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1972年4月间,本省临安、萧山、桐庐、杭州、余杭等地先后发现一种大麦新病害。为此,遵照毛主席关于“一切实际工作者必须向下作调查”的教导,我们重点在萧山和杭州进行了实地调查。从调查表明,大麦新病害的共同特症是:出现花叶和细小的褐色条点。为了鉴定这种新病害,我们又在室内进行一系列试验观察(如内含体的检查、麦类间传毒接种、在不同鉴别寄主上重复反应测定等),证明这种大麦的新病害并非是真菌或细菌感染而引起的,而是一种伪条斑病毒病。现将有关试验综述如下,以供参考。
April 1972, the province Lin’an, Xiaoshan, Tonglu, Hangzhou, Yuhang and other places have found a new disease of barley. To this end, following Chairman Mao’s teaching on “All actual workers must make further investigations,” we conducted field investigations mainly in Xiaoshan and Hangzhou. According to the survey, the common trait of new diseases in barley is the appearance of mosaic leaves and small brown spots. In order to identify this new disease, we conducted a series of laboratory observations indoors (eg, inclusion body testing, inter-wheat poisoning inoculation, repeated reaction assays on different identification hosts, etc.) to prove that this new disease in barley is not It is caused by a fungal or bacterial infection, but a pseudo-streak virus disease. The relevant test is summarized below for reference.