【摘要】 作者在1980～1981年,通过灰飞虱(Laodelphax Striatellus Fallen)接种,试测了36属70种禾本科植物和棉花等9种双子叶植物。根据病状和回接结果,57种禾本科植物感染,所试双子叶植物均不感染。寄主植物有高梁、谷子、水稻、玉米、大麦、燕麦、黑麦、小黑麦和小麦属的20个种,以及马唐、稗草、金狗尾、画眉等28种禾草。我国玉米粗缩病的病毒寄主植物及其病状反应与玉米粗缩病毒(MRDV)和水稻黑条矮缩病毒(RBSDV)相似,但有不同。主要区别是我国玉米粗缩病的病毒侵染高梁。高梁感染后明显矮化,叶色暗绿,叶脉间发生密集的平行透明条点,叶背和叶鞘的脉上产生一些蜡泪状隆起,以及心叶叶缘缺蚀。更多还原

【Abstract】 Seventy species of plant belonging to 36 genera of Gramineae and 9 species of dicotyledon were tested or their susceptibility to the virus cau-sing maize rough dwarf disease and their symptoms produced after insect(Laodelphax striatellus Fallen.)inoculations.According to symptoms ex-pressed and the results of back-noculations,out of 70 Gramineae tested57 species were infected by this virus including maize,sorghum,millet,rice,barley,oat,rye,triticale,21 species of Triticurn,and 41 grasses.The host range of this virus s similar to MRDV reported in Italy andRBSDV reported in Japan.However,the present virus infected sorghum,whereas MRDV and RBSDV did not.The sorghum infected by this virusshowed pronounced dwarfing,dark reen leaves,marked streaks betweenveins of leaf,enatio(?) (?)n (?)eins of undersurface of leaf and leaf sheath.更多还原