Use of Different Artificial Lighting Spectra with Leds in Indoor Production of Arugula Microgreens (Euruca sativa)

Abstract

Microgreens are forms of production and consumption of plant foods in their early growth phase that add maximum efficiency to the production process. The use of this crop has been used in large urban centers, in places with low luminosity, being the main problem was the choice of an adequate source of lighting for the production of microgreen in vertical urban farms. The objective of this work was to evaluate the use of different sources of artificial lighting with LED in the indoor production of arugula (Euruca sativa) microgreen. Six treatments were evaluated, namely: 1. Three 50w cold white Led boards (3BF), 2. Three 50w warm white Led boards (3BQ), 3. Three 50w full spectrum Led boards (3FS), 4 Two 50w full spectrum Led boards, and one 50w cold white Led board (2FS + 1BF), 5. One 50w full spectrum Led boards, one 50w cold white Led board and one 50w warm white Led board (FS + BF + BQ), 6. For ambient lighting (Control), the parameters analyzed were Fresh weight of shoot (FWS in g) and Dry weight of shoot (DWS in g). The use of different artificial lighting sources with LEDs increased the mass production of indoor cultivation of arugula microgreens, which demonstrates greater efficiency for plant growth, with the sources (3BQ), (3BF), and (1FS + 1BF + 1BQ), showing the best result in the development of arugula microgreens, thus generating greater aerial part mass in plants.

Factors Affecting Production, Nutrient Translocation Mechanisms, and LED Emitted Light in Growth of Microgreen Plants in Soilless Culture

“…The agricultural and horticultural microgreen plant requires specific temperatures and humidity for production in closed and open systems. Temperature and humidity of 30–33 °C, 75–80% for rice grass, 15–32 °C, 80–85% for barley grass, 16–27 °C, 75–80% for oat grass, 23–28 °C, 60–70% for wheat grass, 29–32 °C, 30% for jowar grass, 25–34 °C, 52–88% for maize grass, 10–21 °C, 8–80% for buckwheat, 21–26 °C, 14–16% for chickpea, 18–21 °C, 50–60% for mint, 17–27 °C, 60–70% for coriander, 21 °C, 50–60% for basil, 24–29 °C, 75% for rosemary, 32 °C, 95–100% for parsley, 9.2–23.8 °C, 50–100% for saltwort, 21 °C, 50–70% for shisho, −1.11 °C, 50–75% for sorrel, 18–23 °C, 60–70% for sage, 18–23 °C, 40–60% for beet, 15–24 °C, 50–70% for chard, 24–26 °C, 11–96% for quinoa, 22–26 °C, 100% for spinach, 33–36 °C, 80% for chives, 32–50 °C, 65–75% for garlic, 18–23 °C, 95–100% for leek, 55–75 °C, 40–50% for onion, 15–21 °C, 60–70% for carrot, 14–26 °C, 90–95% for celery, 16–18 °C, 58–63% for dill, 60–70 °C, 50–65% for fennel, 10–29 °C, 50–60% for radish, 15–17 °C, 50–60% for aster cress, 15–21 °C, 76% for mustard, 7.2–29.4 °C, 55–65% for kale, 25–30 °C, 40–70% for kohlrabi, 7.2–18 °C, 90–95% for arugula, 25 °C day/23 °C night, 60% for sunflower, 25–34 °C, 50–60% for linseed, 23–25 °C, 90–95% for chicory, 15–18 °C, 95–98% for endive, 20 °C, 80% for lettuce, 15–21 °C, 40–50% for beans, 12–25 °C, 40–50% for welsh onion, 12–25 °C, 40–50% for long green onion, and 23–32 °C, 90–95% for red swiss chard are required for microgreen plant production.…”

“…95,96 The agricultural and horticultural microgreen plant requires specific temperatures and humidity for production in closed and open systems. Temperature and humidity of 30−33 °C, 75−80% for rice grass, 97 15−32 °C, 80−85% for barley grass, 98 16−27 °C, 75−80% for oat grass, 99 23−28 °C, 60−70% for wheat grass, 100 29−32 °C, 30% for jowar grass, 101 25−34 °C, 52−88% for maize grass, 102 10−21 °C, 8−80% for buckwheat, 103 21−26 °C, 14−16% for chickpea, 104 18−21 °C, 50−60% for mint, 105 17−27 °C, 60−70% for coriander, 106 21 °C, 50−60% for basil, 107 110 21 °C, 50−70% for shisho, 111 −1.11 °C, 50−75% for sorrel, 112 18−23 °C, 60−70% for sage, 113 18−23 °C, 40− 60% for beet, 114 15−24 °C, 50−70% for chard, 115 24−26 °C, 11−96% for quinoa, 116 22−26 °C, 100% for spinach, 117 33−36 °C, 80% for chives, 118 32−50 °C, 65−75% for garlic, 119 18−23 °C, 95−100% for leek, 120 55−75 °C, 40−50% for onion, 121 15−21 °C, 60−70% for carrot, 122 14−26 °C, 90−95% for celery, 123 16−18 °C, 58−63% for dill, 124 60−70 °C, 50−65% for fennel, 125 10−29 °C, 50−60% for radish, 126 15−17 °C, 50−60% for aster cress, 127 15−21 °C, 76% for mustard, 128 7.2−29.4 °C, 55−65% for kale, 129 25−30 °C, 40−70% for kohlrabi, 130 7.2−18 °C, 90−95% for arugula, 131 25 °C day/23 °C night, 60% for sunflower, 132 25−34 °C, 50−60% for linseed, 133 23−25 °C, 90−95% for chicory,…”

Optimasi Waktu Pemaparan Cahaya Monokromatik terhadap Produktivitas Mikrogreens Pakcoy melalui Sistem Internet of Things

“…Intensitas cahaya yang optimal sangatlah penting dalam budidaya microgreen secara indoor sangat mempengaruhi proses fotosintesisi pada microgreen dalam proses terjadinya fotosintesis, klorofil dapat menyerap gelombang biru dengan Panjang gelombang (400 -500 nm) hingga merah sebanyak (600 -700 nm) sehingga cahaya buatan yang dirancang untuk pertumbuhan tanaman harus memancarkan gelombang yang terukur dan sesuai dengan kebutuhan tanaman (Ikrarwati et al, 2020). Banyak penelitian tentang pemanfaatan lampu LED pada tanaman telah dilakukan (Ribeiro et al, 2022). menemukan bahwa lampu LED merah memiliki dampak positif terhadap pertumbuhan tanaman.…”