1. Division of Upland Farming Research, Kyushu Okinawa Agricultural Research Center, NARO
2. Division of Field Crop Research and Development, Hokkaido Agricultural Research Center, NARO
3. Crop Development and Agribusiness Research Division, Kyushu Okinawa Agricultural Research Center, NARO
4. Pressent address: Department of Planning, Kyushu Okinawa Agricultural Research Center, NARO