土壤2023，Vol.55Issue(6)：1237-1243,7.DOI:10.13758/j.cnki.tr.2023.06.010
光照驱动花生间作系统根际细菌群落结构演变和产量提升机制的研究
Light-driven Succession of Rhizosphere Bacterial Community Structure and Yield Enhancement Mechanism in Peanut Intercropping System
摘要
Abstract
To investigate the causal relationship of light condition on the yield of short crops and the rhizosphere microbial community in the intercropping system,in this study,based on the long-term experiment platform of maize/peanut intercropping in the Jiangsu Academy of Agricultural Sciences,the low light and high light conditions were designed,isotope labeling and high-throughput sequencing technology were used to study the effects of photosynthesized carbon excrete in the rhizosphere of short peanut on the rhizosphere bacterial community structures and crop yields under different light conditions.The results showed that:1)Increasing the light interception of peanut canopy increased the allocation of photosynthetic carbon in peanut rhizosphere;2)The difference in light condition caused changes in the bacterial community structure and key bacterial groups in peanut rhizosphere;3)High light condition changed the intercropping peanut rhizosphere functional bacterial community to increase peanut production.The research results provide new perspective for optimizing intercropping management measures and increasing the yield of tall and short crop intercropping systems.关键词
花生产量/光截获/光合碳/细菌群落/关键菌群Key words
Peanut yield/Light interception/Photosynthesized carbon/Bacteria community/Key bacterial group分类
农业科学引用本文复制引用
卢居勐,陈晏,沈一,何港辉,李世文,孙波..光照驱动花生间作系统根际细菌群落结构演变和产量提升机制的研究[J].土壤,2023,55(6):1237-1243,7.基金项目
中国科学院南京土壤研究所十四五自主部署项目(ISSASIP2211),国家重点研发计划项目(2022YFD1900600)和国家自然科学基金面上项目(41977098)资助. （ISSASIP2211）
