The Resistance Evaluation of Several Corn Germplasms on Corn Curvularia Leaf Spot Disease(Curvularia lunata)

Ninety-four germplasms,including 34 inbred lines and 60 varieties(combinations) were collected to asses their resistance to Curvularia lunata by artificial inoculation at the adult stages in the field.And the inbred lines appeared resistant or susceptible to the disease were chosen to construct population for QTL.No immune,highly resistant or highly susceptible genotypes were found.There were only eight kinds of inbred lines showed resistance to the disease.The majority of inbred lines appeared moderately resistance or moderately susceptible to the disease.Qi319 was resistant to the disease,Ye478 was susceptible to the disease,and they could be used to construct population for QTL.And the majority of the varieties(combinations) showed resistance to the disease.Even there were five kinds of highly resistant varieties.