近年来玉米南方锈病在我国一些玉米产区逐年加重,已经严重威胁到玉米生产安全,但对这一病害的控制国内显得准备不足,没有形成有效的防控方法和技术。本研究,采用田间跟踪调查和离体接种方法研究了玉米南方锈病抗性的测定方法和技术,意在探寻实用、快速检测寄主抗锈性和锈病菌致病性变异的技术方法,并借此来认识山东省近年玉米主导品种对南方锈病的抗性及变化情况。结果显示,近3年山东省玉米主导品种多为感病或高感品种,并且骨干品种都是连续种植多年,每年更新的品种不过2、3个；与黄淮海地区主导玉米品种比较后发现,本地区玉米主导品种也与黄淮海地区的玉米主导品种重复率较高,这些可能是近年来本地区玉米南方锈病逐年加重甚至流行的一个重要原因,建议相关结构关注玉米锈病的危害性,尽快培育并推广可利用的抗病品种,建立有效的玉米南方锈病防控技术,控制该病害的进一步危害。
英文摘要:
: Southern corn rust in our country in recent years some corn production increased year by year, has been a serious threat to maize production safety, but control of the disease in domestic appear ill-prepared, no effective prevention and control methods and techniques., this study adopts the field track and in vitro inoculation method to study the determination method and technology of southern corn rust resistance, to explore practical, rapid determination of host resistance to rust and rust pathogenic mutation detection technique, and further testing in recent years in shandong province leading varieties of southern corn rust resistance.Results show that the leading variety for nearly three years in shandong province maize disease or Gao Gan varieties, and the backbone varieties are growing for many years in a row, the variety of updated annually but 2, 3;And huang-huai-hai region dominated the corn varieties comparison and found that the region"s leading varieties from corn and huang-huai-hai region leading varieties of corn repetition rate is higher, these may be the region"s southern corn rust increase year by year in recent years an important reason, even popular Suggestions related structure focus on the dangers of corn rust, foster and promote use of resistant varieties as soon as possible, establish an effective southern corn rust prevention and control technology, to control the disease of further damage.
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