Physiological role of silicon in radish seedlings under ammonium toxicity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/jsfa.10587 http://hdl.handle.net/11449/200745 |
Resumo: | BACKGROUND: High concentrations of ammonium as the sole nitrogen source may result in physiological and nutritional disorders that can lead to reduced plant growth and toxicity. In this study, we hypothesized that ammonium toxicity in radish seedlings (Raphanus sativus L.) might be mitigated by the incorporation of silicon (Si) into applied nutrient solution. To examine this possibility, we conducted a hydroponic experiment to evaluate the effects of five concentrations of ammonium (1, 7.5, 15, 22.5, and 30 mmol L−1) on the photosynthesis, green color index, stomatal conductance, transpiration, instantaneous water-use efficiency, and biomass production of radish in the absence and presence (2 mmol L−1) of Si. The experimental design was a randomized block design based on a 2 × 5 factorial scheme with four replicates. RESULTS: The highest concentration of applied ammonium (30 mmol L−1) was found to reduce the photosynthesis, transpiration and total dry biomass of radish seedlings, independent of the presence of Si in the nutrient solution. However, at lower ammonium concentrations, the application of Si counteracted these detrimental effects, and facilitated the production of seedlings with increased photosynthesis, greater instantaneous water-use efficiency, and higher total dry biomass compared with the untreated plants (without Si). Transpiration and stomatal conductance were affected to lesser extents by the presence of Si. CONCLUSION: These findings indicate that the addition of Si to nutrient solutions could provide an effective means of alleviating the unfavorable effects induced by ammonium toxicity at concentrations of less than 30 mmol L−1. © 2020 Society of Chemical Industry. |
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Physiological role of silicon in radish seedlings under ammonium toxicityabiotic stresshydroponicsnitrogenRaphanus sativus LtolerancevegetableBACKGROUND: High concentrations of ammonium as the sole nitrogen source may result in physiological and nutritional disorders that can lead to reduced plant growth and toxicity. In this study, we hypothesized that ammonium toxicity in radish seedlings (Raphanus sativus L.) might be mitigated by the incorporation of silicon (Si) into applied nutrient solution. To examine this possibility, we conducted a hydroponic experiment to evaluate the effects of five concentrations of ammonium (1, 7.5, 15, 22.5, and 30 mmol L−1) on the photosynthesis, green color index, stomatal conductance, transpiration, instantaneous water-use efficiency, and biomass production of radish in the absence and presence (2 mmol L−1) of Si. The experimental design was a randomized block design based on a 2 × 5 factorial scheme with four replicates. RESULTS: The highest concentration of applied ammonium (30 mmol L−1) was found to reduce the photosynthesis, transpiration and total dry biomass of radish seedlings, independent of the presence of Si in the nutrient solution. However, at lower ammonium concentrations, the application of Si counteracted these detrimental effects, and facilitated the production of seedlings with increased photosynthesis, greater instantaneous water-use efficiency, and higher total dry biomass compared with the untreated plants (without Si). Transpiration and stomatal conductance were affected to lesser extents by the presence of Si. CONCLUSION: These findings indicate that the addition of Si to nutrient solutions could provide an effective means of alleviating the unfavorable effects induced by ammonium toxicity at concentrations of less than 30 mmol L−1. © 2020 Society of Chemical Industry.Faculty of Agricultural and Veterinarian Sciences Department of Soils and Fertilizers São Paulo State University (UNESP) JaboticabalInternational Graduate School University of GranadaFaculty of Agricultural Science University of Camagüey Ignacio Agramonte (UC)National University of Río Negro Sede Alto Valle & Valle MedioFaculty of Agricultural and Veterinarian Sciences Department of Soils and Fertilizers São Paulo State University (UNESP) JaboticabalUniversidade Estadual Paulista (Unesp)University of GranadaUniversity of Camagüey Ignacio Agramonte (UC)Sede Alto Valle & Valle MedioOlivera Viciedo, Dilier [UNESP]de Mello Prado, Renato [UNESP]Lizcano Toledo, RodolfoSalas Aguilar, Dayamidos Santos, Luiz Claudio Nascimento [UNESP]Calero Hurtado, Alexander [UNESP]Peña Calzada, Kolima [UNESP]Betancourt Aguilar, Carmen2020-12-12T02:14:56Z2020-12-12T02:14:56Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/jsfa.10587Journal of the Science of Food and Agriculture.1097-00100022-5142http://hdl.handle.net/11449/20074510.1002/jsfa.105872-s2.0-85087813353Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Science of Food and Agricultureinfo:eu-repo/semantics/openAccess2024-06-07T14:24:06Zoai:repositorio.unesp.br:11449/200745Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:17:28.746821Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Physiological role of silicon in radish seedlings under ammonium toxicity |
title |
Physiological role of silicon in radish seedlings under ammonium toxicity |
spellingShingle |
Physiological role of silicon in radish seedlings under ammonium toxicity Olivera Viciedo, Dilier [UNESP] abiotic stress hydroponics nitrogen Raphanus sativus L tolerance vegetable |
title_short |
Physiological role of silicon in radish seedlings under ammonium toxicity |
title_full |
Physiological role of silicon in radish seedlings under ammonium toxicity |
title_fullStr |
Physiological role of silicon in radish seedlings under ammonium toxicity |
title_full_unstemmed |
Physiological role of silicon in radish seedlings under ammonium toxicity |
title_sort |
Physiological role of silicon in radish seedlings under ammonium toxicity |
author |
Olivera Viciedo, Dilier [UNESP] |
author_facet |
Olivera Viciedo, Dilier [UNESP] de Mello Prado, Renato [UNESP] Lizcano Toledo, Rodolfo Salas Aguilar, Dayami dos Santos, Luiz Claudio Nascimento [UNESP] Calero Hurtado, Alexander [UNESP] Peña Calzada, Kolima [UNESP] Betancourt Aguilar, Carmen |
author_role |
author |
author2 |
de Mello Prado, Renato [UNESP] Lizcano Toledo, Rodolfo Salas Aguilar, Dayami dos Santos, Luiz Claudio Nascimento [UNESP] Calero Hurtado, Alexander [UNESP] Peña Calzada, Kolima [UNESP] Betancourt Aguilar, Carmen |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of Granada University of Camagüey Ignacio Agramonte (UC) Sede Alto Valle & Valle Medio |
dc.contributor.author.fl_str_mv |
Olivera Viciedo, Dilier [UNESP] de Mello Prado, Renato [UNESP] Lizcano Toledo, Rodolfo Salas Aguilar, Dayami dos Santos, Luiz Claudio Nascimento [UNESP] Calero Hurtado, Alexander [UNESP] Peña Calzada, Kolima [UNESP] Betancourt Aguilar, Carmen |
dc.subject.por.fl_str_mv |
abiotic stress hydroponics nitrogen Raphanus sativus L tolerance vegetable |
topic |
abiotic stress hydroponics nitrogen Raphanus sativus L tolerance vegetable |
description |
BACKGROUND: High concentrations of ammonium as the sole nitrogen source may result in physiological and nutritional disorders that can lead to reduced plant growth and toxicity. In this study, we hypothesized that ammonium toxicity in radish seedlings (Raphanus sativus L.) might be mitigated by the incorporation of silicon (Si) into applied nutrient solution. To examine this possibility, we conducted a hydroponic experiment to evaluate the effects of five concentrations of ammonium (1, 7.5, 15, 22.5, and 30 mmol L−1) on the photosynthesis, green color index, stomatal conductance, transpiration, instantaneous water-use efficiency, and biomass production of radish in the absence and presence (2 mmol L−1) of Si. The experimental design was a randomized block design based on a 2 × 5 factorial scheme with four replicates. RESULTS: The highest concentration of applied ammonium (30 mmol L−1) was found to reduce the photosynthesis, transpiration and total dry biomass of radish seedlings, independent of the presence of Si in the nutrient solution. However, at lower ammonium concentrations, the application of Si counteracted these detrimental effects, and facilitated the production of seedlings with increased photosynthesis, greater instantaneous water-use efficiency, and higher total dry biomass compared with the untreated plants (without Si). Transpiration and stomatal conductance were affected to lesser extents by the presence of Si. CONCLUSION: These findings indicate that the addition of Si to nutrient solutions could provide an effective means of alleviating the unfavorable effects induced by ammonium toxicity at concentrations of less than 30 mmol L−1. © 2020 Society of Chemical Industry. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:14:56Z 2020-12-12T02:14:56Z 2020-01-01 |
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://dx.doi.org/10.1002/jsfa.10587 Journal of the Science of Food and Agriculture. 1097-0010 0022-5142 http://hdl.handle.net/11449/200745 10.1002/jsfa.10587 2-s2.0-85087813353 |
url |
http://dx.doi.org/10.1002/jsfa.10587 http://hdl.handle.net/11449/200745 |
identifier_str_mv |
Journal of the Science of Food and Agriculture. 1097-0010 0022-5142 10.1002/jsfa.10587 2-s2.0-85087813353 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Science of Food and Agriculture |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129305529548800 |