Identification and Evaluation of 331 Maize Germplasm Resistance to Sporisorium reilianum Causing Head Smut
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 exhibit-ed 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,includ-ing Jizi S225,F3814 and 18-HDY-25,demonstrated moderate resistance(MR),accounting for 18.43％.On the oth-er hand,185 materials,including B317,Jizi S516,and T5863,showed susceptible(S),accounting for 55.89％.Fur-thermore,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 low-er than that of Heilongjiang and Inner Mongolia,with 14 materials from Heilongjiang,50 materials from Inner Mon-golia,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.
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