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Masashi Fujinaga
Nagano Vegetable and Ornament Crops Experiment Station
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Hideki Ogiso
Nagano Vegetable and Ornament Crops Experiment Station
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Kazuhiko Komatsu
Nagano Vegetable and Ornament Crops Experiment Station
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Norio Nishimura
National Agricultural Research Center for Kyushu Okinawa Region