粮食作物种子生产转到工业生产的基础上,必须强化新品种的繁殖,加速用于生产。种子生产的第一环节开始解决这个任务,也就是加速创造原种的速度。非黑土带中心区农科所研究指出,在冬小麦种子最初生产中,原种的再生产方法并不在本质上影响它们的产量性状。因此,在周期性的与单株选择交替条件下,遗传学上一致的可以采用集团选择,对所有品种,单株选择条件下原种入选数限于100个,集团选择条件下为300个。 On the basis of shifting the production of grain crops to industrial production, the breeding of new varieties must be intensified and accelerated for production. The first step in seed production begins to tackle this task, which is to speed up the creation of species. Studies by non-black soil centers in agronomic institutes point out that in the initial production of winter wheat seeds, the reproduction of primary species does not essentially affect their yield traits. Therefore, under the condition of cyclical alternation with single plant selection, the group selection can be adopted genetically consistently, and the number of original seed selection for all varieties and single plant selection conditions is limited to 100, while that for group selection is 300.