The Effect of Brevibacillus laterosporus AMCC101583 on Strawberry Growth and Field Control of Root-knot Nematode

HUANG Jian; LI Xiaoyang; CUI Jing; LV Jing; LIN Haohan; GONG Xiaomin

doi:10.19590/j.cnki.1008-1038.2025.06.010

Abstract：To investigate the effect of Brevibacillus laterosporuss AMCC101583 on strawberrys,it was prepared into a microbial inoculant,and the incidence of strawberry root knot nematode disease,fruit quality,yield,and soil related enzyme activity were measured.The pot experiment showed that the strawberry seedlings treated with B.laterosporuss AMCC101583 had a 49.63％lower incidence of root-knot nematode disease and the root biomass increased by 2.58 times.Between 2022-2024 the field experiment showed that after two years of continuous application of B.laterosporuss AMCC101583 microbial inoculant,compared with the control(CK),the solid content increased by 12.16％,the total soluble sugar increased by 7.22％,the organic acid content decreased by 3.1％,the sugar-acid ratio increased by 1.12,Vitamin C content increased by 11.11％,total polyphenols content increased by 6.25％,longitudinal diameter increased by 9.0％,transverse diameter increased by 5.61％,the yield increased by 7.42％,the urease activity in the applied soil increased by 27.62％,the activity of catalase increased by 15.11％,the sucrase activity increased by 25.17％,the acid phosphatase activity increased by 24.27％,and the disease index of root-knot nematodes was 2.7,with a control effect of 44.9％.The results showed that the microbial agent containing B.laterosporus AMCC101583 could effectively prevent the occurrence of root-knot nematode disease in strawberrys,improve the quality and yield of strawberrys,and effectively improve the soil.