*Xiangqun Gu¹, Zhihai Yang¹, Lan Long¹, Shi Min¹ (1. College of Economics and Management, Huazhong Agricultural University, Wuhan, China)

*Francis Ndip EBAI¹, Takeshi Sakurai¹ (1. University of Tokyo)

*Jamhari Jamhari¹, Shigekazu Kawashima², Hitoshi Yonekura³ (1. Gadjah Mada University and Visiting Professor of Tohoku University, 2. Miyagi University, 3. Tohoku University)

*Siyi Liang¹, Huaiyu Wang¹, Valerian O Pede², Anh Dao The³ (1. Beijing Institute of Technology, 2. International Rice Research Institute, 3. Vietnam Academy of Agricultural Sciences)

*Takashi KUROSAKI¹, Deepak Johnson² (1. Hitotsubashi University, 2. JSPS and Hitotsubashi University)