农学学报2025，Vol.15Issue(6)：16-22,7.
设施栽培青菜和小白菜根肿病空间分布及抽样技术研究
Study on Spatial Distribution and Sampling Technique of Clubroot Disease in Brassica rapa var.chinensis and Brassica rapa var.glabra Under Greenhouse Cultivation
摘要
Abstract
Brassica rapa var.chinensis and Brassica rapa var.glabra were employed as experimental materials,with the sampling methods such as aggregation index,m*-m regression analysis and Taylor's power law,and the spatial distribution pattern and characteristic of clubroot disease under greenhouse cultivation were analyzed,and the sampling techniques were studied to further improve the investigation and prediction ability of the disease.The result showed that the disease developed severe when the test area was closer to the center of the greenhouse,and relatively light when it was near the edge in the two crops.Test of aggregation index showed that the main trends of clubroot disease were fitted to uniform distribution under the condition of heavy occurrence,but aggregation distribution would also occur in the lower occurrence area.Regression analysis of m*-m and Taylor's power law indicated that the individual colony was the basal component of the spatial distribution of clubroot disease and they attracted each other slightly.The distribution pattern of individual colony tended to be uniform distribution,and this trend was increased with the increasing disease grade of individual plant in the two crops.On the basis of the above analysis,the optimal theoretical sampling model and sequential sampling model of clubroot disease in the two crops were presented.This study results were helpful to improve efficiency in the investigation and sampling of clubroot disease,and it provided evidence for early-forecast and prevention decision.关键词
设施栽培/青菜/小白菜/根肿病/空间分布型/抽样技术/聚集度指标法/最适理论抽样模型Key words
greenhouse cultivation/Brassica rapa var.chinensis/Brassica rapa var.glabra/clubroot disease/spatial distribution pattern/sampling technique/aggregation index methods/optimal theoretical sampling model分类
植物保护学引用本文复制引用
洪文英,吴燕君,朱徐燕,华永刚,汪群,何林海,粟贵俊,高凯..设施栽培青菜和小白菜根肿病空间分布及抽样技术研究[J].农学学报,2025,15(6):16-22,7.基金项目
2023年浙江省蔬菜产业技术项目"设施叶菜连作障碍生态防控技术示范" （）
浙江省余杭蔬菜"浙农英才"工作站项目. （）
