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Shiro MATSUNAMI
Graduate School of Agriculture, Hokkaido Univ.
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Makoto KOBAYASHI
Graduate School of Agriculture, Hokkaido Univ.
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Kazu ICHIKAWA
Hokkaido University Forests, FSC
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Yukio AKIBAYASHI
Hokkaido University Forests, FSC
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Kaichiro SASA
Hokkaido University Forests, FSC
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Takami SATOMURA
Hokkaido University Forests, FSC:(Present address)Faculty of Agriculture, Kagawa Univ. Takamatsu
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Tetsuya KONDO
Research Faculty of Agriculture, Hokkaido Univ.
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Takayoshi KOIKE
Research Faculty of Agriculture, Hokkaido Univ.