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International Journal of Agronomy
Volume 2014 (2014), Article ID 307367, 5 pages
http://dx.doi.org/10.1155/2014/307367
Research Article

Development of an Effective Nonchemical Method against Plasmodiophora brassicae on Chinese Cabbage

1College of Agricultural and Life Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
2Chun Hui (Shanghai) Agricultural Science and Technology Development Co., Ltd., Shanghai 201203, China
3Anhui Yong Da Agricultural Science and Technology Development Co., Ltd., Bengbu, Anhui 233000, China

Received 3 October 2013; Revised 12 December 2013; Accepted 13 December 2013; Published 29 January 2014

Academic Editor: Robert J. Kremer

Copyright © 2014 Yu Gao and Guanghui Xu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Clubroot disease, caused by Plasmodiophora brassicae, is a serious soil-borne disease of crucifer worldwide, and it can significantly reduce yield and quality. Although some agrochemicals have been used to manage clubroot and can provide effective control, increasing use of chemical inputs causes several negative effects. In this study, using Chinese cabbage (Brassica rapa L. subsp. chinensis) as the test crop, we developed an effective nonchemical method that would protect the roots against P. brassicae infection by using a combination heat treatment and a cocktail of biocontrol agents. The data showed that this method could cause 91.7% inhibition of P. brassicae infection. The average height of plants (13.5 cm) using this method was about twice higher than that in control group (6.7 cm), and the average plant weight (3.19 g) was about three times increased compared to that in control set (1.23 g).