在鲤鱼品种的杂交育种试验研究中,多限于二个亲本间的杂交(称单交),已取得一些成效。为了进一步提高杂种优势,近年来国内外已由单交向诸亲的复交实验方面发展,我们于1980年开始试验,并首先取得了三杂交鲤的结果,初步形成生产力。这对生产实践及杂交育种的理论研究方面具有重要 In the crossbreeding trial of common carp varieties, it was limited to the cross between two parents (called single cross), and some results were achieved. In order to further improve the heterosis, we have been experimenting with the experiment of compounding diplomatic relations both at home and abroad in recent years. We started the experiment in 1980 and first achieved the results of the three hybrid carp and initially formed the productive forces. This is of great importance to the theoretical study of production practices and hybrid breeding