草原与草坪2026，Vol.46Issue(1)：56-62,7.DOI:10.13817/j.cnki.cyycp.2026.01.007
青贮玉米茎腐病拮抗真菌的筛选及盆栽防治效果
Screening of antagonistic fungi against silage corn stalk rot and evaluation of pot control efficacy
摘要
Abstract
[Objective]To effectively prevent and control silage corn stalk rot,twenty-seven biocontrol fungi ob-tained from primary screening were used as research objects to further screen high-efficiency biocontrol fungi.[Method]Biocontrol fungi with high antagonism activity against corn stalk rot were screened by plate confrontation method.The species of biocontrol fungi were identified through morphological observations and molecular biological analysis.Furthermore,the control effect on corn stalk rot and the growth-promoting effects of the candidate biocontrol fungi were evaluated via pot experiments.[Result]A specific strain,SL-5,with efficient antagonism against corn stalk rot was screened,and the inhibition rate was 56.46%.It was identified as Trichoderma koningiopsis based on morphological and molecular biological characteristics.The results of pot experiments showed that the biocontrol ef-fect of T.koningiopsis SL-5 fermentation liquid on corn stalk rot was 54.21%,and it had a significant growth-pro-moting effect on corn seedlings.[Conclusion]T.koningiopsis SL-5 screened in this experiment exhibits certain con-trol effects against corn stalk rot and demonstrates growth-promoting properties on maize seedlings,indicating poten-tial application value.关键词
青贮玉米/茎腐病/抑制率/拟康宁木霉/生防效果/促生作用Key words
silage corn/stalk rot/inhibition efficiency/Trichoderma koningiopsis/biocontrol effect/growth-pro-moting effect分类
农业科技引用本文复制引用
刘变变,陈楠,邢晓芳,汪亚溪,胡继辉,李惠霞..青贮玉米茎腐病拮抗真菌的筛选及盆栽防治效果[J].草原与草坪,2026,46(1):56-62,7.基金项目
甘肃省自然科学基金项目(23JRRA1424) （23JRRA1424）
