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Survey of Weed Flora on Paddy Fields in Chungbuk Province in Korea

충북지역 발생 논잡초 분포 조사

  • 김은정 (충청북도농업기술원 작물연구과) ;
  • 박재성 (충청북도농업기술원 작물연구과) ;
  • 이채영 (충청북도농업기술원 작물연구과) ;
  • 임상철 (충청북도농업기술원 작물연구과) ;
  • 박인서 (충북대학교 식물자원학과) ;
  • 조용구 (충북대학교 식물자원학과)
  • Received : 2014.04.24
  • Accepted : 2014.06.17
  • Published : 2014.06.30

Abstract

The survey of weed occurrence was conducted to identify dominant weed species in the paddy field. Total 346 sites of the 12 regions in Chungbuk Province in Korea were investigated in July, 2013. Weed flora was composed of 43 species belonged to 15 families. The compositions of major plant families, Cyperaces, Poaceae, Pontederiaceae and Asteraceae, were 21.5, 17.4, 15.5 and 12.7%, respectively. Based on life cycle, weed species was grouped into annuals of 71.3 and perennials of 28.1%. The most dominant weed species in paddy fields of Chungbuk Province were Monochoria vaginalis (14.5%), followed by Scirpus juncoides (10.5%), Echinochloa oryzoides (9.3%), Eleocharis kuroguwai (7.0%), Aeschynomene indica (6.2%) et al. The similarity of paddy weeds in 12 regions observed through TWINSPAN analysis was distinguished by Persicaria longiseta, Aneilema keisak, Persicaria thunbergii, Fimbristylis millacea, Blyxa japonica, Digitaria ciliaris, Potamogeton distinctus, Cyperus nipponicus. This information could be useful for estimation of future weed occurrence and establishment of weed control methods in chungbuk province in Korea.

Keywords

Chungbuk;Paddy field;Weeds;Weed occurrence

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