品种纯度是种子质量的重要指标之一 ,当前对玉米种子的纯度检验多数依靠经验进行直观判断 ,准确性较差 ,极易给经营者和使用者造成经济损失 ;采用同工酶等方法鉴定 ,由于仪器设备、药品价格较高 ,加之测试样品有限 ,代表性差 ,技术又不易掌握 ,很难普及 ,因此 ,在实际工作中迫 Purity of varieties is one of the important indexes of seed quality. At present, most purity tests of corn seeds rely on experience to make intuitive judgment, with poor accuracy, which can easily cause economic losses to operators and users. Using isozymes and other methods to identify, Due to the high cost of instruments and equipment, medicines, together with the limited number of test samples, the poor representation and the unpredictability of technology, it is hard to be popularized. Therefore, in actual work,