油茶苗根系土壤中芽孢杆菌的筛选及促生效应研究  

Screening and promotion of Bacillus in soil of Camellia seedlings root system

作　　者：熊天真 张继婷 张灿 岳慧蝶 柏丁源 刘俊玲 张佳广 李金颖 许威 XIONG Tianzhen;ZHANG Jiting;ZHANG Can;YUE Huidie;BAI Dingyuan;LIU Junling;ZHANG Jiaguang;LI Jinying;XU Wei(College of Life Sciences,Xinyang Normal University,Xinyang 464000,China;Tea Plant Biology Key Laboratory of Henan Province,Xinyang Normal University,Xinyang 464000,China)

机构地区：[1]信阳师范大学生命科学学院,河南信阳464000 [2]信阳师范大学河南省茶树生物学重点实验室,河南信阳464000

出　　处：《信阳师范大学学报(自然科学版)》2025年第1期34-40,共7页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金联合基金项目(U2004160);河南省科技计划项目(222103810071);河南省高等学校重点科研项目(24B180017)。

摘　　要：针对油茶苗生长周期长的问题,研究了促生微生物对油茶苗的促生作用。以油茶树根系土壤为样本进行芽孢杆菌的筛选,筛选出17株芽孢杆菌。首先,研究了单一芽孢杆菌对油茶苗的促生作用;然后,研究了混合菌株对油茶苗的促生作用;最后,对油茶苗根际土壤中有机质、氮、磷、钾含量进行测定。结果表明:菌株XY12(解淀粉芽孢杆菌)处理的油茶苗苗高、地径、冠幅和最大叶面积分别比对照组增加16.16%、17.43%、18.03%和17.62%;混合菌株XY6(梭状芽孢杆菌)、XY12(解淀粉芽孢杆菌)和XY15(短小芽孢杆菌)处理的油茶苗高、地径、冠幅和最大叶面积分别比对照组增加26.25%、25.65%、27.57%和26.91%;混合XY6、XY12和XY15菌株土壤中有机质、碱解氮、速效磷、速效钾含量分别增加16.86%、12.38%、19.75%和18.14%。Aiming at the problem of long growth cycle of camellia seedlings,growth-promoting microorganisms were used to study the growth-promoting effect of camellia seedlings.The soil samples of camellia oleifera root system were used for the screening of Bacillus,and 17 strains of Bacillus were selected.The results showed that the seedling height,ground diameter,crown width and maximum leaf area of camellia seedlings from strain XY12 increased by 16.16%,17.43%,18.03%and 17.62%,respectively,compared with the control.The results showed that the height,ground diameter,crown width and maximum leaf area of camellia seedlings treated with the mixed strains XY6(Bacillus circulus),XY12 and XY15(Bacillus pumilus)increased by 26.25%,25.65%,27.57%and 26.91%,respectively,compared with the control.Finally,the contents of organic matter,nitrogen,phosphorus and potassium in rhizosphere soil were determined.The contents of organic matter,alkali-hydrolyzed nitrogen,available phosphorus and available potassium in soil of mixed XY6,XY12 and XY15 strains were increased by 16.86%,12.38%,19.75%and 18.14%,respectively.

关 键 词：油茶苗 根际促生菌 芽孢杆菌 微生物菌肥 

分 类 号：S432.1[农业科学—植物病理学]