Studies on Drought Tolerance Mechanism of Five Cold-season Turfgrass at Water Stress

Through cultivating five cold-season turfgrass (Lolium perenne,Agrostis stolonifera,Festuca rubra,Festuca arundinacea,Bromus inermis) in basin,their drought to lerance indexes,including the planting height,the root growth,the relative water content of leaves,the penetration of membrane,were comprehensively evaluated to compare their drought tolerance.The results showed,under the stress of continuous drought,the relative water content of leaves had a descending trend,while the penetration of membranes lightly increased.And their sequence of drought tolerance during seedling was Lolium perenneFestuca arundinaceaBromus inermisFestuca rubraAgrostis stolonifera.