Integration of Pseudomonas aeruginosa with biofumigation to control phytophthora blight of pepper
2015
A:PS
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Title
Integration of Pseudomonas aeruginosa with biofumigation to control phytophthora blight of pepper
Publication Date
2015
Call Number
A:PS
Summary
To find effective ways to prevent phytophthora blight of pepper caused by Phytophthora capsici, the change of soil microbial population during the process of biofumigation was firstly studied. Biofumigation significantly reduced the population of soil P. capsici and fungi by 20% and 68% respectively, and increased the population of soil bacteria and actinobacteria by 40% and 49% respectively after 7 d. The population of P. capsici in biofumigation treatment gradually increased after the 7th day, indicating that the optimal duration for biofumigation is 7 d. An antagonistic Pseudomonas aeruginosa was screened by dish culture, which was not only resistant to volatile and toxic gas from rapeseed meal but also antagonistic to P. capsici. The rapeseed meal and P. aeruginosa strains were applied to soil simultaneously for biofumigation for 7 d. Compared with sole biofumigation treatment, the integration of biofumigation with P. aeruginosa strain significantly increased the population of Pseudomonas by 401% and decreased the population of P. capsici by 72% in soil, which contributed to decreasing disease incidence of phytophthora blight of pepper by 8% . Combining biofumigation with antagonistic microorganism is environmental-friendly to control phytophthora blight of pepper.
Journal Citation
31(2):290-297, JIANGSU JOURNAL OF AGRICULTURAL SCIENCES
Contact Information
harvest@worldveg.org
Record Appears in
Research > Published Articles