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EVEC Microgreens
Effects of Greenhouse vs. Growth Chamber and Different Blue-Light Percentages on the Growth Performance and Quality of Broccoli Microgreens
Microgreens are a product category with a biochemical content that is currently earning them the status of a functional food. The genotype of the microgree
Onofrio Davide Palmitessa, Alessio Gadaleta, Beniamino Leoni, Massimiliano Renna, Angelo Signore, Vito Michele Paradiso, Pietro Santamaria
Agronomy · 2022 · https://doi.org/10.3390/agronomy12051161
Abstract
Microgreens are a product category with a biochemical content that is currently earning them the status of a functional food. The genotype of the microgreens, and environmental factors, such as the photosynthetic photon flux density (PPFD) and light spectra, can influence the yield and biochemical profile. A landrace of broccoli called ‘Mugnoli’ was compared with a commercial variety (‘Broccolo Natalino’) in two microgreen growing systems (greenhouse vs. growth chamber) and under three growth chamber light spectra (blue, control, control + blue). The results showed that both Mugnoli and Broccolo Natalino can be used to produce microgreens, achieving similar yields, but that Mugnoli showed notably higher polyphenols and antioxidant contents. Due the higher PFFD of the greenhouse environment, microgreens yields were 18% higher than the yields from cultivation in the growth chamber. Regarding the results under different growth chamber spectra, monochromatic blue caused reductions in the microgreens yield and polyphenols content of 13.5% and 14.2%, respectively. In conclusion, Mugnoli can be considered a valuable genetic source for the production of microgreens given its fast crop cycle, good fresh weight production, and, compared to Broccolo Natalino, its superior biochemical content and lower susceptibility to PPFD variations.
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How to credit this work
Onofrio Davide Palmitessa; Alessio Gadaleta; Beniamino Leoni; Massimiliano Renna; Angelo Signore; Vito Michele Paradiso; Pietro Santamaria (2022). Effects of Greenhouse vs. Growth Chamber and Different Blue-Light Percentages on the Growth Performance and Quality of Broccoli Microgreens. Agronomy. https://doi.org/10.3390/agronomy12051161 Licensed under Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/). Hosted by EVEC Athens (microgreens.org.gr). No changes were made to this article. Provided as-is, without warranties. EVEC Athens is not affiliated with, and this copy is not endorsed by, the authors or the publisher.
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