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1 海南繁殖的必要性多年来,我省玉米自交系生产经常完不成春定计划,难以保证下年制种亲本的供应。这一问题的产生,除了与原种纯度、基地的技术管理水平和基地的地理选择等环节有一定的关系外,主要还有以下几方面原因。 1.1 育种单位的需要:为了加快新、优杂交种的选配,加快新自交系品种的纯化,我省科研、院、校所,自60年代开始进行海南育种,到目前为止,我省推广使用的玉米品种
The need for breeding in Hainan Over the years, the production of maize inbred lines in our province has often failed to reach a certain level in spring, making it difficult to guarantee the supply of seed for next year’s seed production. In addition to the purity of the original species, the technical management level of the base and the geographic selection of the base, there are some relations between this issue and the following reasons. 1.1 Breeding Unit Needs: In order to speed up the selection of new and excellent hybrids and speed up the purification of new inbred lines, our province has carried out Hainan Breeding since the 1960s in scientific research institutes and institutes. So far, the promotion of our province Corn varieties used