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Assessment of the response of Plasmodiophora brassicae in contaminated horticultural land, using lime‐based fertilizer concentrations

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Faggian, R., Hanson, Mary, Kennedy, R., Petch, Geoffrey and Wakeham, A. (2017) Assessment of the response of Plasmodiophora brassicae in contaminated horticultural land, using lime‐based fertilizer concentrations. Food and Energy Security, 6 (4). e00122. ISSN 2048-3694

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Official URL: https://onlinelibrary.wiley.com/doi/full/10.1002/f...

Abstract

Infection of brassica crops with the clubroot pathogen, Plasmodiophora brassicae, can result in stunted plant growth and wilting, which can severely affect crop yield. Determining P. brassicae infection within a field prior to crop planting has long posed a problem for choosing appropriate control treatments. The options for control of this pathogen are limited and in the UK and are based on adjusting pH with soil amendments. In this study quantitative polymerase chain reaction (qPCR) was investigated for measurement of this pathogen in different control treatments. The qPCR was capable of reliably quantifying P. brassicae at levels greater than and including 103 resting spores/g soil. The assay was used to study the effect of lime‐based products (LimeX) on the incidence of the clubroot pathogen in field trials with broccoli crops grown on contaminated land. The results showed that variation occurred in clubroot resting spore levels in treated and untreated plots during the crop growing period. In year one there was a 96% decrease in spore load during the growth of the crop. Treatment with LimeX resulted in a greater marketable head weight of broccoli in 2 years of the field trials, and significantly reduced gall numbers on the roots in 1 year. The rate of lime (calcium carbonate) application was not found to have a significant effect in this study, however a greater reduction in clubroot was observed at higher LimeX concentrations.

Item Type:	Article
Additional Information:	The full-text of the online published article can be accessed via the official URL. © 2017 The Authors. Food and Energy Security published by John Wiley & Sons Ltd. and the Association of Applied Biologists. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Uncontrolled Discrete Keywords:	clubroot, control, lime, Plasmodiophora brassicae, qPCR, real-time
Divisions:	College of Health, Life and Environmental Sciences > School of Science and the Environment
Related URLs:	Publisher
Copyright Info:	Open access article
Depositing User:	Mary Hanson
Date Deposited:	05 Dec 2019 10:25
Last Modified:	17 Jun 2020 17:33
URI:	https://worc-9.eprints-hosting.org/id/eprint/8965

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