南京林业大学学报（自然科学版）2026，Vol.50Issue(2)：196-204,9.DOI:10.12302/j.issn.1000-2006.202409039
植物根际促生菌对桂花生长、生理适应性及土壤性状的影响
Effects of plant growth-promoting rhizosphere on growth,physiological adaptability and soil properties of Osmanthus fragrans
摘要
Abstract
[Objective]This study investigated the effects of inoculating Osmanthus fragrans with two plant growth-promoting rhizobacteria(PGPR),Yokenella regensburgei and Pseudomonas mosselii,to provide a reference for future PGPR application in O.fragrans cultivation.[Method]PGPR strains isolated from O.fragrans rhizosphere soil were selected for a pot experiment.One-year-old O.fragrans seedlings were inoculated with Y.regensburgei,P.mosselii,or left untreated(control group)to assess the impacts of PGPR on plant growth,physiological adaptation,and rhizosphere soil properties.[Result]Both PGPR strains promoted plant height and increased root fresh weight,stem fresh weight,root length,and stem length.Y.regensburgei demonstrated a more significant effect on the growth characteristics of O.fragrans.Both PGPR treatment could significantly enhance the CAT of O.fragrans.PGPR application increased soil organic matter content but did not significantly alter soil pH,electrical conductivity,available phosphorus,or available potassium content.[Conclusion]The PGPR strains Y.regensburgei and P.mosselii improved the rhizosphere soil environment and enhanced the growth and physiological processes of O.fragrans,with Y.regensburgei exhibiting superior overall efficacy.These screened strains offer potential for developing specialized microbial fertilizers for O.fragrans,thereby advancing novel fertilizer research and promoting the growth of this plant species.关键词
桂花/植物根际促生菌/促生能力/生长生理适应性/土壤性状Key words
Osmanthus fragrans/plant growth-promoting rhizobacteria/growth promoting ability/growth and physiological adaptability/soil properties分类
农业科技引用本文复制引用
陈丁亿,张小凤,黄九荣,王良桂,杨秀莲..植物根际促生菌对桂花生长、生理适应性及土壤性状的影响[J].南京林业大学学报（自然科学版）,2026,50(2):196-204,9.基金项目
中央财政林业科技推广示范项目(苏[2024]TG04) （苏[2024]TG04）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
