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期 刊 ：植物保护学报 1999年

关键词：水稻；稻瘟病；抗瘟基因；菌株；抗性分析；免疫；

Keywords:rice blast, resistance gene, evaluation of utilization,

摘 要 ：为了明确主要抗瘟基因的抗性现状和利用价值，１９９５－１９９６年采用徕自浙江，四川，湖北，广东等７个省（市）的１５５个稻瘟病菌菌株，测定了日本１３个已知基因粳稻品种的抗性表现。结果表明，１３个抗瘟基因对我国菌株的抗性均不强，菌株毒力频率均在２０％以上。但对我国各稻区的菌株而言多数稻区仍有１－３个基因的抗性保持较高的水平，浙江稻区Ｐｉ－ｚ＾ｔ基因仍有很好的抗性，能抗９５．７％的浙江菌株，四川稻区Ｐｉ－

Abstract:155 isolated of rice blast fungus, Pyricularia grisea, were collected from seven provinces or cities in China for evaluating the resistance of 13v Japonica varieties with known genes during 1995 - 1996. Results showed that the virulent frequency (VF) of 1

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