Black heart disease is a common disease in potato shipments. The central potato of the damaged potato block turned black, even blue-black, and the discolored part was irregular in shape. Although the discolored tissue often hardened, it would become soft if placed at room temperature. After storage of potatoes, oxygen deficiency or carbon dioxide poisoning caused by breathing is usually caused. Therefore, storage of potatoes can not be too high, to avoid storage temperature is too high (more than 21 °C) or too low (nearly 0 °C) to store too long.
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