作物品种间杂交,F_1代普遍存在优势。这种优势的表现,是通过基因的显性和上位性的作用而产生。特别是显性作用贡献的优势,在育种工作的早期世代很难判明组合的优劣,材料的优劣。为了探索育种中亲本选配的问题,需进行性状遗传规律的研究,以增强育种工作的预见性。本文对甘蓝型油菜杂种F_1及其亲本的十一种数量性状作了一些分析与研究,现报道如下: The cross between crop varieties, F_1 ​​generation prevails. This advantage is manifested by the dominant and epistatic effects of genes. In particular, the dominant role of the contribution of the advantages of early breeding in the early generations is difficult to determine the merits of the combination, the pros and cons of the material. In order to explore the issue of parent matching in breeding, the genetic law of traits needs to be studied in order to enhance the predictability of breeding work. In this paper, the rape F1 hybrid F1 and its parents of some quantitative traits made some analysis and research, are reported as follows: