3 5.7 6.0 6.3 6.0 6.7 5.3 7.7 7.3 6.7 7.3 6.3 5.0 6.4 PPG-PR 667 8.0 7.3 5.3 5.3 6.0 6.0 6.7 6.0 8.0 7.3 6.7 7.0 7.0 5.3 6.4 PPG-PR 668 7.7 7.0 5.3 5.3 5.3 5.0 6.7 6.0 7.7 8.3 6.7 7.7 7.3 5.7 6.4 PST-2EGY 7.3 7.3 5.7 5.7 6.0 6.0 6.7 5.7 7.0 8.3 6.7 6.3 6.7 6.0 6.4 PST-2GDS 8.3 7.0 5.7 5.7 5.7 5.7 6.7 5.3 7.7 7.7 7.0 6.7 7.0 6.0 6.4 ULTRA SPORT (PST-2HAF20) 8.3 6.7 4.7 4.7 5.0 5.0 7.0 6.7 8.0 7.7 7.0 7.0 7.3 6.3 6.4 DLF-PR-3726 7.3 7.0 6.0 5.7 6.0 6.0 6.0 6.3 7.3 7.3 6.3 7.3 6.0 5.3 6.3 DLF-PR-3730 8.0 6.3 5.3 4.3 4.7 4.7 6.3 5.3 8.3 8.3 7.3 7.7 7.7 6.0 6.3 PPG-PR 662 7.7 8.0 5.0 5.3 5.7 5.7 6.7 6.3 8.0 8.0 7.0 6.7 6.0 5.3 6.3 GO-RUS22 7.3 7.0 5.0 5.0 5.3 5.3 6.7 6.3 7.7 7.7 7.0 7.3 5.7 5.0 6.2 PISTON 7.7 7.0 5.3 5.7 6.0 6.0 6.3 5.7 7.0 7.0 7.3 6.3 6.3 5.7 6.2 PPG-PR 602 7.7 7.0 5.7 5.7 6.0 6.0 6.7 5.0 7.7 7.0 6.3 6.0 6.3 5.7 6.2 PPG-PR 642 7.7 7.0 5.3 5.3 5.3 5.3 6.3 5.7 7.0 7.3 7.3 7.3 6.3 6.0 6.2 DLF-PR-3736 7.3 6.7 5.0 5.0 5.3 5.3 6.7 5.7 8.3 7.7 6.7 7.0 6.0 4.7 6.1 PVF-SGS5 7.3 6.7 5.7 5.0 5.0 5.0 6.7 5.3 7.7 7.7 7.0 6.3 6.3 5.0 6.1 TSC-CRS 8.3 7.0 6.7 6.0 6.0 5.3 6.7 5.3 7.0 7.3 6.0 5.7 5.7 5.0 6.1 GO-RUS20 6.7 7.7 5.7 5.0 5.7 5.7 6.7 6.7 7.7 7.3 5.7 6.3 5.0 4.3 6.0 GREENBACK 8.0 7.3 7.0 6.3 6.3 5.7 6.0 5.0 6.7 7.3 6.3 6.3 5.0 4.3 6.0 KARMA 7.0 6.7 5.0 5.0 5.3 5.3 6.3 6.3 7.3 7.7 6.7 6.3 6.0 5.0 6.0 PST-2DRG 7.7 7.0 5.3 5.3 5.7 5.7 6.7 6.0 7.7 7.0 6.0 5.7 5.3 5.0 5.9 PST-2SPF 8.3 7.3 6.7 5.7 5.0 4.3 7.3 5.3 7.0 6.7 7.0 5.3 5.0 5.3 5.9 SEPR-2013 8.3 8.0 4.7 5.0 5.0 4.7 6.7 5.0 7.0 7.0 7.0 7.0 7.0 5.0 5.9 BAR LP 22191 6.7 7.3 5.3 5.3 5.3 5.0 6.7 7.0 7.7 7.3 5.7 6.0 4.7 4.0 5.8 BRIGHTSTAR SLT 7.0 6.3 5.0 5.3 5.7 5.7 6.3 6.3 7.0 7.0 6.0 5.7 5.3 4.7 5.8 BAR LP 22174 6.7 7.0 4.3 4.3 5.3 5.3 6.7 6.7 6.7 6.7 5.7 6.0 4.7 4.3 5.6 BAR LP 22263 7.0 7.0 5.3 5.3 5.3 5.0 6.3 5.7 6.7 6.7 5.7 6.0 5.0 4.7 5.6 DLF-LGT-3066 6.7 5.7 4.7 4.7 5.0 5.0 7.0 5.3 7.0 8.0 4.7 5.3 5.0 4.3 5.5 BAR LP 22256 6.7 6.7 4.3 4.3 4.3 4.3 6.7 6.3 7.0 6.3 5.3 6.0 4.7 4.3 5.3 BAR LP 22262 6.7 7.0 4.3 4.0 4.3 4.3 6.0 6.0 7.3 6.7 5.7 5.7 4.7 4.0 5.3 LINN 4.7 6.0 4.0 3.0 3.0 2.0 4.0 5.0 5.0 5.0 5.0 5.0 4.0 4.0 4.1 LSD VALUE 0.7 1.3 1.0 1.3 1.4 1.4 0.9 2.4 1.4 2.0 1.3 2.2 1.4 1.2 0.6 C.V. (%) 5.8 8.6 10.6 13.0 12.6 13.2 7.2 14.2 8.8 10.5 10.8 14.0 12.8 12.8 6.1 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. 2023 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2022 NATIONAL PERENNIAL RYEGRASS 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 OR1 SILTY CLAY LOAM 5.6-6.0 61-150 241-375 4.1-5.0 FULL SUN 2.1-2.5 TO PREVENT DORMANCY