1 前言推广优良的作物品种对提高作物产量是关键的因素,良种的纯度又是良种优良性状的保证,所以在玉米良种的生产和销售过程中,如何提高和保证良种纯度是种子工作者非常重视的问题。然而由于缺乏快速、准确的鉴定玉米良种纯度的方法,常有人为或非人为造成的假劣种子在市场上流通,给国 1 Introduction The promotion of fine varieties of crops is the key factor to increase the yield of crops. The purity of varieties is also the guarantee of fine traits. Therefore, how to improve and ensure the purity of varieties in the production and sales of improved varieties of seeds is the focus of seed workers The problem. However, due to the lack of a rapid and accurate method for identifying the purity of corn varieties, counterfeit seeds, often caused by man-made or non-human, are circulated in the market,