玉米大斑病广谱抗性外引自交系的发掘与抗病基因初步鉴定

肖明纲, 宋凤景, 孙兵, 左辛, 赵广山, 辛爱华, 李柱刚

Exploration of Foreign Maize Inbred Lines with Broad Spectrum Resistance to Northern Corn Leaf Blight and Preliminary Identification of Resistance Genes

Ming-Gang XIAO, Feng-Jing SONG, Bing SUN, Xin ZUO, Guang-Shan ZHAO, Ai-Hua XIN, Zhu-Gang LI

表2 7个F2群体对大斑凸脐蠕孢的抗性反应

Table 2 Reactions of seven F2 populations to Exserohilum turcicum of northern corn leaf blight

杂交组合 Cross 抗病植株数 R 感病植株数 S 分离比 χ2 P值 P-value 获白/A04 Huobai/A04 448 132 1.5540 0.2125 获白/A11 Huobai/A11 416 168 4.4201 0.0355 获白/A24 Huobai/A24 400 160 3.8095 0.0510 获白/F02 Huobai/F02 438 130 1.3521 0.2449 获白/F05 Huobai/F05 438 142 0.0828 0.7736 获白/R01 Huobai/R01 454 158 0.2179 0.6407 获白/G02 Huobai/G02 432 172 3.8940 0.0485