Comparison of adaptability of thirteen cultivars of coldseason turfgrass in spring and summer in Bengbu

The apparent quality and physiological indexes of 13 cultivars of coldseason turfgrass evaluated and measured. The results showed that the texture, tilling density, uniformity, coverage and leaf color of 13 cultivars were different. The apparent quality of Fescue Supreme, Pride, Houndog Ⅴ, Millennium, Homeland belonging to Festuca arundinacea were better, Ryeprince and Esquiro belonging to Lolium perenne grown better in spring than in summer. While Turf Star, Midnight, Total Eclipss, Award, Merit, Nuglade belonging to Poa pratensis performed very poor among the cultivars in spring and summer. As for physiological index, the root activity, soluble sugar content, chlorophyll content and proline content of Houndog Ⅴ, Pride, Millennium, Ryeprince Esquiro and Award were higher than other cultivars, but MDA contents of them was lower than others. The comprehensive analysis of apparent quality and physiological indexes indicated that Pride, Millennium and Houndog Ⅴwere the best, Ryeprince and Esquiro were better in spring than in summer, Turf Star, Midnight, Total Eclipss, Award, Merit and Nuglade were poor in spring and summer, in terms of adaptability.