水稻白叶枯病的症状和病菌侵染

• 机 构: 湖南省农科院植保所
• 出 处: 中国农业科学
• 发表日期: 1978年02期
• 关键词: 水稻白叶枯病 枯心 叶缘 示踪试验 中脉 侵染性病害 安仁 病菌侵染 剑叶 症状

根据以往文献的报道,水稻白叶枯病有慢性型、急性型及急性雕萎型三种,它们都是从叶尖或叶缘开始表现症状的“叶缘型”,故被认为是一个局部侵染性病害。1963年我们在本省的安仁、临武等县调查发现“枯心型”、“中脉型”两种新症状,并作了解剖、接种和示踪试验,初步证明白叶枯病不是局部侵染性病害,而是一个系统性(全株性)病害。

According to previous reports, there are three types of rice bacterial blight, chronic type, acute type and acute carved-wilt type, all of which are the “leaf margin type” that starts to manifest symptoms from the leaf tip or leaf margin, so it is considered as a partial Infectious diseases. In 1963, we found two kinds of new symptoms of “dry type” and “midrib type” in Anren and Linwu counties in our province, and conducted anatomical, inoculation and tracing tests to initially prove that bacterial blight is not a localized infection Sexually transmitted diseases, but a systematic (whole plant) disease.