Effects of Drought and Heat Stress on Response of 4 Tall Fescue Cultivars on Vegetation Concrete

The morphological characteristics of 4 tall fescue(Festuca arundinacea) cultivars on vegetation concrete were investigated during heat stress, drought stress and heat drought stress. The results showed that the plant morphogenesis was inhibited by heat drought stress, specifically in tillers, leaf color, leaf width, the ratio of root to crown; Millenninm Ⅱ adapted to heat and drought stress in the four tested varieties, and Millenninm had poor heat and drought tolerance.