Field Evaluation System for Resistance of Sweet Potato Stem Nematode

• 作者: Bian Xiaofeng Guo Xiaoding Jia Zhaodong Ma Peiyong Xie Yizhi
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 甘薯茎线虫 评估系统 评价体系 田间发病率 鉴定方法 鉴定结果 评价系统 试验误差
• 年，卷（期）: 2013,（3）
• 页码范围: 20-22
• 页数: 3页
• 分类号: S435.315.9

摘要

[Objective] The paper was to explore the field evaluation system for resistance of sweet potato stem nematode. [Method] The resistance of 525 accessions was evaluated using naturally induced identification method in diseased field from 2004 to 2009,and the accessions with resistance were selected. [Result] The field evaluation system for resistance of sweet potato stem nematode was affected by many factors. Non-uniform incidence in fields led to unstable identification results of certain materials. For test problems,some parameters of the existing evaluation system were corrected to reduce the experimental error. [Conclusion] The study provided the reference for further improvement of field evaluation system for resistance of sweet potato stem nematode.