1. Department of Plant Science and Agricultural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
2. National Agriculture and Forestry Research Institute, Ministry of Agriculture and Forestry, Vientiane, Lao PDR
3. Rice Department, Ubon Ratchatani Rice Research Center, Ubon Ratchatani, Thailand
4. School of Agriculture and Food Sciences, The University of Queensland, Brisbane, Australia