浅析玉米种子纯度不达标的原因以及提高的途径

Analyse the Reason Why the Purily of Corn Seed Cannot Reach the Standards and the Improvement Approach

玉米种子纯度达不到国家标准是由很多因素导致的,自交系的异质性、自交系利用世代过多、生物学混杂、田间管理措施不严、种子晾晒时去杂不彻底、人为掺假造假等。针对这些原因,可以采取以下一些途径来提高玉米种子纯度,使其能够达标:育种单位要有严谨的推广态度;从根本抓起,做好自交系的繁殖工作;建立稳定的专业化、商品化的种子生产基地;严格遵照《玉米制种技术操作规程》进行生产;种子收获、收购、脱粒期间严把种子质量关;健全管理机制。净化种子市场。

There are many reasons why the purity of conr seeds cannot reach the national standards,such as inbred lines heterogeneity;excess utlization generation of inbred lines;biology confounding;loosing field mangement;rogued by halves in seed airing;artifical concoction etc. Based on these reasons, some measures were taken to improve purity of seeds：careful expansion attiude,indred lines breeding,stable specializd and mechandizd seed production basis,strict conforming to “Corn seed growing operating specifications”,strict to close seed quality,integritying management system,purifying seed market.