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*Toshihiro Yamada
University Forest in Chiba, the University Forests, the University of Tokyo
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Hiroyuki Ikeda
University Forest in Chiba, the University Forests, the University of Tokyo
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Takeshi Tsukagoshi
University Forest in Chiba, the University Forests, the University of Tokyo
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Hatsuyoshi Nagashima
University Forest in Chiba, the University Forests, the University of Tokyo
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Isamu Karakama
University Forest in Chiba, the University Forests, the University of Tokyo
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Hiroki Inoue
Arboricultural Research Institute, the University Forests, the University of Tokyo