山药,别名薯蓣,属薯蓣科(Dioscoreaceae)山药属(DioscoreaL.),是一年生或多年生缠绕性藤本植物,能形成肥大的地下肉质块茎供为食用或药用。有些山药品种是我国重要的出口特产蔬菜之一[1-3]。我国是山药重要原产地和驯化中 Yam, alias Dioscorea, is a Dioscoreaceae (Dioscorea L.), annual or perennial winding liana that produces hypertrophy of underground succulent tubers for food or medicinal use. Some varieties of yam is one of China’s important exports of specialty vegetables [1-3]. China is an important origin and domestication of yam