阴山扁宿豆的病害初报

STUDY TO DISEASES OF MELISSITUS RUTHENICUS

本文报道了阴山扁宿豆(Melissitus ruthenicus var. inschanius)的6种真菌病害。即:锈病(Uromyces striatus Schroet.)、霜霉病(Peronospora aestivalis Syd.)、茎点霉叶斑和茎斑病(Phoma mvdicaginis Malbr. ＆ Roum.)、镰孢萎蔫病(fusarium oxysporwn Schlecht.)、丝核菌腐烂病(Rhizoctoniasolani Kuhn)和炭疽病(Colletotrichum lindemuthianum Ferr.)。后4种病原菌——寄主组合以往文献中未有报道。霜霉病和茎点霉病在甘肃的高山草原和半干旱山区流行严重。

6 fungal diseases of Melissitus var. inschanicus have been reported in the paper. Namely; rust(Uromyces striatus Schroet.), downhy mildew(peronosporaaestivalis Syd.), Phoma leafspot and stemspot(Phoma medicaginie Malbr. & Roum.), Rhizoctonia rot(Rhizoctonia solani Kuhn), Fusarium wilt (Fusarium oxysporum Schloecht.), and anthracnose (Coll-etotrichum lindemuthianum Ferr.), the latter 4 pathogen-host combinations are published for the first time in literature. Downy mildew and phoma disease are the most prevalent diseases in the alpine grassland and semi-arid mountain area in Gansu province.