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用白叶枯病菌优势致病型Ⅳ型菌和强毒菌系Ⅴ型菌鉴定 1 4～ 1 6期国际水稻白叶枯病圃稻种资源 3 3 2份次 ,结果筛选出抗Ⅳ型菌的品种 (系 ) 1 2 3个、抗Ⅴ型菌的品种 (系 ) 4 6个 ;同时发现抗Ⅴ型菌品种兼抗Ⅳ型菌 ;对 2套近等基因系品种的抗性分析表明 ,有些抗性基因的表达受遗传背景的影响
The dominant pathogenic type IV bacteria of Xanthomonas oryzae and the virulent strain of Ⅴ type bacteria were used to identify 34 rice varieties in International Bacterial Blight of Rice Bacterial Blight for 3-4 days. Of which 12 varieties (lines) and 4 6 varieties (lines) of anti-V type were found. In addition, anti-V type and anti-type IV strains were found. Resistance analysis on 2 sets of near-isogenic lines showed that, The expression of some resistance genes is influenced by the genetic background