TABLE 5. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE 2022 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2023 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC SPRING QUALITY RATINGS NAME COLOR GREENUP APR MAY JUN JUL AUG SEP OCT NOV MEAN GO-RUS21 3.3 4.3 7.0 6.3 7.0 6.3 6.0 6.3 6.0 6.0 6.4 HOMERUN LS 3.7 4.0 6.7 6.3 7.0 6.3 5.7 5.7 5.7 6.7 6.3 SILETZ 5.3 3.3 6.3 6.7 6.3 6.0 6.3 6.3 6.0 6.7 6.3 DLF-PR-3730 4.0 3.7 6.3 6.7 6.3 6.7 6.0 5.7 5.3 6.3 6.2 PST-2ADS 4.7 5.3 6.0 6.0 7.0 6.3 6.0 6.0 6.0 6.0 6.2 PPG-PR 606 5.3 4.7 6.3 6.0 6.7 6.3 6.0 6.0 5.7 6.0 6.1 PPG-PR 610 4.7 5.7 6.7 6.0 6.3 6.0 6.0 6.0 5.7 6.0 6.1 PPG-PR 643 4.3 5.7 6.0 6.0 6.7 6.7 6.0 6.0 5.7 6.0 6.1 PPG-PR 668 4.0 5.0 6.3 6.3 6.3 6.3 5.7 6.0 5.7 6.0 6.1 PST-2MES1 5.0 5.3 6.3 6.0 7.0 6.3 5.7 6.0 5.3 6.0 6.1 APS 4.7 5.0 6.0 6.3 6.3 6.0 5.7 6.0 5.7 6.0 6.0 BAR LP 22262 3.3 5.3 5.0 6.0 6.3 6.0 6.0 6.7 5.7 6.0 6.0 BAR LP 22263 3.7 4.7 6.0 6.3 7.0 6.3 5.7 5.7 5.3 6.0 6.0 BSG-PR22 7.0 6.3 7.0 5.7 6.7 7.0 5.3 5.7 5.0 6.0 6.0 BY-PS2 5.0 7.3 5.7 6.0 6.3 6.3 5.7 6.0 5.7 6.0 6.0 CJP1R 5.7 5.3 5.7 6.0 6.7 6.0 6.0 6.0 5.7 6.0 6.0 DLF-PR-3729 4.0 6.0 6.3 6.0 6.7 6.3 5.7 6.0 5.3 6.0 6.0 DLF-PR-3736 4.0 6.3 6.0 6.0 6.3 5.7 6.0 6.3 5.7 6.0 6.0 DLF-PR-3738 5.7 3.7 5.7 6.0 6.0 6.7 6.0 6.3 5.3 6.0 6.0 GO-RUS20 3.3 5.3 6.3 6.0 6.3 6.0 6.0 6.0 5.7 6.0 6.0 HIGH OCTANE 5.7 4.3 6.0 6.0 6.3 6.0 6.0 6.0 5.7 6.0 6.0 LTP-NR 4.7 6.0 5.7 6.0 6.3 6.0 6.0 6.0 6.0 6.0 6.0 LTP-RPP4 5.3 4.7 5.3 5.7 7.0 6.0 6.0 6.0 5.7 6.0 6.0 NAI-PR5 4.7 6.0 5.3 6.0 6.3 5.7 6.0 6.3 6.0 6.0 6.0 PPG-PR 602 5.0 6.7 6.3 6.0 6.3 6.0 5.7 6.0 5.7 6.3 6.0 PPG-PR 611 4.3 5.0 5.7 6.0 6.7 6.0 6.0 6.0 5.3 6.0 6.0 PPG-PR 620 5.0 4.7 5.7 6.0 6.3 6.0 6.0 6.0 6.0 6.0 6.0 PPG-PR 642 4.7 6.0 5.7 6.0 6.7 6.0 5.7 6.0 5.7 6.0 6.0 PPG-PR 644 4.3 5.0 5.7 6.0 6.7 6.0 6.0 6.0 6.0 6.0 6.0 PPG-PR 646 6.7 4.7 6.0 5.7 6.3 6.0 6.0 6.3 5.7 6.0 6.0 PPG-PR 647 4.0 6.3 5.3 6.0 6.3 6.3 6.0 6.3 6.0 6.0 6.0 PPG-PR 662 5.3 7.0 5.3 5.7 6.7 6.0 6.0 6.0 6.0 6.0 6.0 PPG-PR 663 4.3 4.7 5.3 6.0 6.7 6.0 6.0 6.0 5.7 6.0 6.0 PPG-PR 665 2.7 5.7 5.7 6.0 6.3 6.3 5.7 6.0 5.7 6.3 6.0 PPG-PR 666 4.0 4.7 5.7 6.0 6.7 6.3 6.0 6.0 5.3 6.0 6.0 PPG-PR 667 5.0 5.7 5.7 6.0 6.7 6.0 5.3 6.3 5.7 6.0 6.0 PS4 4.3 3.0 5.7 6.0 6.3 6.7 5.7 5.7 6.0 6.0 6.0 PST-214 4.3 5.7 5.3 6.3 6.3 6.3 6.0 6.0 5.7 6.0 6.0 PST-2BGL 4.3 4.7 5.7 6.3 6.3 6.0 5.7 6.0 5.7 6.0 6.0 PST-2GDS 3.3 5.7 6.0 6.0 6.0 6.3 5.7 6.0 5.7 6.0 6.0 PST-2HFM 5.7 5.7 5.7 6.0 6.3 6.7 5.7 6.0 5.3 6.0 6.0 PVF-SGS5 3.3 7.0 5.7 6.0 6.0 6.7 6.0 6.0 5.7 6.0 6.0 RPP3 5.3 3.0 6.0 6.0 6.7 5.7 5.7 6.0 5.7 6.0 6.0 ULTRA SPORT (PST-2HAF20) 4.0 5.3 6.0 6.0 6.3 6.0 6.0 6.0 5.7 6.0 6.0 20PR10 3.3 3.7 5.7 6.0 6.3 5.7 5.7 6.0 5.7 6.0 5.9 BAR LP 22191 5.0 5.0 5.7 6.0 6.0 6.0 5.7 6.0 5.7 6.0 5.9 DLF-LGT-3066 4.0 4.0 5.7 6.0 6.0 6.0 6.0 6.0 5.7 6.0 5.9 TABLE 5. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE (CONT'D) 2022 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2023 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ GENETIC SPRING QUALITY RATINGS NAME COLOR GREENUP APR MAY JUN JUL AUG SEP OCT NOV MEAN DLF-PR-3735 6.7 5.7 5.3 6.0 6.3 6.3 5.3 6.0 5.3 6.3 5.9 DLF-PR-3737 5.0 5.3 5.3 6.0 6.3 6.3 6.0 6.0 5.0 6.0 5.9 GRAY EAGLE SLT (PST-2MEG) 5.7 5.7 5.0 6.0 6.3 6.3 6.0 6.0 5.7 6.0 5.9 PISTON 5.7 4.3 5.3 6.0 6.0 6.0 6.0 5.7 6.0 6.0 5.9 PPG-PR 637 4.0 6.0 5.7 6.0 6.0 6.0 5.7 6.0 6.0 6.0 5.9 PPG-PR 639 5.0 5.0 6.3 6.0 6.0 6.0 5.3 6.0 5.3 6.0 5.9 PPG-PR 658 4.3 4.3 5.0 6.0 6.0 6.7 5.7 6.0 6.0 6.0 5.9 PPG-PR 664 5.0 5.0 5.7 6.0 6.0 6.3 5.3 6.3 5.7 6.0 5.9 PPG-PR 670 4.7 5.7 6.0 6.0 6.0 6.0 5.3 6.0 5.3 6.3 5.9 PST-2DRG 4.3 6.0 5.7 6.0 6.7 6.0 5.3 6.0 5.7 6.0 5.9 PST-2E6 5.3 5.3 5.7 6.0 6.3 6.0 5.7 6.0 5.7 6.0 5.9 QUASAR 3.7 6.3 6.3 6.0 6.0 6.0 5.3 6.0 5.3 6.0 5.9 RC20-02O 4.7 6.0 6.3 6.0 6.0 6.0 6.0 5.3 5.3 6.0 5.9 SE-DK 5.7 3.3 6.0 6.3 6.0 6.0 5.7 5.7 5.3 6.0 5.9 SGP4 3.3 4.7 6.0 6.0 6.0 6.3 5.7 6.0 5.0 6.3 5.9 TSC-CRS 5.3 7.0 6.0 6.0 6.3 6.0 5.3 5.7 5.7 6.0 5.9 BAR LP 22256 4.3 5.3 5.3 6.0 6.0 6.0 5.7 6.0 5.7 6.0 5.8 BRIGHTSTAR SLT 4.3 5.7 5.3 6.0 6.7 6.3 5.3 5.3 5.7 6.0 5.8 DLF-PR-3726 5.0 6.0 5.0 6.0 6.0 6.0 5.7 6.0 5.3 6.0 5.8 DLF-PR-3727 4.7 5.0 5.0 6.0 6.3 6.0 5.0 6.0 5.7 6.0 5.8 ELEKTRA GLR (PPG-PR 671) 4.3 6.0 5.7 6.0 6.0 6.0 5.7 5.7 5.7 6.0 5.8 GO-RUS22 3.7 3.7 5.3 6.0 6.0 6.3 5.7 6.0 5.3 6.0 5.8 GREENBACK 7.0 5.3 5.3 6.0 6.7 6.0 5.0 5.7 5.3 6.0 5.8 PST-2EGY 4.3 5.3 5.7 6.0 6.7 6.0 5.0 5.7 5.7 6.0 5.8 PVF-RPP2 6.0 4.7 5.7 6.0 6.0 6.0 5.7 6.0 5.3 6.0 5.8 STELLAR 4GL 4.3 5.0 5.7 6.0 6.0 6.0 5.7 6.0 5.3 6.0 5.8 ALPHA CENTAURI 5.7 6.7 5.3 6.0 6.0 5.3 5.7 6.0 5.3 6.0 5.7 BAR LP 22174 2.7 6.7 5.0 6.0 6.3 5.7 5.0 5.7 6.0 6.0 5.7 DARK MATTER 6.0 6.0 6.0 6.0 6.0 6.0 5.3 5.3 5.0 6.0 5.7 KARMA 6.0 5.0 5.3 6.0 6.3 5.3 5.0 6.3 5.3 5.7 5.7 LINN 3.7 4.7 5.3 5.7 6.0 6.0 5.0 6.0 5.7 6.0 5.7 MRSL-PR22 7.0 5.7 5.7 6.0 6.3 6.0 5.0 5.3 5.0 6.0 5.7 PPG-PR 661 4.3 6.0 5.0 6.0 6.0 6.0 5.0 6.3 5.3 6.0 5.7 PST-2SPF 7.0 5.7 5.0 6.0 6.0 6.0 5.0 6.0 5.7 5.7 5.7 DLF-PR-3728 6.7 5.0 5.3 5.7 5.7 5.7 5.3 6.0 5.0 6.0 5.6 SEPR-2013 6.7 4.3 5.0 6.0 6.0 5.3 5.7 5.7 5.3 5.7 5.6 LSD VALUE 3.1 2.8 1.7 1.4 2.4 1.3 0.8 1.4 1.8 0.5 0.5 C.V. (%) 28.4 23.4 11.5 5.1 8.7 7.4 7.3 6.5 8.3 3.5 3.3 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 5. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE (CONT'D) 2022 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2023 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ DENSITY RATINGS PERCENT GROUND COVER RATINGS QUALITY RATINGS PERCENT ESTABLISHMENT NAME SPRING SUMMER FALL SPRING SUMMER FALL OCT 2022 NOV 2022 4 WEEKS 7 WEEKS GO-RUS21 8.7 6.7 7.3 96.3 68.3 70.3 4.3 6.3 35.3 79.3 HOMERUN LS 8.0 4.3 5.0 96.3 44.3 87.0 4.7 6.3 39.3 81.7 SILETZ 8.7 5.0 6.3 86.3 58.3 93.0 4.7 5.7 42.3 73.7 DLF-PR-3730 8.7 6.7 6.0 94.3 57.7 77.3 4.3 4.7 26.3 57.0 PST-2ADS 7.7 5.3 6.3 81.0 61.7 88.7 4.3 4.7 25.3 63.0 PPG-PR 606 8.0 5.0 4.3 91.7 51.0 69.0 4.0 4.7 18.7 58.0 PPG-PR 610 8.3 5.3 6.0 85.0 54.3 71.7 3.7 4.3 29.0 61.3 PPG-PR 643 8.0 6.3 7.0 91.7 58.7 83.3 4.3 4.3 21.3 58.3 PPG-PR 668 7.7 5.3 5.3 92.7 55.7 76.3 4.0 6.3 30.0 75.3 PST-2MES1 7.3 4.7 4.7 86.0 46.7 64.7 4.0 4.7 24.3 60.3 APS 7.3 5.7 6.3 89.0 62.3 78.0 4.7 4.7 23.7 65.7 BAR LP 22262 7.0 6.7 6.3 88.7 62.3 65.7 4.0 4.7 25.3 57.7 BAR LP 22263 8.0 5.0 6.0 81.0 51.7 67.3 4.7 4.7 15.7 62.0 BSG-PR22 6.0 4.7 4.3 80.3 38.7 60.7 4.0 4.7 24.3 57.3 BY-PS2 6.7 5.3 5.7 83.7 55.3 82.0 4.0 4.7 29.7 60.3 CJP1R 7.3 6.0 7.0 85.0 66.3 79.3 4.3 4.0 16.3 50.7 DLF-PR-3729 5.0 6.0 6.7 92.7 57.7 84.3 4.0 4.7 27.7 60.0 DLF-PR-3736 6.7 5.7 6.3 86.7 57.7 62.3 4.0 4.3 16.3 57.0 DLF-PR-3738 5.0 5.7 6.0 84.7 60.7 78.7 4.0 4.0 26.0 56.7 GO-RUS20 7.7 6.0 5.7 95.7 54.0 75.3 4.3 6.0 41.3 71.0 HIGH OCTANE 7.7 4.7 5.0 91.7 57.0 72.7 4.0 5.0 32.0 65.3 LTP-NR 7.7 5.3 6.0 91.3 53.7 83.0 3.3 4.0 18.7 53.3 LTP-RPP4 7.3 4.3 6.0 75.7 48.7 85.7 4.0 3.7 37.7 48.0 NAI-PR5 7.7 5.7 7.7 93.3 60.0 77.3 3.7 4.3 26.0 60.3 PPG-PR 602 6.7 5.0 5.3 92.0 52.0 76.0 4.0 5.0 29.7 65.3 PPG-PR 611 7.3 5.3 5.0 87.0 57.0 77.3 3.3 4.0 27.3 55.7 PPG-PR 620 7.7 5.7 8.0 77.3 59.3 82.3 4.0 4.3 23.7 58.0 PPG-PR 642 7.0 5.3 6.0 86.3 56.7 90.7 4.0 4.0 16.7 52.0 PPG-PR 644 8.0 4.7 7.7 91.7 57.0 80.3 3.3 4.7 25.0 61.0 PPG-PR 646 8.3 4.3 6.7 77.3 58.3 84.7 3.7 3.3 16.7 34.0 PPG-PR 647 7.0 7.3 7.3 88.3 68.0 81.7 3.7 4.0 25.7 58.0 PPG-PR 662 6.3 6.0 6.3 81.3 55.3 81.3 4.0 5.0 21.3 58.3 PPG-PR 663 7.3 5.3 5.0 81.7 58.7 81.3 4.0 4.3 19.7 53.7 PPG-PR 665 7.3 6.0 5.7 94.0 53.0 87.7 3.7 5.7 29.7 68.7 PPG-PR 666 8.7 5.3 3.7 78.3 55.0 70.7 4.3 4.0 26.3 54.7 PPG-PR 667 7.0 4.7 5.7 84.0 64.0 64.7 4.0 3.7 19.7 53.0 PS4 8.0 5.3 7.0 88.7 59.0 83.0 3.3 5.3 28.3 68.0 PST-214 7.7 5.0 6.0 81.7 49.0 70.0 4.0 4.7 14.7 43.3 PST-2BGL 7.7 5.0 5.0 88.7 48.0 71.7 4.3 5.0 30.7 64.7 PST-2GDS 7.7 4.7 5.0 84.7 48.3 81.0 3.7 5.7 18.3 66.7 PST-2HFM 8.0 4.7 6.3 83.0 55.3 78.3 4.0 4.0 32.7 54.7 PVF-SGS5 6.3 6.7 6.3 89.0 60.7 77.7 4.0 3.7 24.0 54.0 RPP3 8.3 5.0 6.7 83.3 55.3 87.0 4.0 5.0 25.7 59.0 ULTRA SPORT (PST-2HAF20) 7.3 4.7 4.7 91.0 51.7 75.0 4.0 5.0 29.0 52.7 20PR10 8.0 5.0 6.0 89.7 57.7 84.3 3.7 4.3 34.0 66.3 BAR LP 22191 8.0 5.7 5.7 85.0 55.7 69.0 4.0 4.0 25.7 57.3 DLF-LGT-3066 7.7 6.3 6.0 83.3 58.0 74.7 3.7 4.0 21.3 57.0 TABLE 5. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE (CONT'D) 2022 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2023 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ DENSITY RATINGS PERCENT GROUND COVER RATINGS QUALITY RATINGS PERCENT ESTABLISHMENT NAME SPRING SUMMER FALL SPRING SUMMER FALL OCT 2022 NOV 2022 4 WEEKS 7 WEEKS DLF-PR-3735 8.7 5.0 5.3 74.7 50.0 82.7 4.0 4.0 18.3 40.7 DLF-PR-3737 8.0 5.3 4.7 82.0 53.7 60.0 4.0 4.7 32.7 54.7 GRAY EAGLE SLT (PST-2MEG) 7.0 5.7 7.0 88.0 55.3 80.3 4.3 4.7 25.3 62.3 PISTON 8.0 4.0 5.3 76.3 50.3 88.3 4.0 4.3 21.3 53.7 PPG-PR 637 7.0 6.3 7.7 83.0 60.7 84.0 3.3 4.3 35.0 62.0 PPG-PR 639 7.7 5.0 6.0 80.7 56.3 80.3 3.7 3.7 29.3 42.3 PPG-PR 658 7.7 6.3 7.7 83.3 61.3 85.3 4.3 3.7 19.0 47.7 PPG-PR 664 7.3 5.3 5.7 81.3 59.3 76.3 4.0 3.7 18.0 45.7 PPG-PR 670 8.3 5.3 5.7 81.3 52.7 79.3 3.7 5.0 25.3 57.3 PST-2DRG 8.0 4.0 6.0 87.3 47.7 78.3 3.7 4.0 22.0 55.3 PST-2E6 8.0 5.3 6.3 74.3 46.3 75.3 3.3 4.0 29.7 49.0 QUASAR 6.3 5.3 5.7 80.3 56.0 72.7 4.3 5.0 24.0 55.7 RC20-02O 4.3 4.3 4.3 81.0 54.3 64.3 3.7 5.0 30.3 60.0 SE-DK 7.7 3.3 4.0 73.7 37.7 61.7 4.3 5.3 23.3 63.0 SGP4 8.0 5.3 5.0 85.0 58.3 87.7 4.0 4.0 28.7 52.3 TSC-CRS 6.7 3.0 6.3 77.3 53.3 72.3 3.7 4.3 23.0 58.3 BAR LP 22256 7.7 5.0 6.3 78.7 49.0 65.0 4.0 4.0 15.3 48.7 BRIGHTSTAR SLT 6.7 4.3 5.3 83.3 46.3 68.0 3.7 4.3 20.3 61.0 DLF-PR-3726 7.0 5.7 5.0 87.3 51.7 65.7 4.3 4.3 25.3 50.7 DLF-PR-3727 8.0 5.7 5.3 79.3 52.3 71.0 4.0 3.7 20.0 42.0 ELEKTRA GLR (PPG-PR 671) 7.0 5.0 6.0 87.7 53.7 74.7 3.3 5.0 22.0 68.7 GO-RUS22 8.7 5.3 6.0 84.3 62.7 77.3 3.7 4.7 26.0 59.0 GREENBACK 6.7 2.7 4.3 73.0 46.0 59.3 4.7 4.3 26.3 53.0 PST-2EGY 7.7 5.0 5.7 84.0 56.3 75.0 4.0 5.7 30.7 57.7 PVF-RPP2 8.3 6.0 5.0 85.7 62.0 85.3 4.0 4.3 30.7 55.7 STELLAR 4GL 7.7 5.0 6.3 88.3 56.3 78.3 4.0 4.7 28.3 58.3 ALPHA CENTAURI 6.7 3.7 5.0 72.7 53.0 78.0 4.0 4.3 16.0 39.7 BAR LP 22174 7.0 5.0 7.3 85.7 46.0 84.7 4.0 4.3 33.0 68.0 DARK MATTER 7.0 4.0 4.3 77.7 38.3 61.7 4.3 4.7 30.7 59.3 KARMA 7.3 3.7 5.3 74.7 61.3 61.3 4.0 3.3 16.7 39.7 LINN 7.0 4.7 6.0 55.7 46.3 67.7 3.0 3.3 22.0 38.3 MRSL-PR22 6.7 3.7 4.7 74.3 39.0 65.3 4.0 5.0 28.7 57.0 PPG-PR 661 7.3 6.0 5.3 70.7 53.7 77.7 4.0 4.3 21.0 45.0 PST-2SPF 8.0 5.3 6.0 73.3 56.3 63.7 3.3 3.7 26.3 46.7 DLF-PR-3728 6.7 4.7 4.7 59.0 52.0 67.0 3.7 4.0 20.3 41.3 SEPR-2013 8.0 2.7 5.0 68.3 53.3 68.0 4.3 4.0 21.3 47.7 LSD VALUE 2.6 1.9 2.3 32.3 17.2 27.4 2.3 2.5 18.6 28.1 C.V. (%) 14.8 19.4 19.7 13.5 14.7 15.0 15.0 21.2 32.1 21.4 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 IA1 SANDY CLAY LOAM 7.1-7.5 0-60 0-150 2.1-3.0 FULL SUN 2.1-2.5 TO PREVENT DORMANCY