种子是不可代替的重要生产资料,是一种具有生命的特殊商品,种子的纯度是影响产量的直接因素。目前,常规作物的品种纯度往往被很多人所乎视,直接影响粮食产量和农民的经济收入。所以常规作物种子的防杂保纯是种子生产亟待解决的问题。 Seeds are irreplaceable important means of production, is a special commodity with life, the purity of the seeds is a direct factor affecting the yield. At present, the purity of varieties of conventional crops is often overlooked by many people and directly affects the output of grain and the economic income of farmers. Therefore, conventional crop seeds are not resistant to impurities in pure seed production problems to be solved.