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When do Ougan mandarins ripen? An introduction to the Ougan mandarin ripening period
The Ougan mandarin is a traditional local citrus variety of China. During the Song, Yuan, Ming and Qing dynasties it was listed as a tribute fruit by the imperial court, and its cultivation history spans about 2,400 years. The ancients had a verse: "Where there is a forest, there are orange trees; where there is water, there are lotus flowers." In 1990 it was designated by the Beijing Asian Games as the exclusive fruit for athletes. So when do Ougan