On the Identification of New Varieties of Maize Resisting Head Smut in Jilin Province

It was identified and appraised that 29 new varieties of maize in maturity of Jilin province were inoculated with head smut.The results showed that in 29 new varieties,the highly resistant varieties and resistant varieties respectively were 11 and 12,the medium resistant varieties were 3,while the susceptible varieties and highly susceptible varieties respectively were 2 and 1.The proportion of the varieties that could achieve above disease-resistant was 79.31%,and that of susceptible varieties and highly susceptible was 10.35%.Proved that new varieties of maize in maturity eslected in Jilin province most were resistant varieties,but also existed susceptible,even highly susceptible genetic factors.