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Acta Agraria Debreceniensis

No. 1 (2022)
Articles

Microgreen leaf vegetable production by different wavelengths

Published:
2022-05-26
DOI Linkhttps://doi.org/10.34101/actaagrar/1/10449
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Keywords
microgreens LEDs carotenoids chlorophyll-a chlorophyll-b
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Selected Style: APA
Kovácsné Madar, Ágota, Vargas-Rubóczki, T., & Takácsné Hájos, M. (2022). Microgreen leaf vegetable production by different wavelengths. Acta Agraria Debreceniensis, 1, 79-84. https://doi.org/10.34101/actaagrar/1/10449
Received 2021-12-15
Accepted 2022-04-21
Published 2022-05-26
Abstract

Microgreens are becoming more popular in gastronomy, especially as a salad ingredient. In this study, two plant species belonging to the cabbage family were grown as microgreens, namely red cabbage and broccoli. Three different light-emitting diodes (LEDs) were used in the experiment, blue, red, and combined (blue:red) lighting. The experiment was carried out by 118 µmol-2 s-1total Photosynthetic Photon Flux (PPF), LED lighting was applied for 16 hours a day. Blue light primarily stimulates leaf growth, while red light promotes flowering. In our experiment, blue and combined lighting favorably affected plant development, yield (~3000 g m-2), chlorophyll-a (~8.0 mg g-1), and carotenoid content (9.0 mg g-1). However, the red light resulted in reduced harvest yields (~2200 g m-2), chlorophyll-a (~6.0 mg g-1), and carotenoid content (~7.0 mg g-1). The development of red cabbage was favorably influenced by the blue spectrum, while the combined spectrum favorably influenced the development of broccoli.

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