To screen the suitability of cold-season turfgrass varieties for Hunan and solve their problems associated with summer in Hunan, 10 cold-season turfgrass cultivars of six species adapting well and widely naturalized in Hunan were selected as research objects, namely, Festuca arundinacea, Festuca rubra, Lolium perenne, Poa pratensis, Trifolium repens, and Agrostis stolonifera. The changes in their turf characteristics; physiological and biochemical indicators of free proline, soluble sugar, chlorophyll, and malondialdehyde content; and leaf memb...