高原农业2025，Vol.9Issue(6)：677-687,11.DOI:10.19707/j.cnki.jpa.2025.06.001
球毛壳22-10对小麦根腐病的防治效果研究
A Study of the Control Effect of Chaetomium globosum 22-10 on the Wheat Root Rot Disease
摘要
Abstract
The wheat scab and root rot disease,caused by Bipolaris sorokiniana,can occur throughout the entire growth period of wheat.It can lead to partial or total plant death and is one of the difficult diseases to control in wheat crop production.Given the significant application value of fungi from the genus Chaetomium in the biological control of plant diseases,this experiment aimed to explore the potential of using C.globosum 22-10 for the biological control of this disease.In this experiment,C.globosum 22-10 was selected to conduct flat confrontation and spore germination inhibition tests on Bipolaris sorokiniana,and the prevention and treatment group experiments were designed to study the field prevention and treatment effects of C.globosum 22-10 fermentation broth with different dilution ratios on leaf spot-type and root rot-type symptoms of wheat root rot.The results show that both the 1-fold and 3-fold diluted fermentation broth of C.globosum 22-10 had about 45%of the colony growth inhibition rate of Bipolaris sorokiniana,which was comparable to the effect of the chemical fungicide pyriferin;The 1-15-fold diluted fermentation broth of 22-10 inhibited the spore germination rate of Bipolaris sorokiniana by more than 85%,and could lead to malformation of the bud tube of pathogens and inhibit the elongation of the bud tube.The 1-5-fold diluted fermentation broth of C.globosum 22-10 had a preventive effect on root rot-type symptoms of wheat root rot by 87.50%～100.00%,and the treatment effect was 64.60%～96.46%;the prevention effect on leaf spot-type symptoms of wheat root rot was 76.23%～93.21%,and the treatment effect was 23.10%～90.83%.The prevention effect on wheat root rot of both symptoms was better than the treatment effect.This experiment confirmed that C.globosum 22-10 exhibited significant antagonistic activity against Bipolaris sorokiniana,effectively inhibiting the growth of its mycelium and the germination of its spores.Field trials also showed excellent control effects on wheat leaf spot and root rot symptoms.This research provides an effective candidate strain for the biological control of wheat scab and root rot disease,which is of great significance for promoting the development of green pesticides and the sustainable development of agriculture.关键词
球毛壳菌/小麦根腐病/抑菌效果/田间防效Key words
Chaetomium globosum/Wheat root rot/Antibacterial effect/Field control effect分类
农业科技引用本文复制引用
岳海梅,陈慧,文家乐..球毛壳22-10对小麦根腐病的防治效果研究[J].高原农业,2025,9(6):677-687,11.基金项目
国家自然科学基金(31760006) （31760006）
2025年中央财政支持地方高校发展改革专项资金(YJSXK2025-05). （YJSXK2025-05）
