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Yoko TAKAHASHI
Department of Agrobiology and Bioresources, Faculty of Agriculture, Hokkaido University
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Yasuyo KAMAGATA
Hokkaido Green-Bio Institute
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Takeshi MATSUMURA
Hokkaido Green-Bio Institute
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Ichiro UYEDA
Department of Agrobiology and Bioresources, Faculty of Agriculture, Hokkaido University
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Gaylord I. MINK
Department of Plant Pathology, Washington State University, Irrigated Agriculture Research and Extension Center
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Philip H. BERGER
Department of Plant, Soil and Entomological Sciences, University of Idaho