The National Research and Innovation Agency (BRIN) conducted research on the effect of artificial light on plants condition in the Bogor Botanical Gardens. The research process was carried out at night for two hours in one period, on Wednesday (2/2).

BRIN’s Physics Researcher Isnaeni said that this research used two tools, namely Photosynthetically Active Radiation (PAR) and Lux ​​Meter. PAR is used to see the effect of exposure to artificial light on the condition of plants, especially in the photosynthetic process. While Lux Meter is used to measure the intensity of light from lamps installed in the area.

“The research process carried out tonight is to see the rate of water in plants and the effect of light exposure on the photosynthetic process in plants,” he said further.

The activity was performed in two locations, namely the Mexico Park and the Astrid Park. In the Mexico Park, research on light exposure was carried out on cacti and other succulents, while in the Astrid Park, research was carried out on large trees.

Frisca Damayanti, a researcher at the Research Center for Plant Conservation and Botanical Gardens, said that the presence of light is thought to cause plants to carry out the photosynthesis process. In fact, according to him, generally at night the plants do the recovery process or rest. “Therefore, measurement of the rate of water use in plants was carried out using a Psychrometer and Sap flowmeter. This measurement can be an indication of the presence of photosynthesis process,” he explained.

“The intensity of light at a wavelength of 400-700 nanometers affects the photosynthesis process, and this artificial light contains light in that range, so PAR testing is needed. And we want to see that,” he said.

BRIN‘s Head of the Research Center for Plant Conservation and Botanical Gardens Sukma Surya Kusumah said that there are three research activities conducted to see changes in the plant characteristics. First, on the topic of Spatial Modeling of the Impact of Artificial Night Light on Plants’ Health Using Unmanned Aerial Vehicles and Machine Learning (Case Study of Bogor Botanical Garden).

Second, on Analysis of the Effect of Artificial Light at Night (ALAN) on the Ecophysiological Functions of Several Types of Tropical Plants in the Bogor Botanical Gardens. Third, we would like to know the spectrum (wavelength) of ALAN which has minimal influence on the ecophysiological functions of tropical plants and the intensity of ALAN radiation which has minimal influence on the ecophysiological functions of tropical plants. (add)