Institution: | Institute of Low Temperature Science, Hokkaido University, Kita-19 Nishi-8, Kita-ku, Sapporo 060–0819, Japan;Research Institute of Agricultural Resources, Ishikawa Agricultural College, 1–308, Suematsu, Nonoichi, Ishikawa 921, Japan;Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-8, Kita-ku, Sapporo, 060–8589, Japan |