良种繁育：整个过程只有繁，没有选和育。整个程序是一级一级的繁，只有种子群由小到大的重复繁殖，没有选和育的效应，所以有利于保持原种的优良种性。
良种繁育(cultivating superior varieties and breeds)
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莜麦的良种繁育的论文_农业科学论文_中国论文网 关键词:良种繁育;方法;注意事项;种子检验 [gap=327]key words: the improved variety is beeded; method ; precautions; the seed examining
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... 作业方式 operation way 良种繁育 elite seed production 苗木分级 seedling gradation ...
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摘要: 良种繁育 ( multiplication of superior cultivars ) 为果树生产培育大量纯正优质种苗的制度与方法。
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So the basic aim for cotton cultivar maintenance was the combination of selfing with selectinn which resulted in homozygous and stable population.
据此，连续自交结合系谱选择，造成纯合稳定的基础群体，是棉花良种繁育技术的基本目标。
参考来源 - 期刊学术社区We should reinforce base planning construction of cow husbandry, information and social service system of cow husbandry, training system of farmers. We should established fine breeding system, technological innovation and application system, quality supervision system.
即:完善现行有关政策、完善管理体制、完善动物疾病防疫体系;加强奶牛养殖基地规划建设、加强奶牛养殖信息与社会化服务体系、加强农民培训体系;建立健全奶畜良种繁育体系、建立健全奶牛养殖科技创新与应用体系、建立健全奶牛养殖相关质量监测体系。
参考来源 - 内蒙古呼和浩特市乳业发展与奶牛养殖模式分析·2,447,543篇论文数据，部分数据来源于NoteExpress
进一步完善牧草育种及良种繁育体系。
Perfect forage breeding, seed production and multiplication system.
本文探讨了广东省吴川县良种繁育场人工引流熊胆粉与天然熊胆粉药理作用的比较。
In this essay, we discuss the function comparison of the powder of artificial bear gall and that of natural bear bile on pharmacology.
实践证明：“株系循环法”具有多快好省的优点，构成了农作物良种繁育新的技术体系。
The practice has proved that 'plant-line cycle method' has the advantage of greater, faster, better and more economical results, and constitutes the new technical system of crops seeds production.
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