ABSTRACT
Takashi Handa and Koichi Kita are affiliated with the Institute of Agriculture and Forestry, University of Tsukuba, Tsukuba. Ibaraki, Japan.
Pheravut Wongsawad is affiliated with the Institute of Agriculture and Forestry, University of Tsukuba, Tsukuba, Ibraraki, Japan, and the Department of Biology, ChiangMai University, ChiangMai, Thailand.
