Tōhoku region
Tōhoku was traditionally considered the granary of Japan because it supplied Sendai and the Tokyo-Yokohama market with rice and other farming commodities. Tōhoku provided 20 percent of the nation's rice crop. The climate, however, is harsher than in other parts of Honshū due to the stronger effect of the Siberian High, and permits only one crop a year on paddy fields.
Japanese rice
Koshihikari () is a particularly esteemed cultivar and one of the most commonly grown in Japan. Akitakomachi is also quite popular. Sasanishiki is a cultivar known for keeping the same taste when cooled down. Yamada Nishiki is the most famous cultivar grown specifically for sake.