Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Screening of Disease Resistance of Chinese Cabbage Cultivars and Lines to Bacterial Soft Rot

배추 무름병에 대한 저항성 품종 검정

  • 정은경 (강릉대학교 식물응용과학과) ;
  • 장현철 (강릉대학교 식물응용과학과) ;
  • 최보라 (강릉대학교 식물응용과학과) ;
  • 이은주 (강릉대학교 식물응용과학과) ;
  • 용영록 (강릉대학교 식물응용과학과) ;
  • 김병섭 (강릉대학교 식물응용과학과)
  • Published : 2003.03.01
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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.

Erwinia carotovora subsp. carotovora에 의한 배추 무름병은 배추에서 가장 큰 문제가 되고 있는 병중 하나이다. 본 연구는 배추 품종별 무름병 저항성을 조기에 검정하고자 실시하였다. 선발된 균주를 이용하여 세균현탁액과 mineral oil을 4:1로 혼합하여 배추의 중앙 기부에 10m1 관주 접종하는 mineral oil 접종법으로 접종하였다. 국내의 3개 종묘회사와 대학으로부터 분양 받은 43개의 배추품종 및 계통의 저항성 정도를 조사하였다. 그 결과 C3-26, C3-28, C3-29, C29-51-51-52는 저항성, 강타배추, 금촌얼갈이, 미니배추, 금빛, DB50, 지부, 평층, 산촌배추는 감수성인 것으로 나타났으며, 나머지는 중간정도의 저항성을 나타냈다.

Keywords

References

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