About YAMAMOTO TAKANORI
About ITO MASAMI
About HARAKO TATSUKI
About 山形大学紀要 農学
About Malus pumila
About Pyrus communis
About fruit abscission
About wind damage
About reinforcement
About fruit
About branch
About Yamagata prefecture
About fruit bearing branch
About Fruit trees
About リンゴ
About セイヨウナシ
About 強風
About 落果
About 果梗
About 物理
About 補強
About 防止対策