An auction in the city of Tendō in Yamagata, Japan's main cherry-producing prefecture, also sold a 68-cherry box for a record 1.55 million yen. Cherries typically peak in early summer, but growers have advanced the harvest using "ultra-forced" cultivation, which chills trees to simulate winter before keeping them in greenhouses. Kenichi Mannen, deputy sales manager at JA Tendō Foods, which won the top bid in Tendō, said, "I heard management was tough this year due to unstable weather, and we want to work hard to deliver products that make customers happy."