1. Graduate School of Agriculture Kyoto University Kitashirakawa‐Oiwake‐cho, Sakyo‐ku Kyoto 606‐8502 Japan
2. Central Region Agricultural Research Center National Agriculture and Food Research Organization Tsu 514‐2392 Japan
3. Miyagi Prefectural Furukawa Agricultural Experiment Station Fukoku 88 Furukawa‐Osaki 989‐6227 Japan
4. Akita Prefectural Agricultural Experiment Station 34‐1 Yuwaaikawa‐azagenpachizawa Akita 010‐1231 Japan
5. Japan Association for Advancement of Phyto‐Regulators (JAPR) 860 Kashiwada‐cho Ushiku 300‐1211 Japan
6. Field Science Center Faculty of Agriculture University of Miyazaki 1‐1 Gakuen‐kibanadai‐nishi Miyazaki 889‐2192 Japan
7. Tohoku Agricultural Research Center National Agriculture and Food Research Organization 50 Harajukuminami Arai 960‐2156 Japan
8. Yamanashi Prefectural Agritechnology Center 1100 Shimoimai Kai 400‐0105 Japan
9. Shizuoka Prefectural Research Institute of Agriculture and Forestry 678‐1 Tomigaoka Iwata 438‐0803 Japan
10. Tottori Agricultural Experiment Station 260 Hashimoto Tottori 680‐1142 Japan
11. Yamaguchi Prefectural Agriculture and Forestry General Technology Center 1‐1‐1 Ouchihikami Yamaguchi 753‐0231 Japan
12. Faculty of Agriculture Setsunan University 45-1 Nagaotoge-cho Hirakata 573-0101 Japan