It was created by artificially hybridizing 'Yamada Ear' and 'Dwarf Watashibune' at Hyogo Prefectural Agricultural Experiment Station (now Hyogo Prefectural Agriculture, Forestry and Fishery Technology General Center) in Yashiro Town, Kato County, Hyogo Prefecture (present-day Kato City) in 1923, and its adaptability to the production areas was tested in sake rice production regions (presently, sake rice testing areas) in 1928.
1923年に兵庫県加東郡社町（現：加東市）の兵庫県立農事試験場（現：兵庫県立農林水産技術総合センター）で「山田穂」「矮性渡船」を人工交配させて誕生し、1928年に酒造米生産地（現酒米試験地）で産地適応性の試験が行われた。