The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was established in September 2011 as a part of the NTEP program. It contains 82 Kentucky bluegrass cultivars.
Iowa State University
Christians, Nick; Strey, Dan; and Adams, Ryan, "NTEP Kentucky Bluegrass Study 2014" (2015). Iowa State Research Farm Progress Reports. 2177.