^○Suzuki Norihiro, Kumai Aogu, Tsugami Yusaku, Suzuki Takahiro, Nishimura Takanori, Kobayashi Ken (Hokkaido Univ.)

^○Kobayashi Ken, Tsugami Yusaku, Suzuki Norihiro, Kumai Aogu, Suzuki Takahiro, Nishimura Takanori (Research Faculty of Agriculture, Hokkaido Univ.)

^○Tsugami Yusaku, Suzuki Norihiro, Kumai Aogu, Suzuki Takahiro, Nishimura Takanori, Kobayashi Ken (Hokkaido Univ.)