고랭지 토양의 배추뿌리혹병 오염 = Contamination of Plasmodiophora Brassicae on Soil in Highland Area of Chinese Cabbage Cultivation

다국어 초록 (Multilingual Abstract)

This research was performed to establish basic technology of chemical control and the degree of contamination of P. brassicae by researching the soil contamination of the regions well known as the major producer of summer Chinese cabbage. As places well known for summer Chinese cabbage, 12 out of 15 in Pyeongchang-gun. Seven out of 11 regions in Samcheok-si and Taebaek-si resulted positive for P. brassicae contamination. It was found out that the soil contamination rate of P. brassicae was 80 % in Pyeongchang-gun, 63.6 % in Samcheok-si and Taebaek-si. The 10 places where the Chinese cabbage clubroot was verifiable by naked eye were 100 % confirmed by the PCR test of the P. brassicae soil contamination. Thus, the P. brassicae soil contamination could be diagnosed by the simple PCR test and it could be utilized as an index for deciding chemical control.

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