【摘要】 对全国十省在不同时期育成的206个大豆推广品种的系谱分析结果表明,系统育种逐步为杂交育种所替代.在杂交育种中,以地方品种与中间材料作亲本的组合类型一直占有重要的地位.值得注意的是,利用中间材料杂交育成的品种迅速增加。今后的杂交育种应充分利用中间材料或现在推广的血缘关系比较复杂的品种作为杂交亲本,争取最大的育种效益.更多还原

【Abstract】 206 soybean cultivars developed at various stage in national ten provinces were used for analyzing the formation of their pedigrees.The results showed that pure line breeding method was gradually replaced by hybrid method.Cross types using local cultivars and breeding lines as parents have been occupying an important place in breeding.It is worthy noticing that varieties developed from the crosses between breeding lines are increasing rapidly.So breeding lines or varieties with more complex genetic backbround are used as parents to get the best breeding effects.更多还原