Screening of Disease Resistance of Chinese Cabbage Cultivars and Lines to Bacterial Soft Rot

Chung, Eun Kyoung; Zhang, Xuan Zhe; Choi, Bo Ra; Lee, Eun Ju; Yeoung, Young Rog; Kim, Byung Sup

Research in Plant Disease 2003;9(1):39-41.
Published online March 30, 2003.

배추 무름병에 대한 저항성 품종 검정

정은경, 장현철, 최보라, 이은주, 용영록, 김병섭

Screening of Disease Resistance of Chinese Cabbage Cultivars and Lines to Bacterial Soft Rot

Eun Kyoung Chung, Xuan Zhe Zhang, Bo Ra Choi, Eun Ju Lee, Young Rog Yeoung, Byung Sup Kim

Abstract

Bacterial soft rot by Erwinia carotovora subsp. carotovora is one of the diseases causing the biggest damages in Chinese cabbage cultivation. This study was conducted to evaluate disease resistance of Chinese cabbage cultivars and breeding lines to E. carotovora subsp. carotovora by new inoculation method, mineral oil inoculation method, inoculating 10 ml of the mixture (4:1, v/v) of bacterial suspension and mineral oil on the central bases of Chinease cabbage seedling. Total 43 Chinese cabbage cultivars and lines obtained from 3 domestic seed companies and universities were screened for disease resistance using the above mentioned inoculation method. This screening test showed that Chinese cabbage C3-26, C3-28, C3-29 and C29-51-51-53 lines were resistant, Gangta, Gumchonyealgali, Mini, DB50, Jibu, Pyungchng, Sanchon and Yellow King No. 2 cultivars were susceptible, and the others were moderate resistant.

Key Words: Chinese cabbage, Erwinia carotovora subsp. carotovora, mineral oil inoculation method, disease resistance