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MASANORI KOIKE
Department of Agro-environmental Science, Obihiro University of Agriculture & Veterinary Medicine
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TOMOKO ITAYA
Department of Agro-environmental Science, Obihiro University of Agriculture & Veterinary Medicine
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KEN-ICHI HOSHINO
Department of Agro-environmental Science, Obihiro University of Agriculture & Veterinary Medicine
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HIDEYUKI NAGAO
Laboratory of Plant Pathology, Faculty of Horticulture, Chiba University
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SATOKO OHSHIMA
Kimitsu Breeding Station, Sakata Seed Corporation