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Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture

This study aims to evaluate the impacts of the lighting photosynthetic photon flux density (PPFD) on the growth, photosynthesis, and antioxidant response of common purslane (Portulaca oleracea) cultivars to determine energy-efficient lighting strategies for CEA. Green and golden purslane cultivars w...

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Autores principales: Kudirka, Gediminas, Viršilė, Akvilė, Laužikė, Kristina, Sutulienė, Rūta, Samuolienė, Giedrė
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10609831/
https://www.ncbi.nlm.nih.gov/pubmed/37896086
http://dx.doi.org/10.3390/plants12203622
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author Kudirka, Gediminas
Viršilė, Akvilė
Laužikė, Kristina
Sutulienė, Rūta
Samuolienė, Giedrė
author_facet Kudirka, Gediminas
Viršilė, Akvilė
Laužikė, Kristina
Sutulienė, Rūta
Samuolienė, Giedrė
author_sort Kudirka, Gediminas
collection PubMed
description This study aims to evaluate the impacts of the lighting photosynthetic photon flux density (PPFD) on the growth, photosynthesis, and antioxidant response of common purslane (Portulaca oleracea) cultivars to determine energy-efficient lighting strategies for CEA. Green and golden purslane cultivars were cultivated in CEA chambers and four experimental treatments consisting of PPFDs of 150, 200, 250, and 300 ± 10 µmol m(−2)s(−1) were performed, representing daily light integrals (DLIs) of 8.64–17.28 mol m(−2)d(−1) throughout a 16 h photoperiod. The results show that photoresponses to light PPFDs are cultivar-specific. The green cultivar accumulates 174% more dry weight at 300 PPFD compared to the golden cultivar, and also has a higher LUE, but a lower ETR. Dry weight accumulation, plant height, and leaf area dependence on light intensity do not highlight the economic significance of light PPFD/DLI. The derivative parameter (Δ fresh weight (%)/ΔDLI %) more efficiently explains how the percentage increase in DLI due to an increased PPFD affects the percentage of biomass gain between these PPFD treatments. For both cultivars, the relative fresh weight gain is maximal when the lighting PPFD increases from 200 to 250 µmol m(−2)s(−1) and declines with PPFD increases from 250 to 300.
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spelling pubmed-106098312023-10-28 Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture Kudirka, Gediminas Viršilė, Akvilė Laužikė, Kristina Sutulienė, Rūta Samuolienė, Giedrė Plants (Basel) Article This study aims to evaluate the impacts of the lighting photosynthetic photon flux density (PPFD) on the growth, photosynthesis, and antioxidant response of common purslane (Portulaca oleracea) cultivars to determine energy-efficient lighting strategies for CEA. Green and golden purslane cultivars were cultivated in CEA chambers and four experimental treatments consisting of PPFDs of 150, 200, 250, and 300 ± 10 µmol m(−2)s(−1) were performed, representing daily light integrals (DLIs) of 8.64–17.28 mol m(−2)d(−1) throughout a 16 h photoperiod. The results show that photoresponses to light PPFDs are cultivar-specific. The green cultivar accumulates 174% more dry weight at 300 PPFD compared to the golden cultivar, and also has a higher LUE, but a lower ETR. Dry weight accumulation, plant height, and leaf area dependence on light intensity do not highlight the economic significance of light PPFD/DLI. The derivative parameter (Δ fresh weight (%)/ΔDLI %) more efficiently explains how the percentage increase in DLI due to an increased PPFD affects the percentage of biomass gain between these PPFD treatments. For both cultivars, the relative fresh weight gain is maximal when the lighting PPFD increases from 200 to 250 µmol m(−2)s(−1) and declines with PPFD increases from 250 to 300. MDPI 2023-10-20 /pmc/articles/PMC10609831/ /pubmed/37896086 http://dx.doi.org/10.3390/plants12203622 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kudirka, Gediminas
Viršilė, Akvilė
Laužikė, Kristina
Sutulienė, Rūta
Samuolienė, Giedrė
Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title_full Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title_fullStr Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title_full_unstemmed Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title_short Photosynthetic Photon Flux Density Effects on Portulaca olearacea in Controlled-Environment Agriculture
title_sort photosynthetic photon flux density effects on portulaca olearacea in controlled-environment agriculture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10609831/
https://www.ncbi.nlm.nih.gov/pubmed/37896086
http://dx.doi.org/10.3390/plants12203622
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