Regularity of race variation of Magnaporthe grisea and utilization of rice resistant varieties in Wujiang rice-planted region of Jiangsu province Yan DaFu; Hua JiaLu; Lu Fan; Wang FaMing; Yang JinLong; Chen YiRen Jiangsu Journal of Agricultural Sciences 15(3): 141-146 1999 https://eurekamag.com/research/003/253/003253739.php