TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT TWENTY-FOUR LOCATIONS IN THE UNITED STATES 1989 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) 7.0 5.7 6.2 6.4 6.3 6.2 6.2 6.1 6.4 6.4 6.2 5.8 6.4 SR 4100 5.3 4.7 5.6 6.3 6.3 6.2 6.3 6.3 6.6 6.6 6.1 5.5 6.3 PENNANT 5.3 4.3 6.0 5.8 6.0 6.2 6.1 6.1 6.5 6.4 6.1 5.8 6.2 SR 4000 5.7 4.3 5.9 6.0 6.2 6.4 6.1 5.9 6.6 6.3 6.1 5.8 6.2 PST-M2E (MAN. II W/ ENDO) 6.0 5.3 5.9 6.0 6.4 6.2 5.9 5.9 6.4 6.3 6.3 6.2 6.2 PST-259 (COMMANDER) 7.0 5.7 5.9 5.9 6.3 6.0 6.1 6.2 6.4 6.2 5.9 5.7 6.2 PST-2H7 (DIMENSION) 6.3 5.0 5.5 6.2 6.3 6.1 6.0 5.9 6.3 6.3 6.1 6.5 6.2 PALMER 6.0 5.3 5.8 6.0 6.1 6.0 5.9 5.5 6.3 6.4 6.3 5.7 6.1 PICK 715 5.7 4.7 6.0 5.9 6.2 6.0 5.9 5.8 6.4 6.3 5.9 5.8 6.1 PICK 647 (RIVIERA) 6.0 4.3 5.4 5.7 6.3 5.9 5.8 5.9 6.2 6.1 5.9 5.8 6.1 PST-2HH (CHARGER) 6.0 5.0 5.3 5.8 6.2 6.0 5.9 5.6 6.5 6.1 5.8 5.8 6.1 PICK 233 (DASHER II) 6.3 5.0 5.6 5.9 6.1 5.9 5.9 5.9 6.2 6.2 6.0 6.2 6.1 PICK 600 (FIESTA II) 5.0 4.3 5.4 5.9 6.4 6.1 5.8 5.7 6.2 6.2 5.6 6.0 6.1 REPELL 5.3 4.7 5.0 6.0 6.4 6.1 5.8 5.6 6.2 6.2 6.1 5.7 6.1 PICK 300 (BLAZER II) 6.0 5.0 5.6 5.9 6.3 6.0 5.8 5.5 6.2 6.0 5.9 5.7 6.0 OMEGA II 7.7 5.7 5.6 6.0 6.3 6.0 5.8 5.5 6.2 6.0 5.6 6.0 6.0 GOALIE 5.3 4.3 5.9 5.7 5.9 5.8 5.8 5.8 5.9 6.0 5.8 5.0 6.0 MANHATTAN II 6.0 4.7 5.3 6.0 6.2 6.1 5.6 5.4 5.9 6.2 6.1 6.3 5.9 CITATION II 6.3 4.3 5.5 6.0 6.3 5.8 5.7 5.7 6.2 6.0 5.6 5.7 5.9 CALIENTE 5.3 4.3 5.6 5.5 5.8 5.9 5.8 5.6 6.0 6.2 5.4 5.0 5.9 PRELUDE 5.7 5.0 5.9 6.0 6.1 5.9 5.6 5.4 6.1 5.9 5.8 5.2 5.9 PSU-333 5.3 4.7 5.4 5.9 5.9 5.9 5.8 5.6 5.8 5.7 5.7 5.2 5.9 BIRDIE II 7.0 6.0 5.8 5.5 5.8 5.7 5.9 5.8 6.1 5.9 5.5 6.0 5.9 PST-250 (COMPETITOR) 6.3 4.7 5.6 5.9 6.1 5.9 5.6 5.5 6.0 5.9 6.0 5.8 5.9 GATOR 5.3 4.3 5.8 6.1 6.4 6.0 5.5 5.5 5.9 5.8 5.7 5.3 5.9 ALLAIRE 7.3 5.7 5.6 5.9 6.2 6.0 5.6 5.2 5.9 5.9 5.8 5.5 5.9 PST-2DD 7.3 5.7 5.2 5.7 6.2 5.8 5.5 5.2 6.1 6.1 5.9 6.0 5.9 ISI-851 (LINDSAY) 6.0 5.0 5.3 5.9 6.0 5.7 5.6 5.2 6.0 6.1 5.8 6.0 5.8 PATRIOT 6.3 4.0 5.3 5.7 6.1 5.6 5.7 5.4 5.8 5.9 5.3 5.7 5.8 246 6.7 5.3 5.9 5.7 5.7 5.4 5.4 5.4 5.9 6.2 5.8 6.2 5.8 REGAL 6.3 5.3 5.7 5.7 5.6 5.8 5.8 5.4 5.8 5.6 5.6 5.2 5.8 BAR LP 410 (BARRAGE) 5.0 4.3 5.3 5.9 6.2 5.8 5.4 5.3 5.7 5.7 5.5 5.2 5.8 TARA 6.0 4.7 5.1 5.7 6.1 5.8 5.5 5.2 5.6 5.6 5.4 6.2 5.8 RUNAWAY 6.3 4.7 5.6 5.7 6.2 5.9 5.4 4.9 5.6 5.7 5.7 5.5 5.7 RIVAL 5.0 4.7 5.5 5.5 6.1 5.7 5.5 5.3 5.6 5.6 5.2 4.8 5.7 PSU-222 5.3 4.7 5.4 5.8 5.8 5.8 5.5 5.1 5.7 5.6 5.5 5.2 5.7 PENNFINE 5.0 4.3 5.3 5.5 5.6 5.8 5.8 5.2 5.7 5.6 5.3 4.7 5.7 BELLE 5.7 5.7 5.2 5.8 5.8 5.7 5.3 5.2 5.6 5.7 5.6 4.8 5.7 SR 4031 (NOVA) 5.3 4.7 5.2 5.9 5.7 5.6 5.6 5.4 5.8 5.7 5.4 5.3 5.7 DERBY 6.7 5.0 5.4 5.6 5.7 5.6 5.6 5.4 5.8 5.7 5.1 5.2 5.7 RODEO 6.0 5.3 5.1 5.7 5.8 5.9 5.5 4.9 5.6 5.8 5.5 5.7 5.6 KWS-AL-2 (AQUARIUS) 5.3 5.0 5.4 6.0 6.0 5.7 5.3 5.0 5.6 5.7 5.4 6.2 5.6 DEL 946 4.7 4.7 5.2 5.7 5.6 5.5 5.3 5.2 5.7 5.7 5.1 4.3 5.6 RANGER 6.0 5.3 5.4 5.5 6.0 5.7 5.3 5.1 5.5 5.4 5.1 5.8 5.6 MOM LP 763 5.3 4.7 5.1 5.5 6.0 5.6 5.3 5.0 5.5 5.5 5.1 5.0 5.6 TABLE 2. (continued) MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT TWENTY-FOUR LOCATIONS IN THE UNITED STATES 1989 DATA TURFGRASS QUALITY RATINGS 1-9; 9=IDEAL TURF: MONTHS NAME JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN BARRY 5.3 4.7 4.5 5.5 5.7 5.7 5.3 5.2 5.7 5.5 5.3 5.5 5.6 DELRAY 6.3 5.3 5.0 5.5 5.7 5.5 5.5 5.2 5.5 5.4 4.9 4.7 5.5 BRENDA 6.7 4.7 5.2 5.4 5.4 5.6 5.5 5.2 5.5 5.5 5.1 5.2 5.5 ACROBAT 5.0 4.0 5.1 5.5 6.1 5.5 5.1 5.0 5.5 5.3 5.2 5.0 5.5 YORKTOWN II 6.0 5.7 5.0 5.2 5.6 5.7 5.2 5.2 5.4 5.4 5.5 6.0 5.5 OVATION 5.3 5.0 5.2 5.5 5.9 5.7 5.2 4.9 5.5 5.5 5.2 4.8 5.5 BAR LP 454 (BARCREDO) 5.7 5.0 5.4 5.7 6.0 5.6 5.3 4.9 5.4 5.3 4.8 5.2 5.5 VINTAGE-2DF 5.7 5.0 5.1 5.2 5.5 5.3 5.3 5.2 5.6 5.4 5.0 5.2 5.5 DIPLOMAT 6.0 5.0 4.9 5.2 5.8 5.5 5.1 4.8 5.3 5.5 5.2 5.3 5.5 RONJA 6.7 5.0 5.3 5.4 6.1 5.7 5.1 4.6 5.5 5.3 5.2 5.5 5.5 SHERIFF 6.0 5.7 5.2 5.5 5.8 5.4 5.2 4.7 5.4 5.4 5.3 5.2 5.4 ISI-K2 (DILLON) 5.3 4.0 4.9 5.3 5.9 5.4 5.2 5.0 5.5 5.2 4.9 5.2 5.4 REGENCY 5.3 5.0 5.2 5.3 5.4 5.4 5.1 5.0 5.3 5.4 4.9 4.8 5.4 NK 80389 5.0 5.0 4.9 5.2 6.0 5.4 5.1 4.6 5.1 5.2 5.1 5.3 5.3 COWBOY 5.7 4.7 5.4 5.2 5.3 5.3 5.2 4.9 5.4 5.4 4.7 5.7 5.3 PAVO 4.7 4.3 4.7 5.2 5.7 5.1 5.1 4.8 5.4 5.1 4.8 4.8 5.3 J208 5.7 4.0 4.9 5.2 5.8 5.5 5.0 4.7 5.2 5.0 5.0 4.7 5.3 MANHATTAN 5.7 4.7 4.4 5.2 5.8 5.3 4.8 4.5 5.0 4.9 5.2 5.3 5.2 J207 5.0 4.3 4.6 5.0 5.7 5.4 4.9 4.7 5.3 5.0 4.7 4.8 5.2 LINN 3.0 3.3 3.4 3.1 3.6 3.6 3.5 3.1 3.9 3.2 3.1 3.0 3.5 LSD VALUE 1.8 1.5 0.9 0.5 0.4 0.5 0.5 0.5 0.7 0.6 0.8 0.7 0.3 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).