The trials at Kingston Heath Golf Club are now well established and data on quality, density, colour and incidence of disease is being collected every month. A small observation trial has also been undertaken to determine the resistance of each cultivar to an application of the non selective herbicide Amitrole. Some of the results are detailed in the following tables, including the results of statistical analysis. The new varieties Penn A1 and Penn G2 had the lowest ranking for seedling vigour, particularly when compared to Penncross. L93, Dominant, Penncross and Egmont exhibited the greatest seedling vigour.
Turf quality is a visual assessment of the turf as a putting surface.
The variety exhibiting the highest and most consistent quality has been Penn A1, with Penn A4 and Penn G2 also showing good characteristics. Pencross, along with Egmont amongst the poorest for turf quality. The ratings for turf density and closely related to turf quality. Penn A1, Penn A4 and Penn G2 all rate highly for density. Pencross and Egmont have rated lowest for turf density.