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Potential sources of pythium inoculum into greenhouse soils with no previous history of cultivation

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Al-Sa'di, A.M., Drenth, A., Deadman, M.L., Al-Said, F.A., Khan, I. and Aitken, E. A. B. (2008) Potential sources of pythium inoculum into greenhouse soils with no previous history of cultivation. Journal of Phytopathology, 156 (7-8). pp. 502-505. ISSN 0931-1785

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Article Link: https://doi.org/10.1111/j.1439-0434.2008.01396.x

Abstract

A study was undertaken to investigate the potential sources of Pythium inoculum in greenhouse soils. About 7% of fallow soils were found to harbour Pythium before being introduced into greenhouses. When replacing the top layer (30–60 cm) of cultivated soil in greenhouses with fallow soil, Pythium inoculum was still recovered from the bottom layer of soil left in the greenhouse. Other potential sources of Pythium were found to be potting mixtures and contaminated soil adhering to cultivation equipment, growers’ shoes and reused irrigation pipes. Pythium isolates from different sources were from two species: Pythium aphanidermatum (88%) and P. spinosum (12%). This appears to be the first report of transmission of Pythium via contaminated soil adhering to reused irrigation pipes. It also represents the first report in Oman of transmission of Pythium into greenhouses via potting mixtures and fallow soils.

Item Type:Article
Subjects:Plant pests and diseases > Individual or types of plants or trees
Plant pests and diseases > Plant pathology
Live Archive:20 Feb 2024 04:18
Last Modified:20 Feb 2024 04:18

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