生产实践证明,玉米杂交种纯度电泳鉴定技术是一项简便、快捷、经济、可靠的玉米杂交种纯度鉴定技术。它的应用和推广可及时有效的预见和评价种子质量,对玉米种子在生产经营过程中的质量控制和提高具有十分重要的意义。但大量的生产实践也证明,玉米杂交种纯度电泳鉴定结果在一定程度上总是低于田间小区种植鉴定结果。笔者就这一生产实际对我县1999年生产经营的农大3138、中单306等6个品种进行了品种间电泳纯度鉴定与田间种植鉴定对比试验,找出电泳纯度鉴定结果低于田间种植鉴定结果的主要原因,为生产上 Production practice has proved that the purity of maize hybrid electrophoresis identification technology is a simple, fast, economical and reliable maize hybrid purity identification technology. Its application and promotion can predict and evaluate the quality of seeds timely and effectively and is of great significance to the quality control and improvement of corn seeds in their production and operation. However, a large number of production practices also prove that the purity of maize hybrid electrophoresis identification results to some extent, always lower than the field planting identification results. The author of this actual production of our county in 1999, production and operation of Nongda 3138, Zhongdan 306 and other six varieties of electrophoresis purity between varieties and field planting identification contrast test to find the electrophoresis purity identification results lower than the field planting identification results The main reason for the production