Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings

Autores
Faustino, Laura Inés; Moretti, Ana Paula; Graciano, Corina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Urea fertilization decreases Pinus taeda L. growth in clay soils of subtropical areas. The negative effect of urea is related to changes in some hydraulic traits, similar to those observed in plants growing under drought. The aims of this work were (i) to determine whether different sources of nitrogen applied as fertilizers produce similar changes in growth and hydraulic traits to those observed by urea fertilization and (ii) to analyze the impact of those changes in plant drought tolerance. Plants fertilized with urea, nitrate (NO3-) or ammonium (NH4+) were grown well watered or with reduced water supply. Urea and NO3- fertilization reduced plant growth and increased root hydraulic conductance scaled by root dry weight (DW). NH4+ fertilization did not reduce plant growth and increased shoot hydraulic conductance and stem hydraulic conductivity. We conclude that NO3- is the ion involved in the changes linked to the negative effect of urea fertilization on P. taeda growth. NH4+ fertilization does not change drought susceptibility and it produces changes in shoot hydraulic traits, therefore plants avoid the depressive effect of fertilization. Urea and NO3- fertilizers induce changes in DW and root hydraulic conductance and consequently plants are less affected by drought.
Instituto de Fisiología Vegetal
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Ciencias Naturales
Allocation
Dry weight
Fertilizer
Hydraulic conductance
Hydraulic conductivity
Nitrogen
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/86013
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/86013
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlingsFaustino, Laura InésMoretti, Ana PaulaGraciano, CorinaCiencias AgrariasCiencias NaturalesAllocationDry weightFertilizerHydraulic conductanceHydraulic conductivityNitrogenUrea fertilization decreases <i>Pinus taeda</i> L. growth in clay soils of subtropical areas. The negative effect of urea is related to changes in some hydraulic traits, similar to those observed in plants growing under drought. The aims of this work were (i) to determine whether different sources of nitrogen applied as fertilizers produce similar changes in growth and hydraulic traits to those observed by urea fertilization and (ii) to analyze the impact of those changes in plant drought tolerance. Plants fertilized with urea, nitrate (NO<SUB>3</SUB><SUP>-</SUP>) or ammonium (NH<SUB>4</SUB><SUP>+</SUP>) were grown well watered or with reduced water supply. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilization reduced plant growth and increased root hydraulic conductance scaled by root dry weight (DW). NH<SUB>4</SUB><SUP>+</SUP> fertilization did not reduce plant growth and increased shoot hydraulic conductance and stem hydraulic conductivity. We conclude that NO<SUB>3</SUB><SUP>-</SUP> is the ion involved in the changes linked to the negative effect of urea fertilization on P. taeda growth. NH<SUB>4</SUB><SUP>+</SUP> fertilization does not change drought susceptibility and it produces changes in shoot hydraulic traits, therefore plants avoid the depressive effect of fertilization. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilizers induce changes in DW and root hydraulic conductance and consequently plants are less affected by drought.Instituto de Fisiología VegetalFacultad de Ciencias Agrarias y Forestales2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1062-1074http://sedici.unlp.edu.ar/handle/10915/86013enginfo:eu-repo/semantics/altIdentifier/issn/0829-318Xinfo:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/tpv068info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:59Zoai:sedici.unlp.edu.ar:10915/86013Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:59.411SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
title Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
spellingShingle Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
Faustino, Laura Inés
Ciencias Agrarias
Ciencias Naturales
Allocation
Dry weight
Fertilizer
Hydraulic conductance
Hydraulic conductivity
Nitrogen
title_short Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
title_full Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
title_fullStr Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
title_full_unstemmed Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
title_sort Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in <i>Pinus taeda</i> seedlings
dc.creator.none.fl_str_mv Faustino, Laura Inés
Moretti, Ana Paula
Graciano, Corina
author Faustino, Laura Inés
author_facet Faustino, Laura Inés
Moretti, Ana Paula
Graciano, Corina
author_role author
author2 Moretti, Ana Paula
Graciano, Corina
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Ciencias Naturales
Allocation
Dry weight
Fertilizer
Hydraulic conductance
Hydraulic conductivity
Nitrogen
topic Ciencias Agrarias
Ciencias Naturales
Allocation
Dry weight
Fertilizer
Hydraulic conductance
Hydraulic conductivity
Nitrogen
dc.description.none.fl_txt_mv Urea fertilization decreases <i>Pinus taeda</i> L. growth in clay soils of subtropical areas. The negative effect of urea is related to changes in some hydraulic traits, similar to those observed in plants growing under drought. The aims of this work were (i) to determine whether different sources of nitrogen applied as fertilizers produce similar changes in growth and hydraulic traits to those observed by urea fertilization and (ii) to analyze the impact of those changes in plant drought tolerance. Plants fertilized with urea, nitrate (NO<SUB>3</SUB><SUP>-</SUP>) or ammonium (NH<SUB>4</SUB><SUP>+</SUP>) were grown well watered or with reduced water supply. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilization reduced plant growth and increased root hydraulic conductance scaled by root dry weight (DW). NH<SUB>4</SUB><SUP>+</SUP> fertilization did not reduce plant growth and increased shoot hydraulic conductance and stem hydraulic conductivity. We conclude that NO<SUB>3</SUB><SUP>-</SUP> is the ion involved in the changes linked to the negative effect of urea fertilization on P. taeda growth. NH<SUB>4</SUB><SUP>+</SUP> fertilization does not change drought susceptibility and it produces changes in shoot hydraulic traits, therefore plants avoid the depressive effect of fertilization. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilizers induce changes in DW and root hydraulic conductance and consequently plants are less affected by drought.
Instituto de Fisiología Vegetal
Facultad de Ciencias Agrarias y Forestales
description Urea fertilization decreases <i>Pinus taeda</i> L. growth in clay soils of subtropical areas. The negative effect of urea is related to changes in some hydraulic traits, similar to those observed in plants growing under drought. The aims of this work were (i) to determine whether different sources of nitrogen applied as fertilizers produce similar changes in growth and hydraulic traits to those observed by urea fertilization and (ii) to analyze the impact of those changes in plant drought tolerance. Plants fertilized with urea, nitrate (NO<SUB>3</SUB><SUP>-</SUP>) or ammonium (NH<SUB>4</SUB><SUP>+</SUP>) were grown well watered or with reduced water supply. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilization reduced plant growth and increased root hydraulic conductance scaled by root dry weight (DW). NH<SUB>4</SUB><SUP>+</SUP> fertilization did not reduce plant growth and increased shoot hydraulic conductance and stem hydraulic conductivity. We conclude that NO<SUB>3</SUB><SUP>-</SUP> is the ion involved in the changes linked to the negative effect of urea fertilization on P. taeda growth. NH<SUB>4</SUB><SUP>+</SUP> fertilization does not change drought susceptibility and it produces changes in shoot hydraulic traits, therefore plants avoid the depressive effect of fertilization. Urea and NO<SUB>3</SUB><SUP>-</SUP> fertilizers induce changes in DW and root hydraulic conductance and consequently plants are less affected by drought.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/86013
url http://sedici.unlp.edu.ar/handle/10915/86013
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0829-318X
info:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/tpv068
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1062-1074
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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