1. National Agriculture and Food Research Organization (NARO), Institute of Vegetable and Floriculture Science (NIVFS)
2. College of Agriculture, Ibaraki University
3. College of Bioresource Sciences, Department of Bioenvironmental and Agricultural Engineering, Nihon University
4. NARO, Institute of Agricultural Machinery
5. NARO, Research Center for Agricultural Robotics
6. Kurokawa Field Science Center, Meiji University