云南省玉米锈病发生情况调查及品种抗性测定  

Investigation of Corn Rust and Evaluation of Cultivar Resistance in Yunnan

作　　者：周惠萍[1] 李月秋 吴景芝[1] 肖文祥 赵正龙[1] 何月秋[4] 

机构地区：[1]云南农业大学植物保护学院,云南昆明650201 [2]云南省大理州植保植检站,云南大理671000 [3]云南省保山市植保植检站,云南保山678000 [4]云南农业大学农学与生物技术学院,云南昆明650201

出　　处：《江西农业大学学报》2011年第3期498-501,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：云南省支撑计划项目(2006NG19);云南省行业体系项目

摘　　要：为明确云南省玉米锈病的发生规律和品种抗性,从2007—2009年在云南省玉米产区的病圃试验地和锈病常发地区对玉米锈病进行了田间病害调查和田间抗性测定。结果表明,玉米锈病发病面积占云南省玉米种植面积的15.11%～19.29%,有从次要病害上升为主要病害的趋势。云南省玉米锈病的始发期为6月下旬,此时正值大喇叭口期,随着雨季的到来发病逐渐加重,8月上旬发病加快,8月下旬达到高峰进入稳定期;田间抗性测定结果发现,在576份玉米品种中高抗品种仅7份,抗病品种89份,中抗品种95份,中抗以上品种占33.16%。To understand corn rust occurrence and cultivar resistance,the disease was surveyed in the field in 2007,2008,and 2009.The results showed that the occurrence area of this disease accounted for 15.11% ～19.29% of the whole corn planting area,showing the disease increases year by year throughout Yunnan.Corn rust occurred in late-June when corn was at the flared stage and weather was favorable for the disease development.With the rainy season coming,corn rust got progressively worse and became rapidly epidemic in early August.The incidence peak was in late August.Only 7,89 and 95 cultivars were highly resistant,resistant and moderately resistant to corn rust,respectively,accounting for 33.16% among the 576 cultivars in the disease nursery.

关 键 词：玉米 锈病 抗性 

分 类 号：S435.131.4[农业科学—农业昆虫与害虫防治]