Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Properties of Suppressive and Conducive Soils to Ginseng Root Rot

인삼 근부병 억제토양 및 유발토양의 특성

  • Chung Young Ryun (Agronomy Research Center, Korea Ginseng & Tobacco Research Institute) ;
  • Kim Hong Jin (Jeung Pyung Experiment Station, Korea Ginseng & Tobacco Research Institute) ;
  • Ohh Seung Hwan (Agronomy Research Center, Korea Ginseng & Tobacco Research Institute) ;
  • Lee Il Ho (Agronomy Research Center, Korea Ginseng & Tobacco Research Institute)
  • 정영윤 (한국인삼연초연구소 경작시험장) ;
  • 김홍진 (한국인삼연초연구소 회평지장) ;
  • 오승환 (한국인삼연초연구소 경작시험장) ;
  • 이일호 (한국인삼연초연구소 경작시험장)
  • Published : 1983.09.01
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Abstract

Biological, physical and chemical characteristics of suppressive and conducive soils to ginseng root rot were investigated. Population of antagonistic microorganisms to Fusarium solani was much higher in suppressive soils than in conducive soils, whereas the numbers of Fusarium species were smaller in suppressive soils. Mycelial growth and chlamydospore formation of Fusarium solani were inhibited in suppressive soils. In the water extract of suppressive soils, lysis of germination tube and macroconidia of F. solani was occurred by antagonistic microorganisms at 4 hours after treatment. There were no significant differences in physical and chemical characteristics between supressive soils and conducive soils to ginseng root rot, however, clay content of suppressive soils was a little higher than that of conductive soils.

인삼 근부병 억제토양 및 유발토양의 생물적, 이화학적 특성을 조사하였다. 병원균 Fusarium solani에 대한 길항균의 밀도가 근부병 유발토양에 비해 억제토양에서 훨씬 높았으며, 반대로 Fusarium spp.의 밀도는 더 낮았다. F solani의 후막포자 형성 및 균사생장도 근부병 억제토양에서 더 적었으며, 억제토양의 물추출액 속에서도 처리 4시간후 대형분생포자의 발아관이 길항미생물에 의해 분해되었다. 두 토양의 이화학적인 성질은 유의성있은 차가 없었으나 억제토양이 유발토양보다 점토함량이 조금 높은 경향이었다.

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