植物研究2025，Vol.45Issue(3)：460-470,11.DOI:10.7525/j.issn.1673-5102.2025.03.015
红松生长和根际土壤酶活性对紫丁香蘑菌剂接种的响应
Response of Pinus Koraiensis Growth and Rhizosphere Soil Enzyme Activity to Lepista nuda Inoculation
摘要
Abstract
This study investigated the effects of Lepista nuda inoculation at different doses on the growth of Pinus koraiensis seedlings and rhizosphere soil enzyme activity,aiming to provide technical support for cultivating mycorrhizal P.koraiensis seedlings and forestation.Four-year-old P.koraiensis seedlings were treated with four doses of L.nuda inoculant.Growth parameters,soil nutrient content,and rhizosphere soil enzyme activity were measured and analyzed.Correlation analysis was conducted to elucidate the responses of seedling growth and soil enzyme activity to L.nuda colonization.Key findings were that:(1)L.nuda colonization significantly enhanced seedling growth,at an optimal dose of 150 g·plant-1,plant height,ground diameter,fresh weight,and dry weight increased by 29.07%,25.69%,38.16%,and 57.44%,respectively,compared to the control.Mycorrhizal colonization rate and root activity increased significantly in the inoculation treatment compared to the control.(2)Inoculation treatments exhibited higher soil nutrient content than the control,at a dose of 150 g·plant-1,the content of soil organic matter,available nitrogen,total nitrogen,total phosphorus,and available phosphorus increased by 60.67%,31.46%,35.23%,72.22%,and 35.91%,respectively.(3)All doses of L.nuda inoculation enhanced rhizosphere soil enzyme activity,with the maximum increment at a dose of 150 g·plant-1.(4)Correlation analysis revealed significant positive relationships between mycorrhizal colonization rate and root activity,biomass(dry/fresh weight),growth parameters(height/diameter),the contents of soil organic matter,total nitrogen/phosphorus,available nitrogen,and activities of sucrase,urease,and phosphatase.Soil available phosphorus content was positively correlated with phosphatase activity,while available nitrogen content was positively correlated with content of soil organic matter,and activities of urease and phosphatase.In conclusion,L.nuda inoculation markedly promoted P.koraiensis growth by regulating soil enzyme activity and nutrient cycling,with 150 g·plant-1 identified as the optimal inoculation dose.The findings of this study provided valuable references for the cultivation of mycorrhizal P.koraiensis seedlings and improvement of forest soil quality.关键词
紫丁香蘑/红松/生长指标/土壤养分含量/土壤酶活性Key words
Lepista nuda/Pinus koraiensis/growth indicators/nutrient content/soil enzyme activity分类
生物科学引用本文复制引用
潘艳艳,李晓光,刘立君,李鸿,钟鑫,张义飞..红松生长和根际土壤酶活性对紫丁香蘑菌剂接种的响应[J].植物研究,2025,45(3):460-470,11.基金项目
吉林省发展和改革委员会项目(2023C038-4). （2023C038-4）
