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。
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.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2006年第1期31-33,共3页
Journal of Hebei Agricultural University
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
关键词
枣疯病
病情
分级体系
Jujube witches＇ broom
state of an illness
grading system
different level
