沈阳农业大学学报2026，Vol.57Issue(3)：78-88,11.DOI:10.3969/j.issn.1000-1700.2026.03.008
绿色木霉菌对沙地花生产量和真菌群落多样性的影响
Effects of Trichoderma viride on the Yield of Peanuts and the Diversity of Fungal Communities in Sandy Soil
摘要
Abstract
[Objective]This study investigated the effects of different application rates of Trichoderma viride(0.75,1.5,and 3.0 g·m⁻²)on soil fungal community diversity in three peanut cultivars(Huayu 23,Liaohua 608,and Qinghua 6)in the sandy land of Zhanggutai,Zhangwu County,Liaoning Province.[Method]Different application concentration gradients of Trichoderma viride(0.75,1.5,and 3.0 g·m⁻²)were established to determine peanut yield under different concentrations and to analyze fungal community diversity.[Results]The results showed that Qinghua 6 responded most positively to the microbial agent,exhibiting high fungal diversity and significantly increased yield under all concentrations,making it the optimal matching cultivar.Huayu 23 showed stable yield increase across all treatments,while Liaohua 608 only slightly increased under JUN1.5 treatment.The application of T.viride significantly altered the structure of soil fungal communities,and the effects were co-regulated by inoculum concentration and peanut cultivar.Compared with the control,low and medium concentrations increased the species richness and diversity indices of the soil fungal community,whereas the high concentration exhibited inhibitory effects in some cultivars.At the phylum level,Ascomycota,Mortierellomycota,and Basidiomycota were identified as the dominant fungal groups.Venn analysis indicated that microbial inoculation increased the number of unique fungal operational taxonomic units(OTUs),but this number decreased with increasing application rate.LEfSe analysis revealed that the low-concentration treatment enriched the highest number of differential indicator taxa,whereas the high-concentration treatment markedly reduced it.[Conclusion]Overall,an appropriate application rate of T.viride can enhance soil fungal diversity and optimize community structure in peanut fields of sandy regions,whereas excessive high concentrations may reduce community complexity.These findings provide a scientific basis for microbial regulation and soil ecological restoration in peanut-growing sandy land ecosystems.关键词
绿色木霉菌/花生/真菌群落多样性/风沙地Key words
Trichoderma viride/peanut/fungal diversity/sandy land分类
农业科技引用本文复制引用
吕刚,王一焯,王锋佰,张靖凡,孔涛..绿色木霉菌对沙地花生产量和真菌群落多样性的影响[J].沈阳农业大学学报,2026,57(3):78-88,11.基金项目
辽宁省教育厅基本科研项目(自主选题服务地方项目)(LJ212410147029) （自主选题服务地方项目）
