从不同人工老化处理中筛选出３组分别代表不同活力的玉米种子。萌发期间，中、低活力种子胚蛋白的降解比高活力对照种子慢，萌发前期胚蛋白合成能力也较低。吸胀２４ｈ，不同活力胚的蛋白合成能力差异显著，可以作为衡量种子活力的指标。 Three groups of maize seeds, each representing different vigor, were selected from different artificial aging treatments. During germination, the germ protein of medium and low vigor seeds degrade more slowly than the hypersensitive seeds, and the synthesis ability of pregerminant embryo protein is also low. After 24 hours of imbibition, the protein synthesis ability of different viable embryos was significantly different, which could be used as an indicator of seed vigor.