采用什么样的方法获得较好的种子,是原种生产的核心。现在传统性的原种生产一般方法是单株选择、分系比较、混合繁殖的三个环节,三个步骤。所谓单株选择,即在所设置的选择箍中选择单株;所谓分系比较,即将所选的单株进行“行、系比较”,所谓 What kind of method to get a better seed is the core of the original production. Now the traditional method of production of the original species is a single plant selection, the Department of comparison, the three aspects of mixed breeding, three steps. The so-called single plant selection, that is set in the selection of the hoop in a single plant; the so-called fractional comparison, the selected plant will be “line, the Department of comparison,” the so-called