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从研究作物F_1的优势、显性效应及配合力入手,探索其遗传规律,应用于育种实践的报道尚多,但应用于杂种优势育种的报道较少,而用于油菜杂种优势的研究还未见有报道。为立足于甘兰型自交不亲和系杂交油菜强优组合的选育,探明杂种在本地区的优势及显性情况,并通过配合力及遗传力的估算,了解F_1的遗传现象,进而为本地区杂优育种的亲本选择和组合配制提供理论依据,为自交不亲和系杂种的遗传积累资料,特进行本试验。
Based on the study of the superiority, dominant effect and combining ability of F_1, the genetic law was explored and there were many reports about its application in breeding practice. However, few reports were reported on the application of heterosis breeding. However, the research on the heterosis of rapeseed See reports. Based on the breeding of the excellent combination of rapeseed (Brassica napus L.) selfing incompatible lines, the dominant and dominant heterosis of hybrids in the region were determined. Through the analysis of the combining ability and heritability, the genetic phenomenon of F_1, This provided a theoretical basis for the selection of parental combinations and combinations of hybrids for hybrid breeding in this area, especially for the genetic accumulation of hybrids of self-incompatible hybrids.