1. Faculty of Food and Agricultural Sciences, Fukushima University, Fukushima, Japan
2. Department of Crop Science, Faculty of Agriculture and Natural Resources, University of Namibia, Oshakati, Namibia
3. School of Environmental Science, The University of Shiga Prefecture, Hikone, Japan
4. Faculty of Social & Cultural Studies, Kyushu University, Fukuoka, Japan
5. Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
6. Graduate School of Agricultural Sciences, Kindai University, Nara, Japan
7. JST/JICA, SATREPS, Japan