Growth Analysis of Kailan (Brassica oleraceae L.) Plants Cultivation with Power and Irradiation Distance Treatment of LED Bulbs

Kailan is a vegetable that belongs to the cabbage family, originating from China. The development of science and technology has had an impact on the development of agricultural engineering, for example, the hydroponic system as an alternative to plant cultivation without a large area of land and the use of LED lamps (Light Emitting Diode) as a medium for adding light other than sunlight to optimize the process of plant photosynthesis. The purpose of this research is to know the effect of variations in power and distance of LED bulb lamps on the growth and production results of the kailan plant. This research was carried out by experimental research methods in the field. The method used is with a Randomized Design Group with two factors: the power of LED (10, 20, 30, and 40 watts) and the distance (60 and 80 cm) from the light source to the plant. The data that has been obtained is analyzed using the Duncan Multiple Range Test method with a Confidence Level of 5%. The results of the research showed that the best variation for the growth and production of kailan plants is a variation in the power of 10 watts with 60 cm.