谢文华 谢大森. 棱角丝瓜霜霉病抗性遗传分析[J]. 华南农业大学学报, 1999, (4): 20-23.
    引用本文: 谢文华 谢大森. 棱角丝瓜霜霉病抗性遗传分析[J]. 华南农业大学学报, 1999, (4): 20-23.
    Xie Wenhua,Xie Dasen. Analysis of Resistance Heredity in Ridgegourd to Downy Mildew[J]. Journal of South China Agricultural University, 1999, (4): 20-23.
    Citation: Xie Wenhua,Xie Dasen. Analysis of Resistance Heredity in Ridgegourd to Downy Mildew[J]. Journal of South China Agricultural University, 1999, (4): 20-23.

    棱角丝瓜霜霉病抗性遗传分析

    Analysis of Resistance Heredity in Ridgegourd to Downy Mildew

    • 摘要: 采用6×6完全双列杂交,按Hayman模型对丝瓜霜霉抗性进行分析研究结果表明:抗性的一般配合力和特殊配合力均重要,该性状适合“加性-显性”模型:以加性效应为主,表现为不完全显性,显性基因比例较高,狭义遗传力hN^2=69.63%;加性基因至少为4对。

       

      Abstract: The resistane heredity of Ridgegourd downy mildew was studied by a diallel cross arnong six culivare. The results showed that both general companing ability and specifil companing ability were important to resistance; the heredity of resistance could be explained by the additive dominative genehcal model. The ratio of dominant gene by recessive alleles, heritability in narrow sense was 69. 63%. The least number of additive gene was 4.

       

    /

    返回文章
    返回