The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was initiated in September 2014 as part of the NTEP program. This is the first year data were collected. It contains 20 bentgrass cultivars.
Iowa State University
Strey, Dan; Christians, Nick; and Adams, Ryan, "NTEP Greens Height Bentgrass Study 2014" (2015). Iowa State Research Farm Progress Reports. 2172.