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Agronomy
Volume 9
Issue 5
10.3390/agronomy9050224
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Article

Optimization of Photosynthetic Photon Flux Density and Root-Zone Temperature for Enhancing Secondary Metabolite Accumulation and Production of Coriander in Plant Factory

by
Duyen T. P. Nguyen
1,
Na Lu
2,*,
Natsuko Kagawa
1,2,* and
Michiko Takagaki
1
1
Graduate School of Horticulture, Chiba University, 648 Matsudo, Chiba 271-8510, Japan
2
Center for Environment, Health and Field Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
*
Authors to whom correspondence should be addressed.
Agronomy 2019, 9(5), 224; https://doi.org/10.3390/agronomy9050224
Received: 29 March 2019 / Revised: 29 April 2019 / Accepted: 30 April 2019 / Published: 30 April 2019
(This article belongs to the Section Horticultural and Floricultural Crops)
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Abstract

Coriander is an important aromatic plant, and contains abundant secondary metabolites that are considered to be beneficial for health. The demand for high-quality and fresh coriander in large cities has been growing rapidly. Plant factories are advanced indoor cultivation systems that can produce high-quality plants inside cities with a high productivity. This study aimed to maximize plant growth and the secondary metabolites production of coriander, by regulating photosynthetic photon flux density (PPFD) and root-zone temperature (RZT). Three PPFDs (100, 200, and 300 µmol m−2 s−1) and three RZTs (20, 25, and 30 °C) were applied on coriander plants grown hydroponically in a plant factory. The plant biomass and water content of leaf and stem were highest under RZT of 25 °C with a PPFD of 300 µmol m−2 s−1. However, chlorogenic acid, rutin, trans-2-decenal, total phenolic concentrations and the antioxidant capacity of the coriander plant were greatest under the combination of PPFD (300 µmol m−2 s−1) and RZT (30 °C). Chlorogenic acid in leaves responded more sensitively to PPFD and RZT than rutin. Controlling PPFD and RZT is effective in optimizing the yield and quality of coriander plants. The findings are expected to be applied to commercial plant production in plant factories. View Full-Text
Keywords: antioxidant capacity; chlorogenic acid; Coriandrum sativum L., rutin; trans-2-Decenal; total phenolic content antioxidant capacity; chlorogenic acid; Coriandrum sativum L., rutin; trans-2-Decenal; total phenolic content
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MDPI and ACS Style

Nguyen, D.T.P.; Lu, N.; Kagawa, N.; Takagaki, M. Optimization of Photosynthetic Photon Flux Density and Root-Zone Temperature for Enhancing Secondary Metabolite Accumulation and Production of Coriander in Plant Factory. Agronomy 2019, 9, 224. https://doi.org/10.3390/agronomy9050224

AMA Style

Nguyen DTP, Lu N, Kagawa N, Takagaki M. Optimization of Photosynthetic Photon Flux Density and Root-Zone Temperature for Enhancing Secondary Metabolite Accumulation and Production of Coriander in Plant Factory. Agronomy. 2019; 9(5):224. https://doi.org/10.3390/agronomy9050224

Chicago/Turabian Style

Nguyen, Duyen T. P., Na Lu, Natsuko Kagawa, and Michiko Takagaki. 2019. "Optimization of Photosynthetic Photon Flux Density and Root-Zone Temperature for Enhancing Secondary Metabolite Accumulation and Production of Coriander in Plant Factory" Agronomy 9, no. 5: 224. https://doi.org/10.3390/agronomy9050224

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