东北春玉米区主推玉米品种抗玉米叶斑病鉴定与评价

摘要

Using artificial inoculation identification method, resistance of leaf turcicum disease including leaf blight and gray leaf spot of 177 main varieties was evaluated. The results showed that 154 varieties were resistant to leaf blight, accounting for 87.0% of the total. 23 varieties were susceptible to leaf blight, accounting for 13% of the total. 140 varieties were resistant to gray leaf spot, accounting for 81.8% of the total. 31 varieties were susceptible to gray leaf spot, accounting for 18.2% of the total. 120 varieties were resistant to both two diseases, accounting for 70.2% of the total.%试验采用人工接种鉴定技术方法,对春玉米区177份主推品种进行主要叶斑病—大斑病、灰斑病抗性评价.结果表明:对大斑病表现抗病类型(高抗-中抗)的品种154份,占总数的87.0％,对大斑病表现感病类型(感病-高感)的品种23份,占总数的13.0％.对灰斑病表现抗病类型(高抗-中抗)的品种140份,占总数的81.8％,对灰斑病表现感病类型(感病-高感)的品种31份,占总数的18.2％,筛选出兼抗2种病害的品种120份,占总数的70.2％.