摘要
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．
Varieties of two -rowed barley dual biserialed, their genetic resistanceto scab were analysed. The result showed that barley resistance to scab wasquantitative character inheritance which the gene action was additive, they onlyhad dominant and recessive relation, the gene was dominant with high resistance. After calculating, board-sense heritability was 0.60, restricted heritability was0.70. There were maternal effects in some varieties.
关键词
大麦
赤霉病
抗性遗传
Wheat
Scab
Resistant heredity
