Next Article in Journal
Breeding of High Cooking and Eating Quality in Rice by Marker-Assisted Backcrossing (MABc) Using KASP Markers
Previous Article in Journal
Aromatic Profile Variation of Essential Oil from Dried Makwhaen Fruit and Related Species
Previous Article in Special Issue
Effect of Multispectral Pulsed Light-Emitting Diodes on the Growth, Photosynthetic and Antioxidant Response of Baby Leaf Lettuce (Lactuca sativa L.)
Article

Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment

1
Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, Kaunas str. 30, LT-54333 Babtai, Lithuania
2
Department of Ecology and Silviculture, Faculty of Forestry, University of Agriculture in Krakow, 31-425 Krakow, Poland
*
Author to whom correspondence should be addressed.
Academic Editors: Giedrė Samuolienė and Eva Darko
Plants 2021, 10(4), 801; https://doi.org/10.3390/plants10040801
Received: 10 March 2021 / Revised: 15 April 2021 / Accepted: 16 April 2021 / Published: 19 April 2021
The consumption of microgreens has increased due to their having higher levels of bioactive compounds and mineral nutrients than mature plants. The lighting conditions during the cultivation of microgreens, if optimally selected, can have a positive effect by further increasing their nutritional value. Thus, our study aimed to determine the changes in mineral nutrients contents of Brassicaceae microgreens depending on different blue–red (B:R) light ratios in light-emitting diode (LED) lighting and to evaluate their growth and nutritional value according to different indexes. Experiments were performed in controlled environment growth chambers at IH LRCAF, 2020. Microgreens of mustard (Brassica juncea ‘Red Lace’) and kale (Brassica napus ‘Red Russian’) were grown hydroponically under different B:R light ratios: 0%B:100%R, 10%B:90%R, 25%B:75%R, 50%B:50%R, 75%B:25%R, and 100%B:0%R. A 220 μmol m−2 s−1 total photon flux density (TPFD), 18 h photoperiod, 21/17 ± 2 °C temperature and 60% ± 5% relative humidity in the growth chamber were maintained during cultivation. We observed that an increasing percentage of blue light in the LED illumination spectrum during growth was associated with reduced elongation in the microgreens of both species and had a positive effect on the accumulation of mostly macro- and micronutrients. However, different B:R light ratios indicate a species-dependent response to changes in growth parameters such as leaf area, fresh and dry mass, and optical leaf indexes such as for chlorophyll, flavonol, anthocyanin, and carotenoid reflectance. View Full-Text
Keywords: microgreens; blue light; red light; LED; mineral elements microgreens; blue light; red light; LED; mineral elements
Show Figures

Figure 1

MDPI and ACS Style

Brazaitytė, A.; Miliauskienė, J.; Vaštakaitė-Kairienė, V.; Sutulienė, R.; Laužikė, K.; Duchovskis, P.; Małek, S. Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment. Plants 2021, 10, 801. https://doi.org/10.3390/plants10040801

AMA Style

Brazaitytė A, Miliauskienė J, Vaštakaitė-Kairienė V, Sutulienė R, Laužikė K, Duchovskis P, Małek S. Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment. Plants. 2021; 10(4):801. https://doi.org/10.3390/plants10040801

Chicago/Turabian Style

Brazaitytė, Aušra, Jurga Miliauskienė, Viktorija Vaštakaitė-Kairienė, Rūta Sutulienė, Kristina Laužikė, Pavelas Duchovskis, and Stanisław Małek. 2021. "Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment" Plants 10, no. 4: 801. https://doi.org/10.3390/plants10040801

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop