用从变色稻谷上分离获得的弯孢霉属6个种,探讨了不同接种方法与变色稻谷(米)发生的关系。结果表明,变色谷和褐粒米的粒发病率,颖内注射>孕穗期注射>开花期喷雾接种。3种接种方法均可产生较高的变色谷不实率,而以孕穗期注射和颖内注射高于开花期喷雾接种。 Six species of Curvulariae isolated from discolored paddy were used to investigate the relationship between different inoculation methods and discoloration of paddy rice. The results showed that the grain incidence of discolored valleys and brown kernels was injec- tion> booting> booting> anthesis. All of the three inoculation methods could produce higher rate of discolored grains, but higher in booting stage and inflorescence than in flowering stage.