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- Title
Survival of Sclerotium cepivorum Sclerotia and Fusarium oxysporum Chlamydospores in Soil Amended with Cruciferous Residues.
- Authors
Smolińska, U.
- Abstract
The use of cruciferous plant residues to reduce the amount of sclerotia of Sclerotium cepivorum and chlamydospores of Fusarium oxysporum f. sp. lycopersici in soil was investigated. Air-dried and crushed mustard (Brassica juncea) added to the soil effectively reduced the viability of fungal propagules. Consequently, the reduction of white rot of onion, caused by S. cepivorum and wild of tomato caused by F. oxysporum was observed. The addition of rapeseed (Brassica. napus cv. Bolko and B. napus cv. Gorczanski) residues to soil also resulted in a significant decrease of number of S. cepivorum sclerotia but the effect on F. oxysporum chlamydospores was variable. Introduction of the plant material increased the total number of bacteria, spore-forming bacteria, fluorescent pseudomonads, actinomycetes, and fungi in soil. One year after the soil amendment, the amount of sporeforming bacteria in treatments with cruciferous residues was higher as compared to the control soil without plant residues. The possible contribution of the decomposition of plant residues and soil micro-organisms to the reduction of the pathogens population is discussed.
- Subjects
BIOLOGICAL control of soilborne plant pathogens; ORGANIC wastes as soil amendments; SCLEROTIUM cepivorum; FUSARIUM oxysporum
- Publication
Journal of Phytopathology, 2000, Vol 148, Issue 6, p343
- ISSN
0931-1785
- Publication type
Article
- DOI
10.1046/j.1439-0434.2000.00519.x