江西农业学报2024，Vol.36Issue(2)：47-53,7.DOI:10.19386/j.cnki.jxnyxb.2024.02.008
马铃薯土传病原菌胁迫对其根际土壤可培养微生物的影响
Effects of Potato Soil-borne Pathogen Stress on Culturable Microorganisms in Rhizosphere Soil
摘要
Abstract
The effects of soil-borne pathogens on the growth and development of potato plants and the number of culturable microorganisms in rhizosphere soil were studied by artificial inoculation and dilution plate counting method.The results showed that the emergence rate,plant height,leaf SPAD value and tuber yield of potato were not affected by soil-borne pathogens.The addition of soil-borne pathogens significantly increased the incidence of potato diseases.The number of culturable microorganisms in potato rhizosphere soil increased first and then decreased during the whole growth period,and the order was bacteria>actinomycetes>fungi.The stress of scab pathogen stress can significantly increase the number of culturable bacteria and fungi in potato rhizosphere soil.Powdery scab pathogen stress can significantly increase the number of bacteria,fungi and actinomyces.The stress of bacterial wilt pathogens promoted the growth of bacteria in rhizosphere soil,but inhibited the growth of fungi and actinomyces.The incidence of potato scab and powdery scab was negatively correlated with the number of culturable actinomycetes in soil.关键词
马铃薯/土传病原菌/生物学特性/根际土壤/可培养微生物Key words
Potato/Soil-borne pathogen/Biological characteristics/Rhizosphere soil/Culturable microorganism分类
农业科技引用本文复制引用
许改换,刘霞,刀剑,邓琳梅,黄勋,杨俐,周昆燕,杨艳丽..马铃薯土传病原菌胁迫对其根际土壤可培养微生物的影响[J].江西农业学报,2024,36(2):47-53,7.基金项目
云南省重大科技专项(202102AE090018) （202102AE090018）
国家重点研发计划课题(2018YFD0200808) （2018YFD0200808）
云南省现代农业与马铃薯产业技术体系(2020KJTX03). （2020KJTX03）
