节点文献
枣疯病病情分级体系研究
Grading system of jujube witches’ broom symptom
【摘要】 在多年调查研究基础上,根据病原的浓度、症状表现和病情的可控程度等,提出了组织、单枝、单株、枣园和枣区5个水平的病情分级指标体系,可供枣疯病研究及其防治效果评价等参考。
【Abstract】 Based on the detecting and investigating systematically for many years,grading system of Jujube Witches’ Broom in different levels,i.e.tissue,branch, tree,orchard and region level,was established.This system will provide reference for studying and valuing curing effect of Jujube Witches’ Broom.
【关键词】 枣疯病;
病情;
分级体系;
【Key words】 Jujube witches’ broom; state of an illness; grading system; different level;
【Key words】 Jujube witches’ broom; state of an illness; grading system; different level;
【基金】 国家自然科学基金项目(39670523、39970523);河北省自然科学基金项目(300129)资助
- 【文献出处】 河北农业大学学报 ,Journal of Agricultural University of Hebei , 编辑部邮箱 ,2006年01期
- 【分类号】S436.65
- 【被引频次】25
- 【下载频次】241