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Makoto WATANABE
JSPS:Research Faculty of Agriculture, Hokkaido Univ.
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Satoshi KITAOKA
JSPS:Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI)
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Hiroyuki TOBITA
Hokkaido Research Center, FFPRI
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Akira UEMURA
Hokkaido Research Center, FFPRI
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Hajime UTSUGI
Hokkaido Research Center, FFPRI
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[in Japanese]
[in Japanese]
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Takayoshi KOIKE
Research Faculty of Agriculture, Hokkaido Univ.