Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
권호 표지

Effects of Indoor Light Intensity on the Growth Characteristics of $Distylium$ $racemosum$, $Osmanthus$ $heterophyllus$ and $Damnacanthus$ $indicus$

실내 광조건이 조록나무, 구골나무 및 호자나무의 생육에 미치는 영향

  • 송은영 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 김성철 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 전승종 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 임찬규 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 김미선 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 김천환 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 노나영 (농촌진흥청 국립농업과학원 농업유전자원센터)
  • Received : 2011.06.28
  • Accepted : 2012.02.29
  • Published : 2012.03.31
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Abstract

This study was conducted to develope new indoor plants and to investigate the effects of light intensity on the growth of $Distylium$ $racemosum$, $Osmanthus$ $heterophyllus$ and $Damnacanthus$ $indicus$ under 100 lux, 1,000 lux and 2,500 lux fluorescent lighting for six months in the environment-controlled growth chambers. 1. $Distylium$ $racemosum$ : Most of $Distylium$ $racemosum$ under 100 lux light intensity were blighted in two months, whereas it was 100% of survival under 1,000 lux and 2,500 lux after six months. Plant height, number of leaf, leaf width and leaf length became higher as light intensity increased. The plants maintained under 2,500 lux showed the greatest plant height and leaf number. 2. $Osmanthus$ $heterophyllus$ : $Osmanthus$ $heterophyllus$ under 100 lux light intensity were blighted in two months, whereas it was 100% of survival under 1,000 lux and 2,500 lux after six months. However, under 1,000 lux, it paused plant height and was not increased in leaf number any more. A plant growth status showed the highest value under 2,500 lux in all conditions. 3. $Damnacanthus$ $indicus$ : $Damnacanthus$ $indicus$ was defoliated and blighted under 100 lux light intensity in two months, whereas it was grown properly with 1,000 lux or above. However, the growth under 2,500 lux of $Damnacanthus$ $indicus$ was superior to other treatments. But, $Damnacanthus$ $indicus$ under 1,000 lux after 6 months was more favorable chlorophyll contents, leaf length and leaf width than 2,500 lux. As increasing slightly of chlorophyll contents and leaf growth under 1,000 lux, $Damnacanthus$ $indicus$ could be utilized highly to the indoor ornamental plant.

조록나무, 구골나무, 호자나무의 실내 광도차에 따른 생육특성의 변화를 알아보고자 광도처리조합을 3처리구를 만들어 환경 조절 생육상에서 조사하였다. 사용된 광원은 형광등이고, 광 처리를 각각 100lux, 1,000lux, 2,500lux로 달리하여 6개월간 생육특성 변화를 조사하였다. 1. 조록나무는 저광도 100lux에서 처리 2개월 후 생존율이 약 30%로 식물체 대부분이 고사하였고, 1,000lux 이상부터는 양호한 생육 및 생장을 보였는데 처리 6개월까지도 생존율이 100%로 높게 유지되었다. 초장, 엽수, 분지수, 엽장, 엽폭은 광도가 높아짐에 따라 증가하였는데 고광도인 2,500lux에서 가장 우세한 생육 및 생장을 보였다. 2. 구골나무는 저광도인 100lux에서는 처리 2개월 이후 생존이 불가능하였고, 1,000lux와 2,500lux에서는 처리 6개월까지도 생존율이 100%로 높게 생존하였다. 하지만 1,000lux에서는 초장의 신장이 거의 정지되었고 엽수의 증가도 거의 중단되는 경향을 보였으며, 고광도인 2,500lux에서는 초장의 신장 및 엽수의 증가가 월등히 많아 가장 원활한 생육 및 생장을 보였다. 3. 호자나무는 저광도인 100lux에서는 낙엽현상이 심해 식물 전체가 고사하는 현상을 보였으나 1,000lux이상부터는 원활한 생육 및 생장을 보였다. 1,000lux에서 엽록소 함량이 약간 증가되는 경향을 보였고, 엽장과 엽폭이 약간 넓어지는 경향은 보였다. 호자나무는 1,000lux의 낮은 광도에서도 생육이 양호하고 관상가치가 유지되어 실내식물로서 활용성이 높을 것으로 판단된다.

Keywords

References

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