Elymus dahuricus Turcz.and Elymus sibiricus L.,as the major forages in the world,often suffer from drought to some degree during their growing season.Therefore,the drought-resistant breeding and drought-resistant culture of them should be paid with high attention.At present,the researches in such field mainly concentrate on the collection,identification of the materials and so on,while seldom on the ability of drought resistance.In this study,the drought resistance of 10 wild E.dahuricus and E.sibiricus ger...