日本１９９８年大豆种植面积达１０ ９万ｈｍ２ ,大豆是日本人民重要的食物营养源。１ 育种研究历史（１）品种的引种、比较阶段。日本从明治时代初开始品种的引种、品种的比较试验。秋田县自１８８１年开始品种的引入试验 ,作为国家的育种引种是１８９３年在农业试验场开始的 Japan in 1998 soybean planting area of ​​1090000 hm2, soybean is the Japanese people an important source of food nutrition. A history of breeding research (1) species introduction, comparison stage. Japan from the beginning of the Meiji era introduction of varieties, varieties of comparative experiments. Introduction of varieties into Akita Prefecture since 1881, introduction as a national breeding program started in agricultural experiment site in 1893