稻瘟病和白叶枯病是我省水稻最主要的病害.利用抗病品种是防治这两个病害最经济有效的措施.实践证明必须有过硬的抗源,否则难以育成抗病品种.近十年来许多产稻国家都把抗病育种列为水稻育种的重要目标,不遗余力地筛选抗源,培育抗病品种,并已取得显著成效.我们从1975～1982年,在我院沙县稻瘟病圃中共鉴定早稻品种4853份,其中籼稻3420份,粳稻1433份.从中筛选出一部分多年表现抗稻瘟病和抗白叶枯病的品种.然后,再用我们从全省各地采集、分离,鉴定的稻瘟病和白叶枯病菌做了抗性谱测定,从中筛选出在本省表现广谱抗性的抗稻瘟病的抗源品种16个,抗 Rice blast and bacterial leaf blight are the most important diseases of rice in our province.It is the most economical and effective measure to control these two diseases by using disease-resistant varieties.It has been proved that there must be excellent resistance to the disease, otherwise it is difficult to cultivate resistant varieties. In recent years, many rice-producing countries regard disease-resistant breeding as an important goal of rice breeding and spare no effort to screen anti-source and cultivate resistant varieties and have achieved remarkable results. From 1975 to 1982, 4853 early indica rice varieties were identified, of which 3420 were indica rice varieties and 1433 were japonica varieties. Some of them were screened out for their resistance to rice blast and bacterial leaf blight for many years, and then we used the rice blast collected, isolated and identified from all over the province And bacterial leaf blight made resistance spectrum determination, which screened out in the province showed broad-spectrum resistance of blast resistant varieties 16, anti