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.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
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
关键词
玉米
锈病
抗性
maize
corn rust
resistance
