新疆农业科学2017，Vol.54Issue(3)：489-496,8.DOI:10.6048/j.issn.1001-4330.2017.03.013
南疆棉区棉花立枯病菌和红腐病菌种间及种内菌株间的致病力比较
Pathogenicity Comparison between Rhizoctonia solani and Fusarium moniliforme with Their Respective Isolate Pathogens in Cotton Belt in the South of Tianshan Mountains, Xinjiang
摘要
Abstract
[Objective] Cotton Rhizoctoniosis and red rot disease are two main seedling diseases in Xinjiang cotton area.In order to obtain a strong pathogenic strain,this project aims to screen resistant varieties and disease control agents against the two diseases.[Method]In this project,30 Rhizoctonia solani and 30 Fusarium moniliforme isolated from cotton fields in south of Tianshan Mountains were used to conduct the comparative study on the pathogenicity of the susceptible cultivars(Jimian 11)after artificial inoculation.[Result]The comparison results showed that: There were significant differences in pathogenicity among the two pathogens strains;There were 8 strong pathogenic strains among the 30 Rhizoctonia solani strains,accounting for 26.7％of the total;There were 6 strong pathogenic strains among the 30 Fusarium moniliforme strains,accounting for 20％of the total;The pathogenicity of Rhizoctonia solani was significantly higher than that of Fusarium moniliforme among the two pathogenic strains;There were significant differences in pathogenicity with the strains derived from different areas in the two pathogens;In the four cotton areas of southern Xinjiang,a strain pathogenic force derived from Bazhou cotton area was relatively virulent,and virulence strain derived from Kezhou cotton areas was relatively weak;There were significant differences in pathogenicity among different strains of the same pathogen in the same area.[Conclusion]The pathogenicity of Rhizoctonia solani is significantly higher than Fusarium moniliforme in the cotton belt in the south of Tianshan Mountains and there are significant differences in pathogenicity among the two pathogens and various source strains derived from different areas.关键词
新疆天山以南棉区棉花病害/红腐病/立枯病/致病力测定Key words
cotton disease in cotton belt in the South of Tianshan Mountains/determination of pathogenicity/ccotton red rot/cotton rhizoctoniosis分类
农业科技引用本文复制引用
周扬,吴琼,刘梦丽,白剑宇,李进,雷斌,郭庆元..南疆棉区棉花立枯病菌和红腐病菌种间及种内菌株间的致病力比较[J].新疆农业科学,2017,54(3):489-496,8.基金项目
公益性行业(农业)科研专项经费项目"作物根腐病综合治理技术方案""棉花苗期根腐类病害综合治理技术"专题(201503112-6)Supported by public welfare industry (Agriculture) research special funds project "Crop root rot comprehensive prevention and control technology program" "Cotton seedling root rot disease comprehensive treatment technology" special subject (201503112-6) （农业）
