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 E. and Strey, Daniel J., "Kentucky Bluegrass Cultivar Study" (2014). Iowa State Research Farm Progress Reports. 2008.