1.从籽粒上看。纯度高的种子比较饱满、均匀、无畸形、瘪粒和破半粒。 2.从颜色上看。优良的玉米种子,粒顶为浅红黄色,有光泽,无其它不良颜色。 3.看脐部是否霉变。正常的玉米种子,脐部为浅黄色或乳白色,如果脐部发现浅绿色,说明种子已发生霉变。 4.发芽实验鉴别。通过发芽鉴别牙鞘的颜色,生长 From the grain point of view. High purity seeds more full, uniform, no deformity, shriveled and broken half a grain. 2. From the color point of view. Good corn seeds, grain top light red yellow, shiny, no other bad colors. 3. Look umbilical whether moldy. Normal corn seeds, umbilical pale yellow or milky white, if the umbilical found in light green, the seeds have mildew. 4 germination experiment identification. Identify the color of the tooth sheath by germination and grow