小麦白粉菌寄主范围研究初报

A Preliminary Report of Studies on the Host Range of Blumeria graminis f. sp. tritici

人工接种及田间调查的结果表明，采自河南和陕西的小麦白粉菌系能正常地侵染７属２３种禾本科植物。其中有６属１１种禾草为国内首次报道的该菌寄主。连同前人的研究，目前发现的我国小麦白粉菌寄主植物已达１０属３１种。从小麦属各植物材料对小麦白粉菌的感染情况，进一步支持了小麦属的现代分类理论。

The results of artificial inoculation and field survey indicated that 23 plant species representing 7 genera of Gramineae are the hosts of Blumeria graminis(DC. ) speer f. sp. tritici Em Marchal. Among them 11 grass species of 6 genera are new records of hosts of this powedery mildew in China. UP to the present,a total of 31 plant species distributed over 10 genera have been reported by the present writers and other authors to be host of this fungus in China. It is suggested that the behavior of wheat powdery mildew on the accessions of Triticum supports the morden taxonomic systems of the genus Triticum L.