미역고사리, 가는쇠고사리, 더부살이고사리 등 자생 고사리류 3종을 실내공간으로 도입이 가능한지 살펴보고자 현재 실내조경공간에서 가장 많이 사용되고 있는 형광등 하에서 설정한 100lux에서 2,000lux까지의 광도범위에서 실험한 생육 및 식물체내 활성의 변화 및 도입방안은 다음과 같다. 첫째, 미역고사리(Polypodium vulgare L)의 경우, 식물이 고사하거나 잎이 지는 현상을 보인 형광등 100lux를 제외하고 형광등 500lux부터 형광등 2,000lux까지 원활한 생육 및 생장을 보였다. 엽수나 수형, 체내 광합성률, 기공사진 등을 토대로 살펴볼 때, 형광등 1,000lux에서 가장 양호한 생장을 하여 최적광도인 것으로 조사되었다. 둘째, 가는쇠고사리(Rumohra aristata (RORST) CHING)의 경우, 식물전체가 고사하는 현상은 보이지 않아 형광등 100lux에서도 생육 가능하였으며 대체적으로 광도가 높을수록 원활한 생장을 보였으나 형광등 2,000lux의 경우 엽색이 황변하거나 하엽이 져 전체적인 식물의 신선도 및 수형이 흐트러지는 현상을 보였다. 적정광도는 형광등 1,000lux인 것으로 나타났다. 또한 통계적 유의성은 없었으나 광도가 낮을수록 엽록소함량이 많았으며 엽색이 진녹색으로 더 강조되었다. 셋째, 더부살이고사리(Polystichum lepidocaulon (HOOKER) J. SMITH)의 경우, 식물전체가 고사하는 현상은 보이지 않아 형광등 100lux에서도 생육이 가능하였으며 형광등 500lux이상에서부터 원활한 생장을 하였다. 그러나 광도가 가장 높은 형광등 2,000lux의 경우 하엽이 지거나 수형이 흐트러지는 현상을 보여 형광등 1,000lux, 형광등 500lux, 형광등 2,000lux 순으로 생육 및 생장상태가 좋았다. 형광등 1,000lux를 조명해 주는 것이 가장 효과적인 것으로 파악되었다. 내조경식물로 고사리류에 대한 선호도가 점차 높아지고 있는 시점에서 형광등을 주광원으로 잎이나 수형이 주관상 대상이 되고 있는 미역고사리(Polypodium vulgare L), 더부살이고사리(Polystichum lepidocaulon), 가는쇠고사리(Arachnoides aristata) 등을 공시식물로 광도실험을 한 결과, 실내공간으로 도입할 경우, 식물의 잎, 수형, 신선도 및 관리비용을 절감하는 차원에서 고려해 볼 때, 적정광도는 1,000lux를 조명해 주는 것이 가장 효과적이다.
This study was performed to research the adaptability of the light environment for the native evergreen ‘Filicales plant’ growing naturally in Jeju Island and the southern coast of Korea, and to provide the introduction plan into the interior space. The experimental plants were Polypodium vulgare L, Polystichum lepidocaulon(HOOKER) J. SMITH), and Rumohra aristata (RORST) CHING, and the plants were bought from the farmhouses in Jeju Island, and in the southern coast, purified at of Jinju National University for 30 days, and then the experiment was done in the greenhouse of Horticultural Department at General Farm of the University from February 15, 2009 to October 15, 2009. The main lighting type was fluorescent light, and the irradiation was performed continuously for 12 hours per day under 100lux, 500lux, 1,000lux, 2,000lux. As the featural measuring elements of plants, the plant height, number of leaves, leaf length, leaf width, number of new leaves, and the amount of chlorophyll were measured. A data analysis was performed by Duncan's multiple range test with SAS programs. The result of the experiment is the following; 1. In the case of Polypodium vulgare L, it was grown and developed smoothly from 500lux to 2,000lux of fluorescent light, but under 100lux, it was withered away, or the leaves were fallen. Considering number of leaves, plant figure, interior photosynthesis rate, and photo of stoma, the growth was the best under 1,000lux. 2. In the case of Rumohra aristata (RORST) CHING, the withering phenomenon was not appeared, and the growth was possible under 100lux. Generally, the smooth growth was under the higher luminosity. In case of 2,000lux, the color of leaves was changed to the yellow, or the leaves were fallen, therefore, the freshness of the plants and plant figure were decreased. The proper luminosity was 1,000lux, and the statistical significance was not existed, and also a lot of chlorophy was under the lower luminosity, and the color of leaves was highlighted to the dark green. 3. In the case of Polystichum lepidocaulon(HOOKER) J. SMITH, the withering phenomenon was not appeared, and the growth was possible under 100lux. The growth was performed smoothly from 500lux, but, in the case of 2,000lux of maximum luminosity, the leaves was fallen, or the plant figure was dispersed. The order of good growth and development was 1,000lux, 500lux, and 2,000lux.