TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT TWENTY-TWO LOCATIONS IN THE U. S. AND CANADA 1987 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 6.3 6.0 5.8 6.6 6.2 6.4 6.3 6.2 6.6 6.6 6.9 5.3 6.4 PICK 647 5.7 5.8 5.6 6.2 6.3 6.3 6.3 6.1 6.6 6.6 6.9 5.4 6.3 SR 4000 6.3 6.0 5.5 6.3 6.4 6.4 6.3 6.0 6.5 6.5 7.1 5.2 6.3 PST-2H7 5.7 5.6 5.6 6.4 6.4 6.4 6.3 5.9 6.5 6.6 7.1 5.7 6.3 PICK 600 (FIESTA II) 6.3 5.7 5.6 6.2 6.3 6.4 6.2 5.9 6.6 6.6 7.0 5.3 6.3 TARA 6.0 5.8 5.8 6.3 6.5 6.5 6.2 5.8 6.2 6.5 6.8 5.6 6.3 PST-M2E 5.7 5.4 5.5 6.3 6.3 6.5 6.3 6.0 6.3 6.6 6.9 5.3 6.3 KWS-AL-2 (AQUARIUS) 6.0 5.9 5.5 6.8 6.7 6.5 5.7 5.4 6.3 6.5 7.1 5.1 6.2 OMEGA II 6.3 6.2 5.6 6.3 6.4 6.5 6.2 6.0 6.3 6.4 6.9 5.6 6.2 PST-2DD 5.7 5.7 5.4 6.5 6.8 6.6 6.0 5.4 6.3 6.5 7.2 5.4 6.2 PICK 233 (DASHER II) 6.7 5.9 5.5 6.1 6.1 6.2 6.1 5.9 6.2 6.5 7.0 4.8 6.2 PST-2HH 6.7 6.1 5.5 6.4 6.2 6.2 6.0 6.0 6.3 6.4 6.8 5.2 6.2 MANHATTAN II 6.3 5.7 5.6 6.4 6.2 6.4 6.0 5.7 6.2 6.4 6.7 5.2 6.2 PENNANT 5.7 6.0 5.6 6.2 5.9 6.1 6.3 6.1 6.3 6.4 6.7 4.9 6.2 PST-250 (COMPETITOR) 6.0 5.9 5.6 6.6 6.5 6.3 5.9 5.6 6.3 6.3 6.7 5.0 6.2 REPELL 6.3 6.0 5.8 6.4 6.3 6.4 6.0 5.7 6.0 6.3 6.7 5.0 6.1 SR 4100 5.7 5.6 5.3 6.3 6.0 6.3 6.1 6.0 6.5 6.4 6.6 5.2 6.1 PALMER 6.0 6.2 5.6 6.1 5.8 6.3 6.1 6.0 6.4 6.5 6.7 5.8 6.1 PICK 300 (BLAZER II) 6.7 5.6 5.2 6.3 6.4 6.3 5.7 5.8 6.4 6.5 6.7 5.0 6.1 CITATION II 6.7 6.1 5.8 6.3 5.9 6.1 5.9 5.8 6.0 6.4 6.5 5.4 6.1 ISI-851 (LINDSAY) 7.0 6.1 5.2 6.3 6.3 6.1 6.0 5.5 5.9 6.3 6.5 4.8 6.1 PST-259 (COMMANDER) 6.3 5.8 5.6 6.3 6.0 6.2 6.0 6.0 6.1 6.3 6.4 5.0 6.1 ALLAIRE 5.7 6.1 5.9 6.4 6.3 6.4 5.8 5.2 5.9 6.4 6.8 4.3 6.1 PRELUDE 6.3 5.9 5.4 6.1 5.7 6.1 5.9 5.7 6.1 6.5 6.8 5.0 6.0 PICK 715 6.3 6.0 5.5 6.0 6.0 6.0 5.9 5.9 6.1 6.2 6.6 5.0 6.0 GATOR 5.3 5.7 5.6 6.2 6.3 6.2 5.5 5.6 6.0 6.4 6.4 5.1 6.0 RODEO 6.3 6.2 5.5 6.1 6.1 6.3 5.5 5.3 6.0 6.2 6.8 4.7 6.0 PATRIOT 6.7 5.8 5.3 6.2 5.9 6.0 5.6 5.4 6.1 6.2 6.8 4.7 5.9 BAR LP 410 5.0 5.6 5.2 6.2 6.1 6.0 5.6 5.5 5.8 6.1 6.1 4.9 5.9 DERBY 6.0 5.6 5.6 6.0 5.7 6.1 5.8 5.6 5.8 6.1 6.3 4.7 5.9 GOALIE 5.3 5.4 5.4 5.9 5.5 5.9 5.9 5.6 6.0 6.1 6.4 4.8 5.9 BELLE 5.7 5.2 5.2 6.0 5.8 6.0 5.7 5.4 5.9 6.2 6.4 5.1 5.9 RANGER 5.7 5.2 5.1 5.6 5.8 6.0 5.6 5.3 5.9 6.2 6.6 4.7 5.9 246 7.0 5.8 5.5 6.2 5.8 5.6 5.5 5.3 5.9 6.2 6.7 5.3 5.8 PSU-222 5.3 5.7 5.4 6.0 5.7 6.0 5.6 5.4 5.7 6.0 6.5 5.3 5.8 YORKTOWN II 5.7 5.8 5.5 5.9 5.9 6.1 5.6 5.1 5.6 6.0 6.4 5.4 5.8 BIRDIE II 6.7 5.8 5.3 5.6 5.3 5.9 5.8 5.8 5.9 6.1 6.4 5.1 5.8 SR 4031 5.7 4.9 5.0 5.8 5.5 5.8 5.7 5.4 5.9 6.1 6.7 4.8 5.8 PSU-333 6.3 5.3 5.3 5.8 5.7 6.0 5.6 5.4 5.8 5.9 6.3 5.3 5.8 RUNAWAY 6.0 5.6 5.1 6.0 5.9 5.9 5.4 5.3 5.6 6.0 6.1 5.2 5.8 ACROBAT 5.0 5.3 5.0 5.6 5.9 5.8 5.4 5.3 5.8 6.0 6.3 4.4 5.7 CALIENTE 5.7 5.7 4.8 5.5 5.3 5.8 5.9 5.6 5.9 5.9 6.3 5.2 5.7 MOM LP 763 5.7 5.7 5.2 5.6 5.5 5.8 5.5 5.0 5.6 6.1 6.1 4.8 5.7 DIPLOMAT 6.0 6.1 5.4 5.5 5.7 5.8 5.3 5.1 5.5 5.9 6.3 5.0 5.7 REGAL 6.0 5.7 5.2 6.0 5.5 5.9 5.5 5.4 5.6 5.8 6.0 5.0 5.7 BAR LP 454 5.3 5.7 5.0 5.2 6.1 6.1 5.2 4.9 5.6 6.0 6.2 4.7 5.7 NK 80389 5.7 5.9 5.4 5.8 6.3 6.0 5.1 4.7 5.3 5.9 6.2 5.2 5.7 ISI-K2 (DILLON) 6.0 5.9 5.0 5.8 5.8 5.8 5.2 5.0 5.5 5.8 6.0 4.7 5.6 BRENDA 4.3 5.1 5.0 5.6 5.3 5.8 5.5 5.1 5.6 5.9 6.2 5.0 5.6 REGENCY 5.3 5.7 5.1 5.6 5.3 5.7 5.2 5.1 5.5 5.9 6.2 5.3 5.6 TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR (CONT'D) EACH MONTH GROWN AT TWENTY-TWO LOCATIONS IN THE U. S. AND CANADA 1987 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF: MONTHS NAME JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN RONJA 5.7 5.9 4.9 5.4 6.3 6.0 4.9 4.7 5.5 5.8 6.0 4.3 5.6 OVATION 5.7 5.0 4.9 5.4 5.8 5.6 5.2 5.0 5.4 5.9 6.0 4.3 5.6 BARRY 5.7 5.4 5.0 5.4 5.9 5.9 5.2 4.9 5.5 5.9 6.2 5.0 5.5 VINTAGE-2DF 6.7 5.4 5.0 5.5 5.5 5.7 5.4 5.1 5.3 5.7 6.1 4.9 5.5 PENNFINE 4.7 4.8 5.0 5.5 5.3 5.9 5.4 5.1 5.4 5.8 5.9 4.7 5.5 SHERIFF 6.3 5.2 4.8 5.4 5.3 5.5 5.3 5.2 5.7 6.0 6.2 4.7 5.5 DEL 946 3.3 4.2 4.7 5.3 5.1 5.7 5.5 5.5 5.6 5.9 5.6 4.9 5.5 RIVAL 4.7 4.4 4.2 4.9 5.7 5.8 5.4 5.0 5.7 5.8 6.0 4.8 5.5 MANHATTAN 5.7 5.7 5.3 5.7 5.9 5.8 5.0 4.5 5.0 5.8 5.9 4.8 5.5 COWBOY 6.3 5.6 5.1 5.3 4.9 5.6 5.6 5.4 5.7 5.7 6.1 4.9 5.5 PAVO 5.7 5.7 5.3 5.5 5.8 5.7 4.8 4.5 5.3 5.7 5.8 4.9 5.4 DELRAY 5.0 4.4 4.9 5.5 5.1 5.6 5.2 5.0 5.5 5.7 5.6 4.2 5.4 J207 3.0 4.8 4.6 5.1 5.7 5.5 4.6 4.5 5.2 5.8 5.5 4.6 5.3 J208 3.0 3.9 4.1 4.4 5.3 5.1 4.6 4.5 5.3 5.7 6.0 4.6 5.1 LINN 4.3 4.1 4.0 3.8 3.9 4.3 3.6 3.4 3.6 4.2 4.1 3.8 4.0 LSD VALUE 1.2 0.9 0.8 0.5 0.5 0.6 0.5 0.7 0.7 0.5 0.6 2.2 0.3 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIS, 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).