茄子黄萎病抗性的杂种优势及遗传

Preliminary Study on the Heterosis and Heredity of the Resistance to Verticillium Wilt in Eggplant

选取 6份对黄萎病具有抗感差异的茄子材料 ,利用半双列杂交第 2种设计方法配制组合 ,调查人工灌根后的抗病指数。结果表明 :茄子对黄萎病的抗性存在一定的杂种优势 ,F1与双亲均值有很强的相关性 ;抗性遗传不符合“加性—显性”模型 ,且至少受

eggplant materials involving resistant and susceptible were combinated according to Griffing—2 and Index of resistance to V.wilt was investigated after perfusing pathogenus fungi along root.The results showed that:the heterosis of resistance existed in the eggplant.The resistance index of eggplant to V.wilt between F 1 and its parents was positive correlation.The heredity of resistance character wasn't consistent with the additive-dominant model and controled by 2 groups of dominant genes at least.