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*Jyun Tominaga
Faculty of Agriculture, University of the Ryukyus
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Yoshinobu Kawamitsu
Faculty of Agriculture, University of the Ryukyus
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Yasunori Fukuzawa
Faculty of Agriculture, University of the Ryukyus
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Ryuichi Suwa
Faculty of Agriculture, University of the Ryukyus
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Masami Ueno
Faculty of Agriculture, University of the Ryukyus