Thirty isolates of Magnaporthe grisea collected from 18 provinces/cities representing 21 pathotypes and 9 different lineages were inoculated to rice varieties with known resistance genes, some hybrid rice, and conventional early indica and late japonica varieties cultivated in recent years in China. The results indicated that some of them were resistant to most of the isolates tested and that they could be of interest as resistance sources for hybrid donors/parents or to be planted in the field directly.