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去年,在我省杂交水稻试种示范过程中,发生了一种枯心凋萎症状。罹病稻株叶片失水青枯、凋萎死亡。死苗缺株,影响产量,是杂交水稻发展和高产的一大障碍。为了控制其扩展蔓延,首先需要探明这种症状是否为国内外报导的水稻凋萎型自叶枯病?我们在病区观察和通迅调查的同时,进行了症状诊断和病原鉴定,结果如下:
Last year, withered and wilted symptoms took place during the pilot demonstration of hybrid rice in our province. Diseased rice leaves dry leaves withered, withered death. Dead seedlings, affecting yield, is a major obstacle to the development and high yield of hybrid rice. In order to control the spread of the disease, we first need to ascertain whether this symptom is reported from home and abroad, withered blight of rice blight? We in the ward observation and communication survey at the same time, the symptoms were diagnosed and pathogen identification, the results are as follows :