Foliage plants are considered as an integral part of adding aesthetic and functional purposes in public places. Nowadays, various foliage plants are used to decorate and enhance the aesthetics of several government and private establishments which offer and run services non-stop that involve medical/police emergencies, entertainment, and travel. Under these conditions, indoor foliage plants are subjected to continuous lighting conditions. Thus, this study aimed to determine the growth and physiological response of common foliage plants (Hoya carnosa f. variegata, Epipremnum aureum f. variegata, Rhapis excelsa, Hedera helix, Chamaedorea elegans, and Spathiphyllum wallisii) under continuous light conditions with varying light intensity levels (60, 120, and 180 μmol m-2 s-1). Plant responses were evaluated using growth parameters and the chlorophyll fluorescence analysis of the OJIP curve and its specific energy flux parameters. Results showed that foliage plants showed positive growth and increase in mass yield in higher light intensities and had a minor impact on color quality. Chlorophyll fluorescence analysis suggested that strong stress responses were evident in low light conditions, whereas in fluorescence parameters, continuous lighting conditions with high light intensities showed stress due to excess light to shade-tolerant plants.

Abstract
Introduction
Materials and Methods
    Plant materials
    Experimental design and treatment
    Plant growth parameters
    SPAD chlorophyll content measurement
    Chlorophyll fluorescence measurement
    Data analysis
Results and Discussion
    Plant growth and CIELAB values
    Chlorophyll content
    Chlorophyll fluorescence analysis
References

• Jae Hwan Lee(Department of Environmental Horticulture, Sahmyook University/Natural Science Research Institute, Sahmyook University)
• Raisa Aone M. Cabahug(Plant Genetics and Breeding Institute, Sahmyook University)
• Na Hyun You(Department of Environmental Horticulture, Sahmyook University)
• Sang Yong Nam(Department of Environmental Horticulture, Sahmyook University/Natural Science Research Institute, Sahmyook University) Corresponding author