南方玉米锈病的发生及防治对策

南方玉米锈病P[ucciniapolysoraunderw.]是近几年我国玉米主产区暴发流行的一种新病害。该病在重病区已上升为像大小斑病及弯孢菌叶斑病一样的新的主要病害。对锈病的发生情况、症状、病原、发病规律、发病条件、危害损失、综合防治等方面进行了综述,提出了以抗病育种为核心的综合防治方法。

The Emergence of Southern Corn Rust and Its Prevention-control Countermeasure

Southern corn rus(Puccinia polysora underw.) is a new disease that breaks out in the maize producing region of China corn area in recent years.In its serious zone,this disease has already become a new disease as Exserohilum turcium,Bipolaris maydis and curvularia lunate(Wakker) Boed.The emergence situation,symptom,patho-geny,emerging regular,occurring condition,yield-loses and comprehensive preventing respectively were summarized in this thesis.At the same time,the integral preventing direction that taking disease-resistant breeding as the core was also proposed.