Analysis of Maize Variety Resistance to Curvularia lunata Leaf Spot

Curvularia leaf spot of maize,mainly caused by Curvularia lunata(Walk)Boed ,is becoming serious in China.The disease resistance of 27 hybrids and 46 inbred lines widely used by the producers were analysed by artificial inoculation method.The results showed that there was distinct physiological differential phenomenon among isolates of C.Lunata.Meanwhile,significant differences of disease resistance also existed among different maize varieties,but none of accessions was immunity type.Most varieties widely used in production were susceptibile types.