2020-2021年通过田间人工接种对331份玉米自交系进行抗丝黑穗病鉴定。结果表明，4份材料冀资13W154、RA461、18-QTL-18和F2644表现高抗(HR)，占鉴定总数的1.21%；5份材料55438-1、18-QTL-14、HA746、B6和T7308表现抗病(R)，占鉴定总数的1.51%；冀资S225、F3814、18-HDY-25等61份材料表现中抗(MR)，占鉴定总数的18.43%；B317、冀资S516、T5863等185份材料表现感病(S)，占鉴定总数的55.89%；冀资H631、CNHS17013、55444-1等76份材料表现高感(HS)，占鉴定总数的22.96%。中抗(MR)以上材料黑龙江省14份、内蒙古自治区50份、河北省6份，分别占其本省鉴定数量的29.79%、23.15%、8.82%，来自河北的种质整体抗丝黑穗病水平低于黑龙江和内蒙古。

From 2020 to 2021, the resistance of 331 maize inbred lines to Sporisorium reilianum was identified by artificial inoculation in the field. The results showed that Jizi 13W154, RA461, 18-QTL-18, and F2644 exhibited high resistance(HR), accounting for 1.21% of the total identified. Additionally, 55438-1, 18-QTL-14, HA746, B6, and T7308 displayed resistance(R), accounting for 1.51% of the total identified. Moreover, 61 materials, including Jizi S225, F3814 and 18-HDY-25, demonstrated moderate resistance(MR), accounting for 18.43%. On the other hand, 185 materials, including B317, Jizi S516, and T5863, showed susceptible(S), accounting for 55.89%. Furthermore, Jizi H631, CNHS17013, 55444-1 and other 76 materials showed high susceptibility(HS), accounting for 22.96% of the total number of identifications. The overall level of resistance of germplasm from Hebei to HS was lower than that of Heilongjiang and Inner Mongolia, with 14 materials from Heilongjiang, 50 materials from Inner Mongolia, and 6 materials from Hebei, accounting for 29.79%, 23.15%, and 8.82% of the total number of identifications in their provinces, respectively. The overall resistance level of Hebei germplasm against HS was lower than that of Heilongjiang and Inner Mongolia.

S435.131

农业部作物种质资源保护项目(NWB030-14)、嘉峪关市科技计划项目(22-26)