1. National Engineering Research Centre for Sugarcane; Fujian Agriculture and Forestry University; Fuzhou Fujian 350002 China
2. Department of Plant Pathology; Everglades Research and Education Center; University of Florida; IFAS; Belle Glade FL 33430 USA
3. College of Crop Science; Fujian Agriculture and Forestry University; Fuzhou Fujian 350002 China