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2014 Vol.23, Issue 4 Preview Page

Original Articles

Effects of Temperature and Shading on Germination and Early Growth in Pimpinella brachycarpa

온도와 차광이 참나물 발아 및 초기 생장 특성에 미치는 영향

전권석, 송기선, 최규성, 김창환, 박용배, 김종진

Kwon Seok Jeon, Ki Seon Song, Kyu Seong Choi, Chang Hwan Kim, Yong Bae Park, and Jong Jin Kim

31 December 2014. pp. 342-348
PDF Citation
Abstract
This study was carried out to determine the effects of temperature and shading on germination and early growth of Pimpinella brachycarpa. Experiment was performed by temperature controls (5°C, 10°C, 15°C, 20°C, 25°C, and 30°C) and shading treatments (control, 35% shading, 50% shading, and 75% shading). Seed pre-treatment before the germination experiment was carried out by temperature (with low temperature and wetting treatments for 0day, 20days, and 40days). Seeds of P. brachycarpa were, 20days of seed pre-treatment, germinated well at 5°C and the more temperature went up, the more germination rate went down. As a result of surveying shading treatments, the height, leaf area, leaf length, leaf width etc were the highest (7.3cm, 12.8cm2, 5.4cm, and 2.3cm, respectively) under 50% shading. Specially, the root was grown well under 35% and 50% shading. Fresh weight of shoot(leaves+stem) was the highest under 50% and 75% shading and dry weight of shoot (leaves+stem) was the highest under 35% and 50% shading. As a result of surveying the whole experiment, it is concluded that the production of P. brachycarpa seedling is more effective under 50% shading.
Keywords
dry weight
fresh weight
germination rate
leaf growth
root growth
본 연구는 온도와 차광이 참나물 종자의 발아와 유묘의 생장에 미치는 영향을 조사하고자 실시하였다. 실험은 온도별(5°C, 10°C, 15°C, 20°C, 25°C, 30°C) 발아 시험과 차광별(무차광, 35% 차광, 50% 차광, 75% 차광) 생육 시험의 두 종류로 실시되었으며, 발아실험 전 종자는 0일, 20일, 40일로 각각 저온습윤 처리를 하였다. 발아율은 20일 저온습윤 처리의 5°C에서 48.3%로 가장 높았으며, 온도가 높아질수록 낮아지는 경향을 보였다. 차광에 따른 초장, 엽면적, 엽장, 엽폭 등은 모두 50% 차광에서 각각 7.3cm, 12.8cm2, 5.4cm, 2.3cm로 가장 컸다. 특히, 뿌리는 35%와 50% 차광에서 생장이 좋았다. 지상부의 생체중은 50% 차광과 75% 차광에서 가장 높았으며, 건물중은 35% 차광과 50% 차광에서 높았다. 본 실험결과를 종합적으로 살펴보면, 참나물 유묘는50% 차광을 유지하여 생육하는 것이 이식용 유묘 생산에 효과적일 것으로 판단된다.
키워드
건물중
발아율
뿌리생장
생체중
엽생장
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 23
  • No :4
  • Pages :342-348
  • DOI :https://doi.org/10.12791/KSBEC.2014.23.4.342
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