目的 研究真空包装及不同种植条件对莲藕贮藏和营养品质的影响，明确品质指标间的相关性，建立莲藕采后品质综合评价体系。方法 首先对比真空包装对莲藕失水率及色泽的影响。在此基础上以真空包装的莲藕为实验材料，研究露天和大棚2种种植方式及长、短种植周期对莲藕贮藏品质和营养成分的影响，利用品质指数(Lotus Quality Index，LQI)对莲藕营养品质进行评价。结果 低温下，真空包装能有效缓解莲藕水分散失及维持外观色泽，将货架期从2 d延长至10 d左右。大棚长周期种植的莲藕耐贮性最强，外观品质保持较好，而大棚短周期产品营养品质最佳。单位质量莲藕中可溶性固形物(Total Soluble Solids，TSS)、总糖、淀粉、可溶性蛋白、抗坏血酸(Vitamin C，Vc)和总酚经10 d贮藏后均增加。LQI表明真空包装有利于维持莲藕贮藏期间的营养价值。结论 大棚种植有效提升了莲藕的营养及贮藏品质，而种植周期要结合经济效益决定。

The work aims to investigate the effects of vacuum package and different planting conditions on the storage and nutritional quality of lotus roots, figure out the relationship between indexes and establish a comprehensive evaluation system for the quality of postharvest lotus roots. Firstly, the effects of vacuum package on the water loss rate and color of lotus roots were compared. On this basis, the effects of two planting methods, open-air and greenhouse, and long and short planting periods on the storage quality and nutritional components of lotus root were studied. The lotus quality index (LQI) was used to evaluate the nutritional quality of lotus roots comprehensively. At low temperature, the vacuum package could effectively alleviate the water loss of lotus roots and maintain the appearance color, extending the shelf life from 10 d to 2 d. Lotus roots cultivated in the greenhouse with long planting period were the most resistant to store while those planted for short period had the best nutritional quality. The total soluble solids, total sugar, starch, soluble proteins, Vc, and total phenols in lotus roots increased after 10 days of storage. LQI indicated that the nutritional value of lotus roots was maintained with vacuum package during storage. The greenhouse planting can effectively improve the nutrition and storage quality of lotus roots, and the planting time should be determined based on economic benefits.