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All Journal Jurnal BETA (Biosistem dan Teknik Pertanian)
I Made Anom Sutrisna Wijaya
Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, Udayana University, Badung,Bali,Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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The Effects of LED Red, Blue, and White Light Colors Proportionon Chlorophyll Content and Canopy Area of Pakcoy (Brassica rapa L.) Linda Puji Ayu Lestari; I Made Anom Sutrisna Wijaya; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 2 (2022): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i02.p14

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.
The Effect of Exposure Length to Jazz Music on The Production of Pakcoy (Brassica Rapa, L) in Indoor Cultivation Devi Suharni Tamba; I Made Anom Sutrisna Wijaya; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 2 (2022): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i02.p19

Abstract

The photosynthesis process in indoorcultivation system does not get optimal sunlight, therefore LEDs can be used as artificial light. The red-blue color is a color that has a positive effect on plant growth. In addition, to increase the rate of photosynthesis, one of the technology advances that can be used is sonic bloom. Sonic bloomis the delivery of high-frequency sound wavesin plants to stimulate the opening of the leaf stomata mouths which is accelerating the rate of absorption of carbon dioxide, water and soil minerals. In this study,Pakcoywas exposed to jazzmusic to determine the effect on production of Pakcoy,and the best length of exposure. The length of exposure to jazz musicwas 1 hour, 2 hours, 3 hours, 4 hours,and 5 hours starting from 07.00 WITA. The type of jazz music used wasJazzRock with the musical instrument Gambandellaby Psychedelic Jazz-Rock Fusion with a frequency of 86 –21189 Hz and a sound intensity of 65-95 dB. In the growth chamber, artificial light red-blue LED was used with a light intensity of 1900 –2100Lux. The results showed the lengthof exposure to jazz music significantly affected the production of Pakcoy. The exposure length of 5 hours showed the best result (fresh harvest weight 55.49 gs, root wet weight 2.18 gs, and biomass 2.95 gs). In conclusion, exposure length to jazz music has a positive effect on Pakcoyproduction.
Co-Authors Devi Suharni Tamba I Gusti Ketut Arya Arthawan Ida Bagus Putu Gunadnya Linda Puji Ayu Lestari