statistically similar to the top turfgrass quality scorer. In the Midwest, some significance was noted at three locations, West Lafayette, IN, Urbana, IL and Mead, NE. A few entries that performed well at all three locations include Regenerate, CCR2, Avenger II and Raptor III. Tolerance to stresses such as traffic, shade, drought,

brown patch and rhizome production are being evaluated throughout the testing period. Intensive traffic was applied on the tall fescue trials at Knoxville, TN, Blacksburg, VA and University Park, PA. As with the first two years, year three data showed very little statistical differences among entries. Tird year data from evaluations conducted in shade at Carbondale, IL also demonstrated very little statistical difference among entries. And much anticipated data on rhizomes counts and rate of spread, showed no statistical differences among entries in that study conducted at Logan, UT. Typical for tall fescue, brown patch was the most

prevalent disease noted by researchers. And again, as in 2013, brown patch ratings were not very consistent from location to location. Tese entries finished with the highest brown patch ratings in at last three of the four reporting locations: F711, CCR2, and Technique.

Perennial Ryegrass Perennial ryegrasses are occasionally used in sod mixtures because of positive attributes such as fast

germination, better establishment under low and high temperatures and traffic tolerance. We now have a final summary of four years of data summarized from our 2010 trial. Tis data from 2011-14 shows many new grasses with excellent quality and possible improvement in specific traits. Data from 2012 and 2013 did not show large entry

differences when averaged over Location Performance Index groups. In contrast, data from 2013 and 2014 showed larger entry separations. Entries such as Benchmark, Aspire, Wicked, Grand Slam GLD, Stellar SGL, Uno, Evolve, Trive and Pangea GLR finished in the top statistical group for turf quality in several LPI groups. When analyzed by geographic region (2011-14 data), many of the same entries had turf ratings in the top statistical groupings for almost all regions. Other entries that also performed well within various regions include Bandalore, Rinovo, Green Supreme, SR 4650, Evolution and Diligent. Te exception to this was the Riverside, CA location where the only entries in the top statistical group include Vintage, Excellence, Prominent, GO-G37 and Seductive. Te Amherst, MA location experienced historic injury

as a result of the 2013-14 winter. Winter damage ranged as high as 97%, however, a few entries such as PST-2NKM and Bandalore showed less than 25% damage. In addition, counts of poa annua plants per plot were lowest with Sienna (14), Provost and Allante (both at 15.7), while some entries

TPI Turf News July/August 2016

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