以58份美国玉米自交系为试验材料,采用人工接种方法进行玉米自交系抗丝黑穗病鉴定。连续两年鉴定结果表明,供试材料对玉米丝黑穗病抗性差异较大,抗病和感病自交系各占50%。其中B90、LH38和IRF240等10份自交系表现为高抗,在抗病育种中可优先利用;B105、B108、B103等13份自交系表现为高感,在抗病育种中应改良后利用。 In this study, 58 maize inbred lines were used as experimental materials to identify head smut resistance in maize inbred lines by artificial inoculation method. The results of two consecutive years of identification showed that the tested materials had greater resistance to maize head smut, with 50% each of resistant and susceptible inbred lines. Among them, 10 inbred lines such as B90, LH38 and IRF240 showed high resistance and could be used preferentially in disease-resistant breeding. Thirteen inbred lines such as B105, B108 and B103 showed high sensitivity and should be improved in resistance breeding use.