dewa33Dewasansan was first cultivated in Yamagata in 1985– a cross of Hanafubuki () and Miyama Nishiki (). It was officially registered in 1997. In 2019, 1436 metric tonsDewasansan was first cultivated in Yamagata in 1985– a cross of Hanafubuki () and Miyama Nishiki (). It was officially registered in 1997. In 2019, 1436 metric tons