Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Distribution Characteristics of Weeds and Vegetation Types in Dioscorea oppostifolia Thunb. Field

마밭에 출현하는 잡초와 식생유형의 특성

  • Kim, Duk-Hwan (College of Agricultural Kyungpook National University) ;
  • Park, Jae-Man (College of Agricultural Kyungpook National University) ;
  • Kang, Sang-Mo (College of Agricultural Kyungpook National University) ;
  • Lee, Seok-Min (College of Agricultural Kyungpook National University) ;
  • Lee, In-Yong (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Lee, In-Jung (College of Agricultural Kyungpook National University)
  • 김덕환 (경북대학교 농업생명과학대학) ;
  • 박재만 (경북대학교 농업생명과학대학) ;
  • 강상모 (경북대학교 농업생명과학대학) ;
  • 이석민 (경북대학교 농업생명과학대학) ;
  • 이인용 (국립농업과학원 작물보호과) ;
  • 이인중 (경북대학교 농업생명과학대학)
  • Received : 2014.10.16
  • Accepted : 2014.12.05
  • Published : 2014.12.31
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Abstract

A survey was conducted to identify the occurrence of problematic weed species on the Dioscorea oppostifolia fields in South Korea. Total 43 sites of the 8 different regions in S. Korea were investigated from May to October, 2014. In yam fields, the identified weeds were distributed in 11 families and 44 species. The exotic plants were identified as 3 families, 10 genera, 10 species. The vegetation of Dioscorea oppostifolia fields was classified into communities of 7 groups by methods of the Zurich-Montpellier school of phytosociology (Xanthium canadense Community, Bidens frondosa Community, Echinochloa oryzoides Community, Eclipta prostrata Community, Portulaca oleracea Community, Centipeda minima Community, Rorippa islandica Community). The weeds occurred in Dioscorea oppostifolia fields were divided into three groups in principal component plot analysis (PCA). Without weed control, yields loss in yam production was reached up to 82% as compared to weed controlled fields.

마밭에 출현하는 초종과 식생군락을 분석하여 마밭 잡초방제 기초자료로 활용하기 위하여 2014년 5월부터 10월까지 총 7회에 걸쳐 조사를 실시하였다. 마밭에는 총 11과 44종이 출현하였으며, 조사지역 내 출현한 귀화식물은 3과, 10속 10종으로 분류되었는데 주기적인 잡초방제로 인하여 잡초의 생물다양성이 높지는 않았다. Z-M학파의 식물사회학적 식생분류 결과, 큰도꼬마리, 논피, 미국가막사리, 한련초, 속속이풀, 중대가리풀, 쇠비름이 군락으로 분류되었으며, PCA plot 분석결과도 식생분류 결과와 동일하게 유형화되었다. 수량조사 결과, 잡초 방제구 대비 무처리에서 82%의 수량감소가 발생하였다.

Keywords

References

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