北京林业大学学报2025，Vol.47Issue(10)：74-83,10.DOI:10.12171/j.1000-1522.20250195
卷边桩菇与生物炭协同作用对山新杨幼苗生长及生理指标的影响
Synergistic effects of Paxillus involutus and biochar on growth and physiological indices of Populus davidiana×P.alba seedlings
摘要
Abstract
[Objective]This paper aims to verify the synergistic effects of combined application of Paxillus involutus and biochar on Populus davidiana×P.alba seedlings by exploring their growth-promoting functions,so as to provide data support for subsequent research,and offer a theoretical basis for high-quality seedling cultivation and ecological environment improvement in northeastern China.[Method]Using Populus davidiana×P.alba seedlings as the research objects,four treatments were established:blank control,sole application of Paxillus involutus,sole application of biochar,and combined application of Paxillus involutus and biochar.Plant physiological and biochemical experimental methods were employed to measure growth and physiological indices,including seedling height,ground diameter,leaf area,biomass,photosynthetic pigments,cellulose,soluble protein,and soluble sugar content,as well as root growth under each treatment.[Result]Growth indices:seedling height,ground diameter,and leaf area significantly increased.Compared with blank control,the combined application treatment improved these indices by 23.2%,16.7%,and 17.06%,respectively.The sole application of Paxillus involutus increased them by 17.5%,29.5%,and 16.23%,respectively.Physiological indics:chlorophyll a,cellulose,soluble sugar,and soluble protein content in leaves significantly rose.The combined application treatment enhanced these above by 10.03%,6.23%,19.63%,and 85.51%,respectively,while chlorophyll b decreased by 1.77%.The sole Paxillus involutus treatment increased them by 6.72%,5.84%,9.37%,and 45.6%,respectively,with chlorophyll b declining by 6.32%.Additionally,the combined application markedly improved root growth in Populus davidiana×P.alba.The roots of Populus davidiana×P.alba seedlings treated with both biochar and Paxillus involutus showed a 145.51%increase in root length and an 86.82%increase in root surface area compared with control.[Conclusion]The combined application of Paxillus involutus and biochar can significantly promote the growth and physiological activity of Populus davidiana×P.alba seedlings,demonstrating a notable synergistic effect.The findings of this study provide both theoretical and practical foundations for improving seedling quality,enhancing afforestation survival rates,and promoting the sustainable development of ecological forestry.关键词
山新杨/外生菌根菌/生物炭/协同增效Key words
Populus davidiana×P.alba/ectomycorrhizal fungi/biochar/synergistic effect分类
农业科技引用本文复制引用
何映乾,李治鑫,尹大川..卷边桩菇与生物炭协同作用对山新杨幼苗生长及生理指标的影响[J].北京林业大学学报,2025,47(10):74-83,10.基金项目
国家自然科学基金项目(31800542),辽宁省自然科学基金项目(Z20250060). （31800542）
