玉米弯孢叶斑病研究现状、问题与展望

玉米弯孢叶斑病Curvularia lunata(Wakker)Boed]是我国近几年玉米上发生的一种重要病害,对玉米高产稳产构成严重威胁。本文介绍了玉米弯孢叶斑病病原、发生规律、危害损失、抗病机制以及防治技术等主要研究进展及其存在问题。

Progresses, problems and prospects of maize Curvularia leaf spot disease

Curvularia leaf spot of maize caused by Curvularia lunata has been an important disease happened in maize in recent years, and has formed a new risk to maize production. Progress as madein basic research on pathogen, occurrence regularity, transmission dynamics, injury losses caused by the disease, inheritance and mechanism of resistance to Curvularia leaf spot of maize, and control techniques for managing the disease were briefly discussed. The problems in research on current maize Curvularia leaf spot include the lack of techniques for identifying resistance to the disease, highly stable resistance resources, and effective means to study on inheritance and breeding of resistance to the disease. The strategies in managing the disease were applying crossing and genetic engineering to select high resistance resources to Curvularia leaf spot of maize, and applying molecular biotechniques to study the inheritance and breeding of resistance to the disease.