TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT THIRTY-ONE LOCATIONS IN THE U. S. AND CANADA 1987-1990 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF: MONTHS 1/ NAME JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN PST-2PM (SATURN) 6.4 6.3 6.2 6.4 6.4 6.1 6.2 6.2 6.4 6.4 6.4 5.6 6.3 SR 4000 5.7 5.7 5.8 6.2 6.3 6.2 6.2 6.0 6.3 6.4 6.4 5.6 6.2 SR 4100 5.7 5.7 5.6 6.2 6.2 6.1 6.2 6.1 6.3 6.4 6.3 5.5 6.2 PST-2H7 (DIMENSION) 6.1 6.0 5.9 6.3 6.3 6.1 6.1 6.0 6.2 6.4 6.5 6.2 6.2 PST-M2E (MAN. II W/E) 5.8 5.9 5.9 6.2 6.3 6.2 6.0 6.0 6.2 6.4 6.5 5.7 6.2 PST-259 (COMMANDER) 6.2 5.9 5.9 6.2 6.3 6.0 6.1 6.0 6.2 6.2 6.2 5.6 6.1 PENNANT 5.6 5.6 5.9 5.9 6.0 6.0 6.1 6.1 6.2 6.3 6.2 5.4 6.1 PICK 600 (FIESTA II) 5.6 5.7 5.8 6.1 6.3 6.1 5.9 5.9 6.2 6.2 6.2 5.6 6.1 PICK 647 (RIVIERA) 5.8 5.7 5.8 6.0 6.3 6.0 6.0 6.0 6.2 6.3 6.2 5.6 6.1 REPELL 5.8 5.8 5.7 6.1 6.4 6.2 5.9 5.8 6.0 6.2 6.2 5.3 6.1 PICK 300 (BLAZER II) 5.7 5.6 5.6 6.2 6.4 6.1 5.8 5.8 6.2 6.2 6.1 5.7 6.1 PALMER 5.9 6.0 6.0 6.0 6.0 6.0 5.9 5.9 6.2 6.3 6.2 5.7 6.1 PST-2HH (CHARGER) 5.8 5.6 5.6 6.1 6.2 6.0 6.0 5.8 6.1 6.2 6.1 5.7 6.0 OMEGA II 6.5 6.2 5.8 6.1 6.3 6.0 6.0 5.8 6.1 6.1 6.1 5.9 6.0 PICK 233 (DASHER II) 6.3 5.9 5.7 6.0 6.1 5.9 5.9 5.9 6.0 6.3 6.4 5.6 6.0 MANHATTAN II 6.2 5.9 5.7 6.1 6.2 6.1 5.8 5.6 5.9 6.1 6.2 5.8 6.0 PST-250 (COMPETITOR) 5.8 5.8 5.8 6.2 6.3 6.0 5.7 5.6 6.0 6.1 6.2 5.7 6.0 PICK 715 (EDGE) 5.6 5.6 5.7 6.0 6.1 5.8 5.9 5.9 6.2 6.2 6.1 5.6 6.0 CITATION II 6.4 6.1 5.8 6.1 6.1 5.8 5.8 5.7 6.0 6.1 6.0 5.6 5.9 PST-2DD 6.4 5.8 5.6 6.1 6.4 6.0 5.7 5.3 6.0 6.2 6.3 5.8 5.9 PRELUDE 5.8 5.7 5.8 6.0 5.9 5.8 5.7 5.7 6.0 6.1 6.2 5.3 5.9 GATOR 5.4 5.7 5.7 6.1 6.3 5.9 5.5 5.6 5.9 6.1 6.0 5.3 5.9 ALLAIRE 5.7 5.6 5.7 6.1 6.1 6.0 5.7 5.4 5.9 6.1 6.1 5.2 5.9 ISI-851 (LINDSAY) 6.2 5.8 5.5 6.1 6.1 5.8 5.7 5.5 5.9 6.1 6.0 5.4 5.9 TARA 6.0 5.8 5.8 5.9 6.1 5.9 5.8 5.6 5.7 5.9 5.9 5.7 5.9 KWS-AL-2 (AQUARIUS) 5.2 5.8 5.6 6.3 6.2 6.0 5.5 5.3 5.8 6.0 6.0 5.7 5.9 GOALIE 5.2 5.4 5.7 5.8 5.7 5.7 5.8 5.8 5.9 6.0 5.8 4.8 5.8 PSU-333 5.5 5.6 5.6 5.8 5.8 5.8 5.8 5.6 5.7 5.8 5.8 5.3 5.8 PATRIOT 5.6 5.6 5.4 5.9 5.9 5.7 5.7 5.4 5.8 6.0 5.9 5.2 5.8 BIRDIE II 6.3 6.0 5.7 5.7 5.7 5.7 5.8 5.7 5.9 6.0 5.9 5.6 5.8 BAR LP 410 (BARRAGE) 5.1 5.6 5.5 6.0 6.1 5.7 5.5 5.4 5.7 5.9 5.6 5.1 5.8 CALIENTE 5.3 5.4 5.4 5.6 5.7 5.7 5.8 5.6 5.8 5.9 5.7 5.3 5.8 RODEO 5.3 5.5 5.4 5.9 6.0 5.9 5.6 5.2 5.7 6.0 5.9 5.2 5.8 RUNAWAY 5.6 5.5 5.5 5.9 6.0 5.7 5.4 5.3 5.5 5.9 5.7 5.3 5.7 PSU-222 5.3 5.7 5.6 5.7 5.8 5.8 5.6 5.3 5.6 5.7 5.7 5.2 5.7 BELLE 5.2 5.4 5.5 5.8 5.8 5.7 5.5 5.4 5.6 5.8 5.8 5.0 5.7 246 6.2 5.8 5.8 6.0 5.7 5.3 5.4 5.3 5.8 6.0 6.1 5.9 5.7 DERBY 5.4 5.3 5.5 5.8 5.7 5.6 5.7 5.5 5.6 5.8 5.6 5.0 5.7 RANGER 5.6 5.5 5.5 5.5 5.9 5.7 5.5 5.3 5.7 5.7 5.7 5.2 5.7 SR 4031 (NOVA) 5.4 5.4 5.4 5.8 5.6 5.5 5.6 5.4 5.7 5.8 5.8 5.2 5.6 REGAL 5.4 5.4 5.5 5.7 5.6 5.7 5.7 5.4 5.6 5.7 5.6 5.2 5.6 ACROBAT 5.2 5.2 5.3 5.6 5.9 5.4 5.3 5.3 5.6 5.7 5.6 4.8 5.6 YORKTOWN II 5.8 5.8 5.5 5.4 5.7 5.7 5.4 5.2 5.4 5.6 5.7 5.7 5.6 RIVAL 4.5 5.0 5.1 5.3 5.8 5.7 5.4 5.3 5.6 5.7 5.3 4.9 5.6 MOM LP 763 (TORONTO) 5.1 5.4 5.4 5.4 5.7 5.6 5.4 5.2 5.5 5.7 5.4 5.0 5.5 TABLE 2. (continued) MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT THIRTY-ONE LOCATIONS IN THE U. S. AND CANADA 1987-1990 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF: MONTHS NAME JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN PENNFINE 4.9 5.1 5.3 5.4 5.5 5.6 5.6 5.3 5.4 5.6 5.3 4.7 5.5 BAR LP 454 (BARCREDO) 5.3 5.4 5.3 5.4 5.9 5.6 5.3 5.1 5.4 5.6 5.3 4.9 5.5 BARRY 5.6 5.6 5.2 5.4 5.8 5.6 5.4 5.2 5.5 5.7 5.6 5.3 5.5 RONJA 5.6 5.5 5.2 5.5 6.0 5.8 5.1 4.9 5.4 5.7 5.5 5.1 5.5 DEL 946 4.7 5.0 5.3 5.5 5.4 5.4 5.4 5.4 5.6 5.7 5.1 4.7 5.5 DIPLOMAT 5.8 5.8 5.5 5.3 5.6 5.5 5.2 5.1 5.4 5.6 5.5 5.2 5.5 BRENDA 5.3 5.1 5.4 5.5 5.4 5.4 5.4 5.2 5.5 5.6 5.4 5.1 5.5 OVATION 4.8 4.9 5.1 5.4 5.7 5.5 5.3 5.1 5.4 5.6 5.4 4.7 5.5 NK 80389 5.4 5.8 5.4 5.4 5.9 5.6 5.3 5.0 5.2 5.5 5.4 5.5 5.5 VINTAGE-2DF 5.6 5.6 5.4 5.4 5.5 5.3 5.3 5.2 5.5 5.6 5.5 5.1 5.5 ISI-K2 (DILLON) 5.4 5.4 5.1 5.5 5.7 5.4 5.2 5.0 5.4 5.5 5.3 5.0 5.4 SHERIFF 5.5 5.5 5.2 5.4 5.5 5.3 5.3 5.1 5.4 5.6 5.5 5.0 5.4 REGENCY 5.4 5.5 5.3 5.3 5.4 5.3 5.3 5.1 5.4 5.6 5.3 5.0 5.4 DELRAY 5.3 5.2 5.1 5.4 5.4 5.3 5.3 5.2 5.4 5.4 5.0 4.6 5.4 MANHATTAN 5.2 5.2 5.2 5.4 5.7 5.4 5.1 4.7 5.1 5.3 5.3 5.0 5.3 COWBOY 5.8 5.6 5.3 5.3 5.1 5.2 5.3 5.2 5.4 5.5 5.3 5.3 5.3 PAVO 4.9 5.4 5.2 5.3 5.7 5.3 5.1 4.9 5.3 5.3 5.0 4.8 5.3 J207 4.7 5.0 5.0 5.1 5.5 5.3 4.9 4.8 5.1 5.3 4.9 4.8 5.2 J208 4.8 4.8 4.9 4.9 5.5 5.2 4.9 4.8 5.2 5.4 5.3 4.9 5.2 LINN 3.6 4.1 3.8 3.5 3.8 3.7 3.7 3.4 3.8 3.8 3.5 3.5 3.7 LSD VALUE 1.1 0.7 0.4 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.4 0.9 0.2 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).