摘要： 谷子不同品种对粒黑穗病的抗性差异很大，其中有79.5%的品种属感病或高度感病类型。谷子抗粒黑穗病的遗传背景十分复杂，遗传方式为多基因控制的数量遗传，遗传力为37.66%,超亲遗传比较明显。双亲发病株率平均值和差值与F₂高抗株率呈极显着的负相关，r=-0.8446∗∗和r=-0.8638∗∗.正确选配杂交组合对抗病育种的成败至关重要。

关键词: 谷子, 粒黑穗病, 抗性遗传

Abstract: There were great difference of resistance to kernel smut among foxtail millet varieties,of which there were 79.5% varieties with disease affication or high disease affication.The heredity background of resistance to kernel smut of foxtail millet was very complex.The model of the heredity was quantitative heredity with polygenic control and the heritability was 37.66%.The average and mission value of disease incidence of the parents was significantly negative correlative with high resistance ratio of F₂ progeny and r= -0.8446∗∗and -0 8638∗∗.Therefore,to select and mate the crosses correctly was very important to breed varieties resistance to kernel smut.

Key words: Foxtail millet, Kernel smut of millet, Resistant heredity

中图分类号: 

• S435.15