论文部分内容阅读
毒源采集 1980年8月在中国农科院油料所大豆试验田采到田间表现枯斑和花叶,人工接种大豆表现枯斑反应的毒株。1981年3月在广东省顺德县力流公社桑园采到系统退绿褐色环斑症状的桑苗毒株,人工接种大豆表现枯斑反应的毒株。
Toxic source collection August 1980 in the Chinese Academy of Agricultural Sciences oil soybean test field to the field performance of the spotted and mosaic, artificial inoculation soybean performance of the reaction of the dead strain. March 1981 in Shunde County, Guangdong Province Commune commune mulberry access system to recover green brown ring symptoms of mulberry seedling strains, artificial inoculation of soybean strains showing response to dead spots.