Efficacy of different steam distribution systems against five soilborne pathogens under controlled laboratory conditions |
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Authors: | Pingxiang Lu Davide Ricauda Aimonino Giovanna Gilardi Maria Lodovica Gullino Angelo Garibaldi |
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Institution: | (1) Agroinnova - Centre of Competence for the Innovation in the Agro-Environmental Sector, University of Torino, 10095 Grugliasco (To), Italy;(2) DEIAFA, Department of Agricultural, Forestry and Environmental Economics and Engineering, University of Torino, 10095 Grugliasco (To), Italy; |
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Abstract: | The efficacy of three steam application techniques (steam injection, iron pan and sheet steaming) was evaluated against five
soilborne pathogens under controlled laboratory conditions. Injection and pan steam systems proved to be efficient and feasible
alternatives to traditional sheet steaming for suppressing Fusarium oxysporum f. sp. basilici at 60% moisture field capacity in sandy-loam soil. Injecting steam was the best technique to suppress F. oxysporum f. sp. basilici, F. oxysporum f. sp. raphani, F. oxysporum f. sp. conglutinans, Rhizoctonia solani and Phytophthora capsici. The mycelia of R. solani and P. capsici were very sensitive to heat and were effectively killed by injection of steam and by the pan steam system at 80% and 40%
moisture field capacity. |
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