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对二棱大麦6个品种之间进行完全双列杂交,分析大麦抗赤霉病的遗传方式.结果表明,大麦抗赤霉病是作用相加的很多基因起作用的数量性状遗传,这些基因之间不存在上位性,只存在显隐性关系,抗性强的基因是显性.所计算的广义遗传力为0.60,狭义遗传力为0.45.一部分品种中存在母性效应.
The complete diallel cross between two cultivars of barley was used to analyze the genetic mode of barley scab resistance. The results showed that the resistance of barley to scab was a quantitative trait inherited by many genes that functioned together. There was no epistasis between these genes and there was only a recessive relationship between them. The genes with strong resistance were dominant. The calculated generalized heritability is 0.60 and the heritiation narrowly is 0.45. Some varieties have maternal effects.