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Masatoshi ONUKI
Kyushu National Agricultural Kxperiment Station
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Jun-ichi SAKAI
Kyushu National Agricultural Kxperiment Station
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Kaoru HANADA
Kyushu National Agricultural Kxperiment Station
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Kimihiko KATO
Shizuoka Agricultural Experiment Station
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Tomio USUGI
Okinawa Branch of Japan International Research Center for Agricultural Sciences