求翻译：２０世纪２０—３０年代，日本佐佐木等首先开展了稻瘟病菌生理分化的研究，确定了稻瘟病菌生理小种的存在。我国于７０年代末全面开展了相关研究，根据稻瘟病菌对水稻不同品种的致病性差异，将其区分为不同的生理小种。在我国，稻瘟病菌生理小种的７个鉴别寄主为特特普（Ｔｅｔｅｐ）、珍龙１３、四丰４３、东农３６３、关东５ｌ、合江１８和丽江新团黑谷等。是什么意思？

In the 1920s and 1930s, Japan, Sasaki et al first carried out the physiological differentiation of Magnaporthe grisea to determine the existence of M. grisea physiological. China in the late 1970s fully carry out the relevant differences of M. grisea pathogenicity of different varieties of rice, wil

Century 20 20 - 30 s, the Japanese Suzuki first, such as the rice treatment bacteria divide the physiological studies that identify the rice treatment bacteria exist in a small physiological. In the late 70s my country in the study, based on rice in the rice treatment bacteria of different species o

The 20th century 20-30 age, Japanese Sasaki and so on have first carried out the rice blast fungus physiology differentiation research, has determined the rice blast fungus physiologic race existence.Our country has carried out the correlation research comprehensively in the end of the 70's, accordi

20th century era, Japan Sasaki, first carried out a study on physiological specialization of Magnaporthe grisea, determining the existence of physiological races of rice blast fungus. Our country was fully carried out relevant research in the late 70, according to differences in pathogenicity of Mag

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