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甘薯,又名红薯、番薯、白薯、地瓜、山芋等。甘薯是我国粮食生产中的重要作物之一,从东北到西南广泛种植。 甘薯在贮藏中,发生烂窖的主要原因是“五害一缺”。即:①冷害。冷害是指薯块长期处于9℃以下,钾离子外渗,不能保持细胞正常浓度,薯块新陈代谢活动受到破坏。一般是由于收获晚,或收获后不及时运回贮藏放在地里过夜而受害。另一个原因是薯窖保温或保管不善而受冷害,根据试验一般造成冷害的温度和时间是窖温8℃～9℃为10天,窖温5℃～6℃为6天,2℃～3℃为3天。②冻害。冻害是指温度降到—1.3℃～2℃时,薯块内部细胞间隙结冰,使组织破坏而发生。③湿害。湿
Sweet potato, also known as sweet potato, sweet potato, sweet potato, sweet potato, potato and so on. Sweet potato is one of the important crops in grain production in our country and is widely planted from northeast to southwest. Sweet potato in storage, the main reason for the occurrence of rotten cellar is “five victims a deficiency.” Namely: ① cold damage. Chilling injury refers to the long-term tubers below 9 ℃, potassium extravasation, can not maintain the normal cell concentration, tubers metabolic activity was destroyed. Usually due to late harvest, or harvest after the timely return to storage in the ground overnight and suffer. Another reason is the cold storage of potato pit insulation or poor storage, according to the test generally cause chilling damage temperature and time is the pit temperature 8 ℃ ~ 9 ℃ for 10 days, pit temperature 5 ℃ ~ 6 ℃ for 6 days, 2 ℃ ~ 3 ℃ for 3 days. ② frost damage. Frost damage refers to the temperature dropped to -1.3 ℃ ~ 2 ℃, the potato intercellular interstitial icing, the destruction of the organization. ③ wet damage. wet