1. National Agriculture and Food Research Organization, Institute for Agro-Environmental Science, Tsukuba, Ibaraki, Japan
2. Central Agricultural Experiment Station, Hokkaido Research Organization, Yubari, Hokkaido, Japan
3. Iwate prefecture, Agricultural Research Center, Kitakami, Iwate, Japan
4. Akita prefecture, Agricultural Experiment Station, Akita, Akita, Japan
5. Kanagawa prefecture, Agricultural Technology Center, Hiratsuka, Kanagawa, Japan
6. Chiba prefecture, Agricultural and Forestry Research Center, Chiba, Chiba, Japan
7. Niigata prefecture, Agricultural Research Institute, Nagaoka, Niigata, Japan
8. Aichi prefecture, Agricultural Research Center, Nagakute, Aichi, Japan
9. Shiga prefecture, Agricultural Technology Promotion Center, Omihachiman, Shiga, Japan
10. Hyogo prefecture, Technology Center for Agriculture, Forestry and Fisheries, Kasai, Hyogo, Japan
11. Nagasaki prefecture, Agricultural and Forestry Technical Development Center, Isahaya, Nagasaki, Japan
12. Kagoshima prefecture, Institute for Agricultural Development, Minami Satsuma, Kagoshima, Japan