2014年河南全省玉米青枯病大爆发。我们调查了25个品种的发病情况,依据相关抗性标准,将浚单509和豫单606归为高抗品种,金赛38和浚单3136划为抗病品种,其它21个品种均为高感品种；确定以5%的产量损失率为划分耐病性标准的临界值,耐青枯病品种有浚单509、豫单606、金赛38、浚单3136、怀玉5288、桥玉8号、XY046、正玉10号、黎乐66、伟科702、浚单29。
英文摘要:
Due to the meteorological factors, Henan province had a large-scale outbreak of Corn Stalk Rot in 2014. We have investigated the morbidity of 25 varieties. According to the relevant resistance standards, Xundan 509 and Yudan 606 were classified as highly resistant varieties, Jinsai 38 and Xundan 3136 were classified as resistant ones, the other 21 samples were highly susceptible varieties. Using the yield loss rate of 5% as the critical value of disease tolerance standard, Xundan 509, Yudan 606, Jinsai 38, Xundan 3136, Huaiyu 5288, Qiaoyu 8, XY046, Zhengyu 10, Lile 66, Weike 702 and Xundan 29 were divided into tolerant varieties of Corn Stalk Rot.
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