Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals
To produce high-quality broccoli microgreens, suitable light intensity for growth and phytochemical contents of broccoli microgreens in an artificial light plant factory were studied. Broccoli microgreens were irradiated under different photosynthetic photon flux density (PPFD): 30, 50, 70 and 90 μm...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/3/537 |
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| author | Meifang Gao Rui He Rui Shi Yiting Zhang Shiwei Song Wei Su Houcheng Liu |
| author_facet | Meifang Gao Rui He Rui Shi Yiting Zhang Shiwei Song Wei Su Houcheng Liu |
| author_sort | Meifang Gao |
| collection | DOAJ |
| description | To produce high-quality broccoli microgreens, suitable light intensity for growth and phytochemical contents of broccoli microgreens in an artificial light plant factory were studied. Broccoli microgreens were irradiated under different photosynthetic photon flux density (PPFD): 30, 50, 70 and 90 μmol·m<sup>−2</sup>·s<sup>−1</sup> with red: green: blue = 1:1:1 light-emitting diodes (LEDs). The broccoli microgreens grown under 50 μmol·m<sup>−2</sup>·s<sup>−1</sup> had the highest fresh weight, dry weight, and moisture content, while the phytochemical contents were the lowest. With increasing light intensity, the chlorophyll content increased, whereas the carotenoid content decreased. The contents of soluble protein, soluble sugar, free amino acid, flavonoid, vitamin C, and glucosinolates except for progoitrin in broccoli microgreens were higher under 70 μmol·m<sup>−2</sup>·s<sup>−1</sup>. Overall, 50 μmol·m<sup>−2</sup>·s<sup>−1</sup> was the optimal light intensity for enhancement of growth of broccoli microgreens, while 70 μmol·m<sup>−2</sup>·s<sup>−1</sup> was more feasible for improving the phytochemicals of broccoli microgreens in an artificial light plant factory. |
| first_indexed | 2024-03-10T13:18:04Z |
| format | Article |
| id | doaj.art-17ab09519eb34eceba78bff46eb57172 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T13:18:04Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-17ab09519eb34eceba78bff46eb571722023-11-21T10:14:46ZengMDPI AGAgronomy2073-43952021-03-0111353710.3390/agronomy11030537Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and PhytochemicalsMeifang Gao0Rui He1Rui Shi2Yiting Zhang3Shiwei Song4Wei Su5Houcheng Liu6College of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, ChinaTo produce high-quality broccoli microgreens, suitable light intensity for growth and phytochemical contents of broccoli microgreens in an artificial light plant factory were studied. Broccoli microgreens were irradiated under different photosynthetic photon flux density (PPFD): 30, 50, 70 and 90 μmol·m<sup>−2</sup>·s<sup>−1</sup> with red: green: blue = 1:1:1 light-emitting diodes (LEDs). The broccoli microgreens grown under 50 μmol·m<sup>−2</sup>·s<sup>−1</sup> had the highest fresh weight, dry weight, and moisture content, while the phytochemical contents were the lowest. With increasing light intensity, the chlorophyll content increased, whereas the carotenoid content decreased. The contents of soluble protein, soluble sugar, free amino acid, flavonoid, vitamin C, and glucosinolates except for progoitrin in broccoli microgreens were higher under 70 μmol·m<sup>−2</sup>·s<sup>−1</sup>. Overall, 50 μmol·m<sup>−2</sup>·s<sup>−1</sup> was the optimal light intensity for enhancement of growth of broccoli microgreens, while 70 μmol·m<sup>−2</sup>·s<sup>−1</sup> was more feasible for improving the phytochemicals of broccoli microgreens in an artificial light plant factory.https://www.mdpi.com/2073-4395/11/3/537light intensitybroccoli microgreensgrowthphytochemicals |
| spellingShingle | Meifang Gao Rui He Rui Shi Yiting Zhang Shiwei Song Wei Su Houcheng Liu Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals Agronomy light intensity broccoli microgreens growth phytochemicals |
| title | Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals |
| title_full | Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals |
| title_fullStr | Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals |
| title_full_unstemmed | Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals |
| title_short | Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals |
| title_sort | differential effects of low light intensity on broccoli microgreens growth and phytochemicals |
| topic | light intensity broccoli microgreens growth phytochemicals |
| url | https://www.mdpi.com/2073-4395/11/3/537 |
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