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1977～1978年,我们将杂交水稻凋萎型白叶枯病病株上分离的病原细菌,通过电镜观察、培养性状和接种鉴定,证明与常规水稻上的叶缘型白叶枯病(典型白叶枯病)病菌同属Xanthomonao oryzae Dowson,同时证明了凋萎型和叶缘型菌株都有强弱之分,两者间没有质的差别。在这一研究结果的基础上,我们就病原菌侵染的条件和药剂防治效果等方面进行了探究。兹将研究结果整理如下。
From 1977 to 1978, we isolated the pathogenic bacteria isolated from the blight-resistant bacterial blight of hybrid rice by electron microscopy, culture and inoculation. The results showed that compared with the conventional bacterial blight on leaf margin (typical white Leaf blight) belong to the same genus Xanthomonas oryzae Dowson. At the same time, it was proved that both the wilt-type and the leaf-edge type strains have the strength and weakness, and there is no qualitative difference between the two. Based on the results of this study, we investigated the conditions of pathogen infection and the effects of pesticides. The research results are summarized below.