Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Characteristics of reproductive effect and phenology of Polygonatum stenophyllum grown in riverside in Paju-si

파주시 하천변에 서식하는 층층둥굴레의 계절학과 번식생태학적 특성

  • Kim, Eui-Joo (Department of Life Science, Kongju National University) ;
  • Hong, Yong-Sik (Korea Environmental Preservation Association) ;
  • Park, Jae-Hoon (Department of Life Science, Kongju National University) ;
  • Lee, Soo-In (Baekdudaegan National Arboretum) ;
  • Lee, Eung-Pill (Department of Life Science, Kongju National University) ;
  • Lee, Seung-Yeon (Department of Life Science, Kongju National University) ;
  • You, Young-Han (Department of Life Science, Kongju National University)
  • Received : 2020.04.13
  • Accepted : 2020.04.28
  • Published : 2020.05.31
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Abstract

Polygonatum stenophyllum Maxim. is a native perennial herb to Korea belonging to family Liliaceae. Although it was removed from the endangered species list, since it inhabits the riverside, it has been threatened with damage to its populations due to frequent disturbances. In order to reveal the basic ecological characteristics of P. stenophyllum, This study was identified the life cycle of the aboveground part and was measured the number of flowers and fruits, which are reproductive organs of P. stenophyllum in riverside in Paju - si during the two years. As a result, aboveground part of P. stenophyllum appeared and grew rapidly until the end of May to about 1m. In early May, two buds per one peduncle were formed up to six pairs per floor. The flowers bloomed in turn from the base of the stem and to the top floor and the blooming occurred when the number of leaves was at least three. Fruits were formed in mid-June and matured by the end of September. The numbers of flowers and fruits were revealed that flowers bloomed in turn from the bottom of the stem to the top floor, the most intensively bloomed in the center part of the stem, and did not bloom from the floor closest to the ground and above the highest 5th node. This basic ecological characteristics of the P. stenophllyum grown in riverside identified in this study will be useful as basic data for their conservation.

층층둥굴레는 백합과에 속하고 한국에 자생하는 다년생 초본이다. 이는 멸종위기생물종 목록에서 해제되었지만 하천변에 서식하기 때문에 빈번한 교란으로 개체군은 훼손 등 위협에 처해있다. 따라서 층층둥굴레의 기초 생태학적 특성을 밝히기 위해, 본 연구는 2년 동안 파주시의 하천변에서 자생하는 층층둥굴레의 지상부의 식물계절학 조사와 번식기관인 꽃과 열매의 수를 측정하였다. 그 결과, 층층둥굴레의 지상부는 4월 말에 출현하고 5월 말까지 약 1m로 빠르게 생장하였다. 5월 초, 1개의 꽃자루 당 2개의 꽃봉오리가 줄기 마디에 최대 6쌍까지 형성되었고, 5월 중순부터 개화하였다. 열매는 6월 중순부터 형성되어 9월 말까지 성숙하였다. 층층둥굴레의 꽃과 열매는 줄기의 기저부부터 정단부까지 차례로 달렸고, 꽃과 열매의 수는 줄기의 중앙 부분에서 가장 많이 형성하였고, 지면과 가장 가까운 마디부터 최대 5마디까지는 형성하지 않았다. 본 연구에서 밝힌 하천변에서 자생하는 층층둥굴레의 기초 생태학적 특성은 이들의 보전을 위한 기초 자료로 유용할 것이다.

Keywords

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