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从育种的过程来看,系统选种与杂交育种在本质上没有多大区别,其不同的是,杂交育种是在杂种的早期世代进行选择,而系统选种是在稳定的育成品种或因天然杂交尚有分离现象的品种中进行选择。因此,后者是前者的继续。这样在育成的品种中选择的材料既简单,选择摊子又小,重点材料容易掌握,收效快。1972年以来,我们先后在本县种植的“671”小麦,“早熟3号”大麦和“海紫尺八”大麦、“68—413”元麦等品种中,选择817个单株(穗)材料,经过几年连续试验观察比较,筛选出一
From the breeding process, the systematic selection and hybrid breeding in essence is not much difference, the difference is that hybrid breeding is the early generations of hybrids to choose, and the system is selected in the stable breeding varieties or natural hybrids There is still the phenomenon of separation of species to choose from. Therefore, the latter is the continuation of the former. This selection of bred varieties in the material is simple, choose small stalls, key materials easy to grasp, fast results. Since 1972, we have selected 817 plants (panicles) from “671” wheat, “precocity 3” barley and “sea zizyphus 8” barley and “68-413” Materials, after several years of continuous trial observation and comparison, screening out one