Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/23611 https://doi.org/Peixe, A., Ribeiro, H., Ribeiro, A., Soares, M., Machado, R., Rato, A. E., & Coelho, R. (2018). Analysis of Growth Parameters for Crop Vegetables under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs. Journal of Plant Studies, 7(1), 47. https://doi.org/10.5539/jps.v7n1p47 https://doi.org/10.5539/jps.v7n1p47 |
Resumo: | Several physiological and yield parameters were evaluated in lettuce plants, cv. ‘Trocadero’, while growing at four different photosynthetic photon flux (PPF) (70, 120, 250 and 400 ± 10 µmol m-2 s-1), under four light spectra, white (W), red (R) and blue (B) Light-Emitting Diode (LED) lamps and cool white fluorescent tubes (FL). Yield parameters were also evaluated on spinach, turnip and radish, growing under identical light spectra but using a single PPF (340 ± 10 µmol m-2 s-1). Lettuce development was impaired at PPFs below 250 µmol m-2 s-1 for all tested spectra. At higher PPFs (250 and 400 ± 10 µmol m-2 s-1), for the two broad spectra tested (W LEDs and FL light), no significant differences were registered on all physiological and yield parameters evaluated. On all situations W LEDs performed, at least, as good as the FL light, indicating that actual W LEDs can efficiently replace traditional light sources, with all the inherent benefits, which include significant lower power consumption. For all species, narrow light spectra (R and B LEDs) proved not being able to provide normal plant development. Plants under R LEDs, although presenting, in some situations, a fresh weight higher than those achieved with the broad light spectra, always led to abnormal plant morphology, characterized by expanded petioles and leaf curling. B LEDs, in spite of promoting plant growth with normal morphology, frequently led to a lower number of leaves and consequently to a lower fresh weight. |
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Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFscontrolled environmentlight intensitylight spectraphotosynthesisplant growthyield parametersSeveral physiological and yield parameters were evaluated in lettuce plants, cv. ‘Trocadero’, while growing at four different photosynthetic photon flux (PPF) (70, 120, 250 and 400 ± 10 µmol m-2 s-1), under four light spectra, white (W), red (R) and blue (B) Light-Emitting Diode (LED) lamps and cool white fluorescent tubes (FL). Yield parameters were also evaluated on spinach, turnip and radish, growing under identical light spectra but using a single PPF (340 ± 10 µmol m-2 s-1). Lettuce development was impaired at PPFs below 250 µmol m-2 s-1 for all tested spectra. At higher PPFs (250 and 400 ± 10 µmol m-2 s-1), for the two broad spectra tested (W LEDs and FL light), no significant differences were registered on all physiological and yield parameters evaluated. On all situations W LEDs performed, at least, as good as the FL light, indicating that actual W LEDs can efficiently replace traditional light sources, with all the inherent benefits, which include significant lower power consumption. For all species, narrow light spectra (R and B LEDs) proved not being able to provide normal plant development. Plants under R LEDs, although presenting, in some situations, a fresh weight higher than those achieved with the broad light spectra, always led to abnormal plant morphology, characterized by expanded petioles and leaf curling. B LEDs, in spite of promoting plant growth with normal morphology, frequently led to a lower number of leaves and consequently to a lower fresh weight.Canadian Center of Science and Education2018-10-19T16:12:08Z2018-10-192018-02-23T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/23611https://doi.org/Peixe, A., Ribeiro, H., Ribeiro, A., Soares, M., Machado, R., Rato, A. E., & Coelho, R. (2018). Analysis of Growth Parameters for Crop Vegetables under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs. Journal of Plant Studies, 7(1), 47. https://doi.org/10.5539/jps.v7n1p47http://hdl.handle.net/10174/23611https://doi.org/10.5539/jps.v7n1p47porhttp://www.ccsenet.org/journal/index.php/jps/article/view/73743FITapeixe@uevora.ptndndndrmam@uevora.ptaerato@uevora.ptrcoelho@uevora.pt582Peixe, AugustoRibeiro, HugoRibeiro, AugustoSoares, MarcoMachado, RuiRato, Ana ElisaCoelho, Renatoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:15:46Zoai:dspace.uevora.pt:10174/23611Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:14:22.584962Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
title |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
spellingShingle |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs Peixe, Augusto controlled environment light intensity light spectra photosynthesis plant growth yield parameters |
title_short |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
title_full |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
title_fullStr |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
title_full_unstemmed |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
title_sort |
Analysis of Growth Parameters for Crop Vegetables Under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs |
author |
Peixe, Augusto |
author_facet |
Peixe, Augusto Ribeiro, Hugo Ribeiro, Augusto Soares, Marco Machado, Rui Rato, Ana Elisa Coelho, Renato |
author_role |
author |
author2 |
Ribeiro, Hugo Ribeiro, Augusto Soares, Marco Machado, Rui Rato, Ana Elisa Coelho, Renato |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Peixe, Augusto Ribeiro, Hugo Ribeiro, Augusto Soares, Marco Machado, Rui Rato, Ana Elisa Coelho, Renato |
dc.subject.por.fl_str_mv |
controlled environment light intensity light spectra photosynthesis plant growth yield parameters |
topic |
controlled environment light intensity light spectra photosynthesis plant growth yield parameters |
description |
Several physiological and yield parameters were evaluated in lettuce plants, cv. ‘Trocadero’, while growing at four different photosynthetic photon flux (PPF) (70, 120, 250 and 400 ± 10 µmol m-2 s-1), under four light spectra, white (W), red (R) and blue (B) Light-Emitting Diode (LED) lamps and cool white fluorescent tubes (FL). Yield parameters were also evaluated on spinach, turnip and radish, growing under identical light spectra but using a single PPF (340 ± 10 µmol m-2 s-1). Lettuce development was impaired at PPFs below 250 µmol m-2 s-1 for all tested spectra. At higher PPFs (250 and 400 ± 10 µmol m-2 s-1), for the two broad spectra tested (W LEDs and FL light), no significant differences were registered on all physiological and yield parameters evaluated. On all situations W LEDs performed, at least, as good as the FL light, indicating that actual W LEDs can efficiently replace traditional light sources, with all the inherent benefits, which include significant lower power consumption. For all species, narrow light spectra (R and B LEDs) proved not being able to provide normal plant development. Plants under R LEDs, although presenting, in some situations, a fresh weight higher than those achieved with the broad light spectra, always led to abnormal plant morphology, characterized by expanded petioles and leaf curling. B LEDs, in spite of promoting plant growth with normal morphology, frequently led to a lower number of leaves and consequently to a lower fresh weight. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-19T16:12:08Z 2018-10-19 2018-02-23T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/23611 https://doi.org/Peixe, A., Ribeiro, H., Ribeiro, A., Soares, M., Machado, R., Rato, A. E., & Coelho, R. (2018). Analysis of Growth Parameters for Crop Vegetables under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs. Journal of Plant Studies, 7(1), 47. https://doi.org/10.5539/jps.v7n1p47 http://hdl.handle.net/10174/23611 https://doi.org/10.5539/jps.v7n1p47 |
url |
http://hdl.handle.net/10174/23611 https://doi.org/Peixe, A., Ribeiro, H., Ribeiro, A., Soares, M., Machado, R., Rato, A. E., & Coelho, R. (2018). Analysis of Growth Parameters for Crop Vegetables under Broad and Narrow LED Spectra and Fluorescent Light Tubes at Different PPFs. Journal of Plant Studies, 7(1), 47. https://doi.org/10.5539/jps.v7n1p47 https://doi.org/10.5539/jps.v7n1p47 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.ccsenet.org/journal/index.php/jps/article/view/73743 FIT apeixe@uevora.pt nd nd nd rmam@uevora.pt aerato@uevora.pt rcoelho@uevora.pt 582 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Canadian Center of Science and Education |
publisher.none.fl_str_mv |
Canadian Center of Science and Education |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136625347788800 |