TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR EACH MONTH GROWN AT NINETEEN LOCATIONS IN THE UNITED STATES 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) 6.0 6.0 5.9 6.3 6.4 6.0 6.1 6.1 5.9 6.3 6.6 6.0 6.2 PST-M2E (MAN. II W/E) 6.0 5.7 5.7 6.4 6.4 6.0 6.1 6.1 6.1 6.6 7.4 6.3 6.2 SR 4000 5.3 5.3 5.2 6.3 6.2 6.2 6.2 6.2 5.8 6.8 6.7 6.7 6.2 PICK 300 (BLAZER II) 4.7 5.5 5.9 6.4 6.5 6.1 5.7 6.1 5.9 6.1 6.3 7.0 6.1 PST-259 (COMMANDER) 6.3 5.8 5.7 6.4 6.3 6.0 6.2 6.0 6.0 6.1 7.1 6.3 6.1 PST-2H7 (DIMENSION) 6.0 6.0 5.9 6.5 6.3 5.9 6.0 6.1 5.9 6.5 7.1 7.3 6.1 SR 4100 5.3 5.0 5.2 6.2 6.3 6.2 6.4 5.9 5.6 6.4 6.5 5.7 6.1 REPELL 6.0 5.3 5.9 6.0 6.5 6.2 6.0 5.9 5.8 6.4 6.3 5.3 6.1 PICK 600 (FIESTA II) 5.7 5.8 6.0 6.3 6.1 5.9 5.6 6.1 5.8 6.1 6.5 6.0 6.0 OMEGA II 6.3 5.5 5.3 6.1 6.1 5.8 6.0 6.0 5.6 6.2 6.7 7.0 6.0 PICK 647 (RIVIERA) 5.7 5.8 5.7 6.1 6.2 6.0 5.8 5.9 5.7 6.1 6.2 5.3 5.9 PENNANT 6.0 5.7 5.7 5.9 6.1 5.9 6.1 5.9 5.7 5.9 6.1 5.7 5.9 MANHATTAN II 6.3 5.8 5.8 6.1 6.2 5.8 5.8 5.7 5.8 6.1 6.5 6.3 5.9 PST-250 (COMPETITOR) 5.7 5.7 5.5 6.4 6.2 5.8 5.7 5.8 5.8 6.1 6.5 7.3 5.9 PST-2HH (CHARGER) 5.7 5.7 5.7 6.1 5.9 5.8 5.9 6.1 5.8 6.3 6.6 7.0 5.9 PICK 715 (EDGE) 5.3 5.3 5.2 6.1 5.9 5.8 5.8 5.8 5.7 6.1 6.3 7.3 5.9 PALMER 5.7 5.5 6.2 5.9 6.0 5.9 5.7 6.0 5.6 6.0 6.1 5.7 5.9 PICK 233 (DASHER II) 5.7 5.8 5.2 6.1 6.1 5.9 5.8 5.7 5.5 6.4 6.7 6.7 5.9 CITATION II 6.7 6.0 5.5 6.4 6.0 5.6 5.5 5.6 5.5 6.1 6.3 6.0 5.8 ISI-851 (LINDSAY) 5.3 5.2 5.1 6.1 5.9 5.6 5.5 5.7 5.8 6.3 6.3 6.3 5.8 PST-2DD 6.7 5.7 5.6 5.9 6.2 5.9 5.7 5.5 5.7 6.3 6.9 6.7 5.8 PRELUDE 5.7 5.2 5.8 6.0 5.8 5.6 5.6 5.7 5.6 5.8 6.3 6.0 5.8 GATOR 5.3 5.3 5.3 5.9 6.2 5.7 5.2 5.6 5.5 6.0 6.1 5.7 5.7 ALLAIRE 4.7 5.0 5.5 6.1 5.7 5.8 5.6 5.6 5.5 5.7 5.8 6.0 5.7 PSU-333 5.0 5.0 5.4 5.7 5.8 5.5 5.7 5.6 5.5 5.7 5.5 5.3 5.7 KWS-AL-2 (AQUARIUS) 5.3 6.0 5.1 6.1 5.8 5.8 5.3 5.4 5.5 5.9 6.3 7.3 5.7 CALIENTE 4.7 5.0 5.5 5.8 5.9 5.5 5.7 5.5 5.5 5.5 5.3 5.7 5.7 TARA 5.7 5.5 5.7 5.9 5.7 5.6 5.5 5.9 5.3 5.8 5.7 5.3 5.6 GOALIE 5.0 5.5 5.5 5.6 5.7 5.4 5.7 5.7 5.5 5.5 5.5 5.0 5.6 RUNAWAY 5.3 5.0 5.3 5.9 6.0 5.5 5.4 5.4 5.2 5.9 5.6 5.0 5.6 PATRIOT 4.7 5.2 5.1 5.9 5.6 5.5 5.7 5.5 5.4 5.9 5.9 5.3 5.6 BIRDIE II 6.3 6.0 5.1 5.8 5.7 5.5 5.7 5.5 5.4 6.0 5.9 6.3 5.6 PSU-222 4.7 5.2 5.4 5.6 5.6 5.6 5.6 5.5 5.2 5.7 5.3 5.0 5.6 RODEO 4.3 4.7 5.1 5.7 5.7 5.6 5.6 5.5 5.1 5.8 5.8 5.7 5.6 BAR LP 410 (BARRAGE) 4.7 5.2 5.2 6.0 5.8 5.4 5.5 5.2 5.4 6.0 5.2 5.3 5.6 246 5.3 5.2 5.5 6.0 5.6 5.3 5.3 5.1 5.6 6.0 6.4 6.7 5.6 BELLE 4.7 4.5 5.4 5.7 5.8 5.5 5.5 5.4 5.2 5.5 4.9 4.7 5.5 RANGER 6.0 5.3 5.3 5.4 5.9 5.4 5.3 5.5 5.5 5.6 5.7 5.7 5.5 DERBY 5.0 4.8 5.0 5.6 5.6 5.5 5.6 5.3 5.0 5.6 5.3 5.0 5.5 BARRY 6.0 5.8 5.1 5.6 6.0 5.5 5.4 5.4 5.1 5.8 5.6 5.7 5.5 ACROBAT 4.7 4.3 5.3 5.4 5.7 5.2 5.1 5.5 5.3 5.8 5.2 4.7 5.5 REGAL 4.0 4.2 5.1 5.6 5.6 5.6 5.6 5.3 5.1 5.6 5.3 5.3 5.4 SR 4031 (NOVA) 5.3 5.2 5.1 5.9 5.6 5.3 5.3 5.3 5.2 5.6 5.9 5.3 5.4 YORKTOWN II 6.3 5.5 5.6 5.2 5.6 5.5 5.6 5.3 5.1 5.7 5.4 6.3 5.4 RIVAL 4.3 4.7 5.1 5.3 5.6 5.6 5.3 5.3 5.3 5.7 4.7 4.7 5.4 TABLE 2. MEAN TURFGRASS QUALITY RATINGS OF PERENNIAL RYEGRASS CULTIVARS FOR (continued) EACH MONTH GROWN AT NINETEEN LOCATIONS IN THE UNITED STATES 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 RONJA 5.3 5.2 5.1 5.8 5.8 5.5 5.0 5.1 5.1 5.8 5.1 5.3 5.4 VINTAGE-2DF 4.0 4.8 5.1 5.4 5.5 5.1 5.2 5.0 5.2 5.9 5.6 5.3 5.3 MOM LP 763 (TORONTO) 5.0 4.8 5.2 5.2 5.6 5.3 5.3 5.3 5.1 5.6 4.5 5.7 5.3 DEL 946 4.7 4.7 5.4 5.4 5.5 5.3 5.2 5.2 5.1 5.3 4.3 5.3 5.3 DIPLOMAT 5.7 5.2 5.9 5.2 5.4 5.2 5.2 5.1 4.8 5.3 4.9 5.3 5.3 SHERIFF 5.0 5.2 5.5 5.4 5.4 5.1 5.3 5.0 5.1 5.5 5.1 5.3 5.3 PAVO 4.0 5.0 5.1 5.1 5.6 5.2 5.3 5.0 5.1 5.6 4.7 4.3 5.3 NK 80389 5.3 5.2 5.1 5.1 5.4 5.2 5.2 5.3 4.9 5.6 5.2 6.3 5.3 BAR LP 454 (BARCREDO) 5.3 4.8 4.7 5.5 5.6 5.3 5.1 5.3 5.0 6.0 4.6 4.7 5.3 OVATION 4.7 4.3 4.9 5.3 5.5 5.2 5.1 5.0 4.9 5.7 4.9 4.7 5.2 BRENDA 4.7 4.5 5.1 5.1 5.3 5.1 5.3 5.1 5.1 5.3 4.9 4.3 5.2 MANHATTAN 5.0 5.2 5.6 5.3 5.5 5.3 5.1 4.9 5.0 5.2 4.5 5.0 5.2 ISI-K2 (DILLON) 5.0 5.0 4.5 5.5 5.4 5.1 5.1 4.8 4.8 5.6 4.7 4.7 5.2 PENNFINE 4.3 4.7 4.7 5.4 5.3 5.2 5.2 5.0 4.9 5.2 4.3 4.7 5.2 DELRAY 5.0 4.8 4.7 5.1 5.0 5.0 5.2 5.0 4.8 5.2 4.4 4.7 5.1 COWBOY 5.0 5.3 4.6 5.2 5.2 4.8 5.1 5.1 4.8 5.4 5.4 6.0 5.1 REGENCY 4.7 4.8 5.1 5.0 5.3 5.1 5.2 5.0 4.8 5.6 4.5 5.0 5.1 J208 4.7 4.8 4.9 5.0 5.7 5.1 4.8 5.0 4.8 5.5 5.0 5.0 5.1 J207 4.7 4.7 5.0 5.3 5.4 5.1 5.1 4.8 4.7 5.5 4.2 4.3 5.1 LINN 2.0 2.8 3.4 3.3 4.0 3.5 3.7 3.1 3.7 3.8 2.4 2.7 3.5 LSD VALUE 1.1 0.8 1.0 0.5 0.6 0.5 0.6 0.7 0.7 0.7 0.8 1.7 0.4 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).