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将含有青枯病抗性基因的马铃薯二倍体solanumphureja和s.vernei的原始材料E与另外两种材料C、D杂交获得F1和BC1两个群体。对其中140个基因型做温室苗期人工接种鉴定，结果表明，马铃薯青枯病的群体抗性分离变异范围较大，抗病性表现复杂，主要表现为阻止病菌入侵，推迟始发病时间，延长潜伏期，减缓发病速度和降低死亡率等5个方面。对抗病性相关参数分析表明，马铃薯青枯病抗性是受隐性多基因控制的。
Two populations of F1 and BC1 were obtained by crossing the original material E of potato diploid solanumphureja and s.vernei containing the bacterial wilt resistance gene with the other two materials C and D. Among 140 genotypes, artificial inoculation of greenhouse seedlings was conducted. The results showed that the range of population resistance variation of potato bacterial wilt was large and the disease resistance was complicated. The main manifestations were to prevent the invasion of germs, delay the onset of onset, Extend the incubation period, slow down the rate of onset and reduce mortality and other five aspects. Analysis of disease resistance related parameters showed that bacterial wilt resistance was controlled by recessive polygenes.