Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지

Distribution of Arbuscular Mycorrhizal Fungi(AMF) at Ginseng Cultivated Fields in Jeonnam Province

전남지역 인삼재배 토양의 Arbuscular 균근균 분포 특성

  • Sohn, Bo-Kyoon (Division of Environmental and Agricultural Science, Sunchon National University) ;
  • Jin, Seo-Young (Division of Environmental and Agricultural Science, Sunchon National University) ;
  • Lee, Do-Jin (Department of Agricultural Education, Sunchon National University)
  • 손보균 (순천대학교 생명과학부) ;
  • 진서영 (순천대학교 생명과학부) ;
  • 이도진 (순천대학교 농업교육과)
  • Received : 2008.05.03
  • Accepted : 2008.06.14
  • Published : 2008.06.30
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Abstract

This study was carried out to investigate the distribution characteristics, colonization patterns of arbuscular mycorrhizal fungi (AMF) at Ginseng- cultivated fields in Jeonnam province including Gokseong, Yeonggwang, Yeongam and Haenam area. Average density of AMF spores in all of analyzed areas was in the range of $3.4{\sim}5.9spores\;g^{-1}$ air-dried soil and spore density in the soil was increased gradually up to Ginseng cultivated fields grown for 3 years. However, AMF spore densities in the marginal field soil were $6.3{\sim}14.7spores\;g^{-1}$ air-dried soil and it was higher than those in Ginseng-cultivated field soils. A $45{\sim}106{\mu}m$ in diameter of AMF spores by size was dominant (74.3%) in Ginseng cultivated fields. AMF colonization association type in Ginseng roots was a Paris-type. Average rates of AMF infection ranged from 40% to 50%, while 64.4% of AMF infection occurred in Yeongam area. External hyphae length (EHL) in the rhizosphere soil of Ginseng cultivated field was in the range of $0.5{\sim}4.4m\;g^{-1}$ air-dried soil and the hyphae quantity was gradually increased proportional to increment of Ginseng cultivation years.

전남지역 인삼재배지의 토착 Arbuscular 균근균(AMF)의 분포와 감염특성을 파악하기 위해 곡성, 영광, 영암, 해남 지역을 대상으로 58개 지점의 토양과 인삼 시료를 채취하여 조사하고 AMF 밀도와 토양특성을 조사하였다. 조사지역의 전체 평균 포자밀도는 건토 1 g당 3.4~5.9개의 분포를 보였으며, 재배연수 3년근 재배지까지는 포자밀도가 다소 증가하는 경향을 보였고, 자연상태 토양 중의 AMF 포자밀도는 건토 1 g 당 6.3~14.7개로서 인삼재배지 보다 포자밀도가 높았다. 포자크기별 분포는 직경 $45{\sim}106{\mu}m$ 범위에 74.3% 정도가 포함되었으며, AMF의 감염 양상은 Paris-type이 주를 이루었다. 평균 감염율은 영암지역의 재배지에서 64.4%로 높게 나타났으나 그 밖의 지역은 40~50%범위를 보였다. 조사지역의 근권토양 중 AMF 외생균사의 길이는 건토 1 g당 0.5~4.4 m 범위로서 인삼의 재배연수가 증가함에 따라 외생균사(external hyphae)의 양이 많아지는 것으로 파악되었다.

Keywords

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