Plants under the genus Orostachys have been known as medicinal plants. This study deems to determine the growth and leaf color of Orostachys japonica and O. boehmeri when subjected to various LED light sources. A total of seven LED light treatments were used, i.e. red (630 nm), green (520 nm), blue (450 nm), purple (650 and 450 nm), 3000 K white (455, 600 nm), 4100 K white (455, 590 nm), and 6500 K white (450, 545 nm) LEDs. Results showed that O. japonica plants showed favorable growth under 4100 K white LED, while O. boehmeri plants had a positive growth response under white light LEDs (3000, 4100, and 6500 K). In leaf color analysis, the use of green LED showed the greatest change in CIELAB L * and b * values which were relatively higher compared to other treatments indicating that leaves turned yellowish. Further statistical analysis using Pearson’s correlation also suggested that there is a small negative association between dry weight and b * values of O. japonica, and a negative moderate association between plant weights (fresh and dry weight) and leaf color (L * and b * ) and positive association between said plant weights and a * color values of O. boehmeri. Therefore, it is recommended to cultivate O. japonica under 4100 K white LED and O. boehmeri under 3000, 4100, 6500 K white LEDs.

Abstract
서 론
재료 및 방법
    1. 식물재료
    2. 재배조건
    3. LED 처리
    4. 조사항목
    5. 통계처리
결과 및 고찰
    1. LED 광질이 생장에 미치는 영향
    2. LED 광질이 엽색에 미치는 영향
    3. 생장과 엽색 간 상관관계 분석
적 요
사 사
Literature Cited

• 이재환(삼육대학교 대학원 환경원예학과 대학원생, 삼육대학교 자연과학연구소 연구원) | Jae Hwan Lee (Graduate Student, Department of Environmental Horticulture, Graduate School of Sahmyook University,Researcher, Natural Science Research Institute, Sahmyook University, Seoul 01795, Korea)
• 소순일(삼육대학교 자연과학연구소 연구원) | Soon Yil Soh (Researcher, Natural Science Research Institute, Sahmyook University, Seoul 01795, Korea)
• 김현진(삼육대학교 대학원 환경원예학과 대학원생) | Hyeon Jin Kim (Graduate Student, Department of Environmental Horticulture, Graduate School of Sahmyook University, Seoul 01795, Korea)
• 남상용(삼육대학교 대학원 환경원예학과 교수, 삼육대학교 자연과학연구소 연구소장) | Sang Yong Nam (Professor, Department of Environmental Horticulture, Graduate School of Sahmyook University, Director, Natural Science Research Institute, Sahmyook University, Seoul 01795, Korea) Corresponding author