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用5×5半双列杂交研究甘蓝型低芥酸油菜单株产量的遗传,结果表明:供试的甘蓝型低芥酸油菜品系中,单株产量的遗传符合加性显性模型,显性性质为超显性,平均显性度为1.404。显性基因约为隐性基因的3倍多,并且多数增效基因表现显性,但也有显性的减效基因存在。单株产量的广义遗传力h_B~2=71.4％,狭义遗传力h_N~2=33.18％。供试亲本显性效应的强弱依次为81007>81006>81018>81004>81033,增效基因的多少依次为81018>81006>81007>81004>81033。一般配合力的大小依次为81018>81006>81004>81033>81007。
The results showed that the inheritance of single-crop yield in B. napus L. erucic acid lines accorded with additive dominance model and dominant trait For the super dominant, the average dominance of 1.404. Dominant genes are about three times more than recessive genes, and most of the synergistic genes are dominant, but there are also dominant diminished genes. The heritability of broad-leaved individuals per plant h_B ~ 2 = 71.4%, narrow heritability h_N ~ 2 = 33.18%. The dominant effects of the tested parents were 81007> 81006> 81018> 81004> 81033, and the number of synergistic genes was 81018> 81006> 81007> 81004> 81033. The general combining ability of the order of 81018> 81006> 81004> 81033> 81007.