专用型大豆新品种黔豆3号、4号选育过程及方法的分析探讨

Analysis on breeding processes and methods of two new specialized soybean varieties Qiandou 3 and Qiandou 4

专用型大豆新品种黔豆3号、黔豆4号是通过有性杂交选育而成的早熟、高蛋白优质大豆品种。其亲本的选配是严格地根据育种目标而定的；杂交后代的选择采用综合选择法与摘英法相结合的选育方法，同时结合南繁加代以加快育种进程。这两个品种的育成，较好地解决了早熟与高产，优质与高产的矛盾，为专用型大豆新品种的选育提供了一个较好的例证。

Qiandou 3 and Qiandou 4 Varieties with earvy-mature and tigh protein content respectively, were bred out from cross. Their parents were chosen seriously on the basis of breeding objective. The synthetical selection and picking-pod way were used in segregative generations that were planted in Han nan in winter for shortening the span of breeding. The breeding methods of Qiandou 3 and Qiandou 4 Successfully resolved the contradiction of early-mature and tigh quality with tigh yield. which put forward a good example for specialized soybecm breeding