The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2010 as a part of the NTEP program. It contains 88 perennial ryegrass cultivars

Christians, Nick E.

Simons, Zachary A.

Strey, Daniel J.

English

The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2010 as a part of the NTEP program. It contains 88 perennial ryegrass cultivars.</p

Simons, Zachary

Christians, Nick

Strey, Daniel

Digital Repository @ Iowa State University (ISU)

Iowa State University, Horticulture Research Station ISRF12-36 	   58 Perennial Ryegrass Cultivar Study  RFR-A1220  Zach Simons, graduate student Nick Christians, university professor Dan Strey, research associate Department of Horticulture  Introduction The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2010 as a part of the NTEP program. It contains 88 perennial ryegrass cultivars.  Materials and Methods The individual plots measure 5 ft by 5 ft and the study is replicated three times. Genetic color ratings were conducted in June, red thread ratings were conducted in July, and gray leaf spot ratings were conducted in September. Quality ratings were conducted monthly in 2012. Ratings are based on a scale of 9 = best quality and 1 = lowest quality. A rating of six or above is considered to be acceptable.   Results and Discussion Table 1 contains genetic color ratings, red thread ratings, gray leaf spot ratings, and quality ratings for the 2012 season. The mean quality rating was calculated for each cultivar. We will continue to take data for two more years. The data is also submitted to NTEP each year and it will be included in their yearly report with data from all of the other states that are conducting this trial. Their data can be accessed at ntep.org.  Acknowledgements Appreciation is extended to the NTEP organization for funding to conduct this project.  Iowa State University, Horticulture Research Station ISRF12-36 	   59 	  Table 1. Perennial ryegrasses quality ratings for 2012.     Qualitya   Cultivar Genetic Color Red Thread Gray Leaf Spot April May June July August Sept October Mean q 1 Rinovo 6 4 6 5 6 6 5 5 5 4 6 2 CL 11601 6 5 4 7 7 6 6 5 4 5 7 3 PR 909 6 5 4 6 6 7 6 5 5 5 7 4 CL 11701 6 5 4 6 7 6 6 6 5 5 7 5-Apr-36 6 4 5 6 6 5 5 5 5 6 6 6 Linn 4 6 4 4 4 4 5 3 4 4 5 7 Uno 6 4 3 6 6 6 5 4 3 4 6 8 DLF LGD-3026 6 4 3 5 6 5 4 5 3 3 5 9 DLF LGD-3022 6 5 4 6 7 6 6 5 4 4 7 10 PSRX-S84 6 5 4 6 6 7 5 5 4 4 6 11 SRX-4RHD 6 7 5 6 7 5 7 6 5 6 7 12 P02 6 6 3 6 5 6 6 5 4 4 6 13 S85 6 5 6 7 7 8 6 6 6 5 7 14 LTP-RAE 6 5 4 5 6 5 6 5 4 4 6 15 Allante 6 4 4 5 6 6 6 4 4 4 6 16 Insight 6 3 3 5 5 5 4 3 3 4 5 17 Sienna 6 4 4 4 6 5 5 4 4 4 5 18 Brightstar SLT 6 3 2 6 6 6 5 5 3 4 6 19 CL 307 6 4 4 6 6 7 6 5 5 5 7 20-Apr-20 7 5 4 7 7 6 7 6 5 5 7 21-Apr-38 6 5 4 6 6 6 6 5 5 5 7 22 PPG-PR 121 7 5 5 6 7 6 6 5 5 5 7 23 PPG-PR 128 6 5 5 6 6 5 5 6 5 5 6 24 PPG-PR 133 6 6 4 5 6 6 7 5 4 5 6 25 PPG-PR 134 6 5 4 5 6 6 7 5 5 5 7 26 LTP-PR 135 6 5 4 5 6 6 6 5 4 5 6 27 PPG-PR 136 7 5 4 6 6 7 6 6 4 4 6 28 PPG-PR 137 6 5 5 6 6 6 6 6 5 5 7 29 PPG-PR 138 7 4 4 6 6 6 5 5 5 5 6 30 PPG-PR 140 6 5 4 6 7 7 6 6 4 6 7 31 PPG-PR 142 6 5 3 6 7 6 5 5 4 5 6 32 PPG-PR 143 6 5 4 5 6 6 5 6 4 5 6 33 PPG-PR 164 6 5 5 6 5 6 6 5 5 5 6 34 PPG-PR 165 7 5 3 6 6 7 5 5 4 5 6 35 BAR Lp 10969 6 6 5 6 7 6 6 6 5 6 7 36 BAR Lp 10972 7 4 5 5 7 6 4 5 5 4 6 37 BAR Lp 10970 6 5 3 6 7 6 5 6 4 4 6 Iowa State University, Horticulture Research Station ISRF12-36 	   60 Table 1. Perennial ryegrasses quality ratings for 2012 (continued).     Qualitya   Cultivar Genetic Color Red Thread Gray Leaf Spot April May June July August Sept October Mean q 38 2NJK 6 4 4 6 6 6 5 5 4 5 6 39 BAR Lp 7608 5 4 4 5 6 6 5 5 4 6 6 40 Pinnacle 5 5 4 6 5 6 6 5 4 5 6 41 APR 2445 7 5 4 6 6 5 6 4 4 5 6 42 Fiesta 4 6 4 5 6 6 6 5 5 5 5 6 43 GO-G37 8 4 6 6 6 5 5 5 6 5 6 44 CS-20 8 4 6 7 7 6 5 6 6 6 7 45 ISG-36 8 4 4 6 6 6 5 5 4 5 6 46 ISG-31 8 4 4 6 6 6 5 6 5 5 6 47 A-35 9 5 6 5 5 5 5 7 6 5 6 48 CS-PR66 6 4 4 6 6 6 5 5 4 4 6 49 CST 6 6 4 5 6 6 7 6 4 6 7 50 JR-178 6 5 4 6 7 6 5 5 4 4 6 51 JR-192 6 4 3 6 6 5 4 5 3 4 6 52 PSRX-3701 7 4 3 6 7 6 6 5 4 5 6 53 Pick 10401 6 5 4 6 6 7 6 6 5 6 7 54 Mach I 7 3 4 6 6 6 5 5 4 4 6 55 RAD-PR62 6 6 7 6 5 6 6 7 6 6 7 56 RAD-PR55R 7 4 4 6 7 6 5 6 4 5 6 57 IS-PR 409 7 4 3 5 6 6 4 4 3 5 6 58 IS-PR 463 7 5 4 6 7 7 5 5 4 4 6 59 IS-PR 469 6 5 3 7 7 7 6 5 3 5 7 60 IS-PR 479 7 4 4 5 6 5 5 5 4 4 6 61 IS-PR 487 6 6 4 6 6 6 7 5 5 6 7 62 IS-PR 488 6 3 3 6 6 5 4 5 3 4 6 63 IS-PR 489 6 5 4 6 7 6 6 5 5 5 7 64 IS-PR 491 7 4 4 6 7 6 6 6 4 5 7 65 IS-PR 492 6 5 4 6 6 6 6 5 4 5 7 66 DLF LGT 4182 7 5 6 6 6 6 5 6 6 6 7 67 ISG-30 8 4 5 6 6 6 6 6 5 5 7 68 PST-204D 6 5 5 6 6 6 5 6 5 5 7 69 PST-2NKM 6 5 4 6 6 6 7 5 4 5 7 70 PST-2DR9 6 4 5 6 6 6 6 5 5 6 6 71 PST-2MG7 6 5 5 7 7 7 6 6 5 6 7 72 PST-2TQL 6 5 4 6 6 6 6 6 5 5 7 73 PST-2AG4 6 4 2 7 6 7 5 6 4 4 7 74 PST-2MAGS 6 3 2 6 5 5 5 5 3 4 5 75 PST-2K9 6 3 5 6 6 6 4 6 6 6 7 Iowa State University, Horticulture Research Station ISRF12-36 	   61 Table 1. Perennial ryegrasses quality ratings for 2012 (continued).     Qualitya   Cultivar Genetic Color Red Thread Gray Leaf Spot April May June July August Sep. October Mean q 76 PST-2BNS 6 6 5 6 6 7 7 6 5 6 7 77 PST-2ACR 7 4 4 7 7 7 5 5 4 5 7 78 Rio Vista 7 5 5 6 6 7 6 5 5 5 7 79 Octane 6 5 3 5 7 6 6 5 4 5 6 80 Bonneville 6 5 5 6 6 6 6 5 5 5 7 81 PSRX-4CAGL 7 3 3 6 6 6 3 5 4 4 6 82 GO-DHS 8 3 5 6 6 5 5 6 5 5 6 83 GO-PR60 7 5 5 6 6 6 6 5 5 5 6 84 GM3 6 4 4 5 5 5 5 4 4 4 6 85 PRX-4GM1 6 4 4 6 6 6 5 5 4 4 6 86 SRX-4MSH 6 5 4 6 6 5 5 5 4 5 6 87 Pick 4DFHM 6 4 5 5 6 6 5 5 5 5 6 88 Palmer V 6 4 4 5 6 6 5 4 5 4 6 LSD 0.05 1 2 NS NS NS NS 1 2 2 2 1 AQuality rated on a 1 to 9 scale with 9 = best quality, 1 = lowest quality, and 6 = lowest commercially acceptable.   

Perennial Ryegrass Cultivar Study

https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=2914&amp;context=farms_reports

Perennial Ryegrass Cultivar Study

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