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Yoshitaka SANO
Graduate Schoolof Scienceand Technology, Niigata University Kyoto Instituteof Technology
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Megumu TANAHASHI
Facultyof Agriculture, Niigata University Niigata Agricultural Experiment Station
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Manabu KAWATA
Graduate Schoolof Scienceand Technology, Niigata University
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Makoto KOJIMA
Facultyof Agriculture, Niigata University