The Effects of LED Red, Blue, and White Light Colors Proportionon Chlorophyll Content and Canopy Area of Pakcoy (Brassica rapa L.)

Authors

  • Linda Puji Ayu Lestari Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, Udayana University, Badung,Bali,Indonesia
  • I Made Anom Sutrisna Wijaya Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, Udayana University, Badung,Bali,Indonesia
  • Ida Bagus Putu Gunadnya Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, Udayana University, Badung,Bali,Indonesia

DOI:

https://doi.org/10.24843/JBETA.2022.v10.i02.p14

Keywords:

canopy area, chlorophyll content, LED light proportion, Pakcoy

Abstract

Light is the main energy source for plants for the photosynthesis process. In indoor cultivation systems (plant factories), LEDs can be used as artificial light. The dominant light colors absorbed by plants for the photosynthesis process are red and blue, but the proportion of the LED colors used is unknown, so it is necessary to research the proportions of light colors. This study aims to determine the effect of the proportions of red, blue, and white light on the chlorophyll content (SPAD value) and the canopy area of Pakcoy. Pakcoy was planted in a growth chamber and given seven different proportions of light for 12 hours with a lamp total of 60 Watt and light intensity of 2000 lux. This study was conducted for 49 days, and the observations to make once aweek. The results showed the proportion of red, blue, and white LED light treatment affects the chlorophyll content and canopy area. The proportions of LED light 30 Watt red, 20 Watt blue, and 10 Wattwhite produced the highest chlorophyll content (35.0 SPAD value) and canopy area (70.7 cm2). In conclusion, the proportion of red, blue, and white LED light showed significantly different in the growth of Pakcoy.

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Published

2022-09-30

How to Cite

Lestari, L. P. A., Wijaya, I. M. A. S., & Gunadnya, I. B. P. (2022). The Effects of LED Red, Blue, and White Light Colors Proportionon Chlorophyll Content and Canopy Area of Pakcoy (Brassica rapa L.). Jurnal BETA (Biosistem Dan Teknik Pertanian), 10(2), 315–320. https://doi.org/10.24843/JBETA.2022.v10.i02.p14

Issue

Vol. 10 No. 2 (2022): September

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