Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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A Survey of Weeds Occurrence on Paddy Fields in Gyeongbuk Province in Korea

경북지역 논 잡초 발생분포 조사

  • Kim, Sang Kuk (Divion of Crop Breeding, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kim, Hak Yoon (Department of Global Environment, Keimyung University)
  • 김상국 (경상북도농업기술원 작물육종과) ;
  • 김학윤 (계명대학교 지구환경학과)
  • Received : 2014.02.20
  • Accepted : 2014.03.26
  • Published : 2014.03.31
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Abstract

The survey of weed occurrence was conducted to identify problem weed species in the paddy field. The 320 sites of the 13 regions in Gyeongbuk Province were investigated from June to July, 2013. In the whole region, 51 weed species were identified including 34 annuals and 17 perennials. The highest importance value of annual weed and perennial was dominant 88.4 and 48.7%, in Gumi region, respectively. The most dominant weed species in paddy fields of Gyeongbuk Province were Monochoria vaginalis var. plantaginea (10.80%), followed by Lemna paucicostata (10.74%), Bidens tripartite (8.77%), Echinochloa oryzoides (7.17%), and Scirpus juncoides (6.20%). The similarity of paddy weeds in 13 regions observed through TWINSPAN analysis was distinguished by Ludwigia prostrata, Scirpus juncoides, Lindernia dubia, Polygonum aviculare, and Alopecurus aequalis var. amurensis. The weed species, Ludwigia prostrata, was divided into the four regions, Gyeongju, Gumi(direct seeding cultivation), Youngcheon and Euiseong and ten regions, Gumi, Bonghwa, Sanju, Goryung, Youngdeog, Pohang, Sanju, Andong, Yecheon, and Cheongdo.

본 조사는 2013년에 경북지역 13개 시 군의 320지점에서 논 잡초 발생 현황을 파악하기 위하여 수행되었다. 경북지역의 논잡초 조사결과, 27개과(family) 51초종(species)이었고 과별로는 벼과(family) 9초종, 사초과(family) 5초종, 마디풀과(family) 4초종, 국화과(family) 4초종 순으로 나타났다. 발생 잡초종의 생활형태는 일년생잡초 34종, 다년생잡초 17종으로 대부분 일년생잡초였다. 경북지역의 우점잡초는 물달개비(10.80%) > 좀개구리밥(10.74%) > 가막사리(8.77%) > 강피(7.17%) > 올챙이고랭이(6.20%) > 올방개(6.13%) > 벗풀(5.85%) 순이었다. 물달개비, 좀개구리밥, 가막사리, 강피, 올챙이고랭이, 올방개, 벗풀의 우점도는 전체 잡초종의 50%이상 차지하였고 TWINSPAN 분석을 통한 지역별 잡초종의 유사성은 여뀌바늘, 올챙이고랭이, 미국외풀, 마디풀, 뚝새풀에 의해 구분되어 추후 경북지역 논 잡초의 발생 양상을 예측하며 잡초군락의 변화를 파악함으로써 체계적인 논 잡초 관리방안을 마련할 수 있을 것으로 판단되었다.

Keywords

References

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