TABLE 6. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE 2010 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2011 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC COVER QUALITY RATINGS NAME COLOR FALL MAY JUN JUL AUG SEP OCT MEAN APR 2320 7.7 63.3 5.0 6.3 7.0 7.7 6.7 6.7 6.6 DLF LGD-3022 6.3 73.3 5.3 7.0 6.3 7.7 6.3 7.0 6.6 SIENNA 7.0 63.3 5.0 7.3 6.3 7.0 6.7 6.3 6.4 2NJK 6.0 73.3 5.0 6.3 6.7 6.7 6.3 6.7 6.3 CS-20 8.3 78.3 5.7 6.3 6.7 6.3 6.3 6.7 6.3 IS-PR 469 7.0 56.7 4.7 6.0 6.7 7.0 6.7 7.0 6.3 IS-PR 492 6.3 60.0 5.0 6.3 6.3 6.3 7.0 7.0 6.3 LTP-RAE 6.7 60.0 4.7 6.0 6.3 6.3 7.3 7.0 6.3 S85 6.0 63.3 5.0 6.3 6.0 7.0 6.3 7.0 6.3 CL 307 6.0 76.7 5.3 6.3 6.3 6.3 6.0 7.0 6.2 IS-PR 487 6.0 60.0 5.7 6.3 5.7 6.7 6.3 6.7 6.2 JR-192 6.7 70.0 5.0 6.7 7.0 6.7 6.0 6.0 6.2 PPG-PR 142 6.0 66.7 5.0 6.7 6.3 6.3 6.0 6.7 6.2 SR 4650 (PSRX-3701) 6.0 66.7 5.3 5.7 6.7 5.7 7.0 6.7 6.2 SIDEWAYS (PSRX-S84) 6.0 73.3 5.3 6.7 6.0 5.7 6.3 7.3 6.2 RIO VISTA 6.3 63.3 5.3 6.0 7.0 6.3 6.3 6.0 6.2 BRIGHTSTAR SLT 6.0 83.3 6.0 7.0 5.7 6.3 5.7 6.0 6.1 CL 11601 6.3 70.0 5.7 6.0 6.0 6.3 6.3 6.3 6.1 IS-PR 463 6.3 63.3 4.3 6.0 6.0 6.3 7.0 7.0 6.1 JR-178 6.7 63.3 5.0 5.7 6.0 6.3 6.7 6.7 6.1 LTP-PR 135 6.7 60.0 4.3 6.7 6.0 6.3 6.7 6.7 6.1 PPG-PR 165 6.0 63.3 5.3 7.0 6.0 6.0 6.0 6.0 6.1 HAVEN (APR 2038) 6.0 63.3 5.7 6.3 6.0 6.0 5.7 6.3 6.0 DLF LGD-3026 6.7 70.0 5.3 6.3 6.7 6.0 5.7 6.0 6.0 PST-2ACR 6.3 56.7 5.0 6.0 6.3 5.7 6.7 6.3 6.0 PST-2TQL 6.7 66.7 4.3 5.7 6.3 6.7 6.0 7.0 6.0 BAR LP 10969 6.3 66.7 5.0 6.0 6.0 6.0 6.0 6.3 5.9 BONNEVILLE 6.0 66.7 5.0 6.3 5.7 6.7 6.0 6.0 5.9 CS-PR66 7.3 66.7 5.0 5.3 6.7 6.0 6.0 6.3 5.9 IS-PR 488 6.7 53.3 4.0 6.3 6.3 6.0 6.3 6.3 5.9 IS-PR 489 6.3 70.0 5.0 6.7 6.0 6.3 5.7 6.0 5.9 PRX-4GM1 6.3 63.3 5.0 5.7 5.7 6.0 6.0 7.0 5.9 DOMINATOR (PST-2AG4) 6.0 70.0 5.3 5.7 6.0 6.3 5.7 6.7 5.9 PST-2DR9 6.0 56.7 5.3 6.0 5.7 6.0 5.7 6.7 5.9 PST-2NKM 6.3 73.3 4.3 6.3 6.0 6.7 6.0 6.3 5.9 RAD-PR55R 7.3 63.3 4.3 5.7 6.0 6.3 6.3 6.7 5.9 ALLANTE 6.0 73.3 5.3 6.7 6.3 5.7 5.3 5.7 5.8 IS-PR 491 7.0 66.7 4.3 5.3 6.0 6.3 6.0 6.7 5.8 ISG-36 8.0 63.3 5.3 5.7 6.0 5.7 6.0 6.0 5.8 PPG-PR 121 6.0 63.3 5.0 6.0 6.0 6.3 5.7 5.7 5.8 PPG-PR 133 6.0 63.3 4.7 6.3 5.7 6.7 5.7 5.7 5.8 PIZZAZZ 2 GLR (PR 909) 6.0 70.0 4.7 5.7 5.7 6.0 6.0 6.7 5.8 PST-2MAGS 6.3 73.3 5.0 5.0 6.0 6.3 6.0 6.7 5.8 PST-2MG7 6.0 73.3 5.0 6.0 6.0 6.3 5.7 5.7 5.8 UNO 6.3 73.3 5.0 6.0 6.0 6.7 5.7 5.7 5.8 BAR LP 7608 6.0 60.0 4.7 6.0 6.0 6.7 5.7 5.3 5.7 INSIGHT 6.3 56.7 4.7 6.7 6.0 6.0 5.0 6.0 5.7 TABLE 6. MEAN TURFGRASS QUALITY AND OTHER RATINGS OF PERENNIAL RYEGRASS CULTIVARS IN THE (CONT'D) 2010 NATIONAL PERENNIAL RYEGRASS TEST AT AMES, IA 1/ 2011 DATA TURFGRASS QUALITY AND OTHER RATINGS 1-9; 9=BEST 2/ PERCENT GENETIC COVER QUALITY RATINGS NAME COLOR FALL MAY JUN JUL AUG SEP OCT MEAN OCTANE 7.0 70.0 5.0 5.3 5.7 6.3 5.7 6.0 5.7 PPG-PR 137 6.3 60.0 4.3 5.7 6.0 5.7 5.7 6.7 5.7 PPG-PR 140 6.7 60.0 4.7 5.7 5.3 6.0 6.0 6.3 5.7 PPG-PR 143 7.0 56.7 4.7 6.0 6.0 6.0 5.3 6.0 5.7 RINOVO 6.7 53.3 4.0 5.0 6.0 6.7 6.0 6.3 5.7 SRX-4MSH 6.7 66.7 4.3 6.0 5.7 6.3 5.7 6.0 5.7 SRX-4RHD 6.3 56.7 4.7 5.7 5.7 6.3 5.7 6.3 5.7 BAR LP 10970 7.0 60.0 4.3 5.3 5.7 6.3 6.0 6.0 5.6 PANGEA GLR (CL 11701) 6.3 60.0 4.0 5.0 6.0 6.0 6.0 6.3 5.6 PINNACLE 5.3 70.0 6.0 5.3 6.3 5.7 4.3 5.7 5.6 PPG-PR 136 6.3 60.0 4.3 6.3 5.0 6.0 5.7 6.3 5.6 PPG-PR 164 6.3 63.3 4.3 6.0 5.3 6.0 6.0 6.0 5.6 PSRX-4CAGL 7.0 50.0 4.3 5.3 6.0 5.3 5.7 6.7 5.6 PST-204D 6.3 60.0 4.3 5.7 5.7 6.0 5.7 6.3 5.6 APR 2036 6.7 53.3 4.7 5.3 5.3 5.7 5.3 6.0 5.4 FIESTA 4 6.3 53.3 4.0 5.7 6.0 5.3 5.7 5.7 5.4 IS-PR 409 6.0 45.0 4.0 5.7 5.3 5.3 6.0 6.0 5.4 ISG-31 8.0 60.0 5.0 6.0 5.7 5.3 5.0 5.7 5.4 PPG-PR 138 7.3 43.3 4.7 5.7 5.0 5.7 6.0 5.7 5.4 A-35 8.3 60.0 4.3 5.3 5.7 5.7 5.3 5.3 5.3 APR 2445 7.0 53.3 4.3 4.7 6.0 6.0 5.3 5.7 5.3 SOX FAN (GM3) 6.7 60.0 4.7 5.3 5.0 5.7 5.7 5.3 5.3 GO-PR60 7.3 63.3 4.0 5.3 5.7 5.3 5.7 6.0 5.3 MACH I 7.3 56.7 3.7 5.0 5.7 6.3 5.0 6.3 5.3 PPG-PR 128 6.0 56.7 4.3 5.7 5.0 5.7 5.3 5.7 5.3 PPG-PR 134 6.3 53.3 4.7 4.7 5.3 6.0 5.7 5.7 5.3 DLF LGT 4182 6.7 56.7 4.0 5.7 5.7 5.7 5.0 5.3 5.2 GO-DHS 7.0 63.3 4.7 5.3 5.3 5.0 5.0 5.7 5.2 IS-PR 479 8.0 56.7 4.0 5.0 6.0 5.3 5.0 6.0 5.2 ISG-30 7.7 70.0 4.3 5.7 5.3 5.7 4.7 5.7 5.2 P02 6.0 60.0 4.3 5.7 5.0 5.7 5.3 5.0 5.2 PICK 10401 6.7 50.0 4.3 5.3 5.7 5.7 5.3 5.0 5.2 PST-2BNS 6.3 56.7 4.0 4.7 5.7 6.7 5.3 5.0 5.2 PST-2K9 6.0 53.3 4.3 5.0 5.0 6.3 5.3 5.3 5.2 PALMER V 6.0 60.0 4.3 5.3 5.0 5.7 5.0 5.3 5.1 CST 6.3 53.3 4.3 5.0 5.3 6.0 4.7 4.7 5.0 BAR LP 10972 6.3 46.7 3.3 5.3 5.3 5.7 4.7 5.0 4.9 GO-G37 8.0 50.0 4.3 4.7 6.0 4.7 5.0 5.0 4.9 PICK 4DFHM 6.0 50.0 3.7 5.0 5.3 5.7 4.7 5.0 4.9 RAD-PR62 6.7 53.3 3.7 4.3 5.0 5.7 5.0 5.3 4.8 LINN 5.0 63.3 4.0 4.0 4.0 3.3 3.3 3.7 3.7 LSD VALUE 0.9 56.8 2.8 2.5 4.1 3.1 3.2 3.9 2.8 C.V. (%) 8.2 21.7 18.3 16.0 15.8 15.4 17.4 17.6 13.3 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 A. 2011 LOCATIONS, SITE DESCRIPTIONS AND MANAGEMENT PRACTICES IN THE 2010 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 0-60 241-375 2.1-3.0 FULL SUN 2.6-3.0 TO PREVENT STRESS