1. Graduate School of Agriculture, University of Miyazaki, 1-1 Gakuen Kibanadai-nishi, Miyazaki, Miyazaki 889-2192, Japan
2. Organization for Promotion of Tenure Track, University of Miyazaki, 1-1 Gakuen Kibanadai-nishi, Miyazaki, Miyazaki 889-2192, Japan
3. School of Industrial Technology, Mongolian University of Science and Technology, P.O. Box-46/520, Baga Toiruu, Sukhbaatar district, Ulaanbaatar-46, Mongolia
4. Research and Development Division, Minami Nihon Rakuno Kyodo Co., Ltd., 5282 Takagi, Miyakonojo, Miyazaki 885-0003, Japan