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水稻白叶枯病已成为江苏省扬州地区发展水稻生产的重大障碍。在1970—1981年的12年中,大流行的年份有3年,损失稻谷7,000—11,000万斤;中等流行年份有4年;其它年份发病面积25—30万亩,损失稻谷100—200万斤。解决白叶枯病的根本途径是选育和推广抗病品种。扬州地区农科所(以下简称扬州所)从1975年以来,开展了抗病品种研究工作,在大量筛选、鉴定
Rice bacterial blight has become a major obstacle to the development of rice production in Yangzhou, Jiangsu Province. In the 12 years from 1970 to 1981, the year of the pandemic was 3 years, with a loss of 7,000-11,000 kilograms of paddy; a middle-aged year of 4 years; an incidence of 25-30 million mu in other years and a loss of 100-200 kilograms of paddy . The fundamental way to solve bacterial blight is breeding and popularizing disease-resistant varieties. Since 1975, Yangzhou Agricultural Science Institute (hereinafter referred to as Yangzhou Institute) has carried out research on disease-resistant varieties and has conducted extensive screening and identification