1 强化组织措施,搞好全面质量管理 1.1 坚持“统繁、联供,县制”玉米杂交繁供体系,确保自交系纯度。玉米自交系的纯度是决定杂交种优势高低的基本条件,是玉米种子工作的关键。繁育和利用高纯度自交系制种是种子部门的首要职责。多年实践证明,由省统一建立玉米自交系穗行圃、原种田、统繁田,由省市联合组织供应繁殖亲本,由县公司安排基地制 1 Strengthen the organizational measures and improve overall quality management 1.1 Adhere to the “system of traditional, joint supply, county ” hybrid system of hybrid corn to ensure the purity of inbred lines. The purity of maize inbred lines is the basic condition for determining the superiority and inferiority of hybrids, and is the key to the work of maize seeds. Breeding and utilization of high purity inbred lines is the seed department’s primary responsibility. Years of practice has proved that the establishment of a unified system of corn inbred lines by the province spike nursery, the original farming, the system Fanti, by the provinces and cities syndicate breeding parents arranged by the county base