Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area
- Autores
- Faustino, Laura Inés; Bulfe, Nardia M. L.; Pinazo, Martín; Monteoliva, Silvia Estela; Graciano, Corina
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Plants of Pinus taeda L. from each of four families were fertilized with N, P or N+P at planting. The H family had the highest growth in dry mass while the L family had the lowest growth. Measurements of plant hydraulic architecture traits were performed during the first year after planting. Stomatal conductance (gs), water potential at predawn (Ψpredawn) and at midday (Ψmidday), branch hydraulic conductivity (ks and kl) and shoot hydraulic conductance (K) were measured. One year after planting, dry weight partitioning of all aboveground organs was performed. P fertilization increased growth in all four families, while N fertilization had a negative effect on growth. L family plants were more negatively affected than H family plants. This negative effect was not due to limitations in N or P uptake because plants from all the families and treatments had the same N and P concentration in the needles. P fertilization changed some hydraulic parameters, but those changes did not affect growth. However, the negative effect of N can be explained by changes in hydraulic traits. L family plants had a high leaf dry weight per branch, which was increased by N fertilization. This change occurred together with a decrease in shoot conductance. Therefore, the reduction in gs was not enough to avoid the drop in Ψmidday. Consequently, stomatal closure and the deficient water status of the needles resulted in a reduction in growth. In H family plants, the increase in number of needles per branch due to N fertilization was counteracted by a reduction in gs and also by a reduction in tracheid lumen size and length. Because of these two changes, Ψmidday did not drop and water availability in the needles was adequate for sustained growth. In conclusion, fertilization affects the hydraulic architecture of plants, and different families develop different strategies. Some of the hydraulic changes can explain the negative effect of N fertilization on growth.
Instituto de Fisiología Vegetal (INFIVE) - Materia
-
Ciencias Agrarias
nutrients
genetic variability
stomatal conductance
hydraulic conductivity
leaf water potential
xylem anatomy
Árboles - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/65722
Ver los metadatos del registro completo
id |
SEDICI_71fbdfb08062bcbc5b5635c72855cf71 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/65722 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical areaFaustino, Laura InésBulfe, Nardia M. L.Pinazo, MartínMonteoliva, Silvia EstelaGraciano, CorinaCiencias Agrariasnutrientsgenetic variabilitystomatal conductancehydraulic conductivityleaf water potentialxylem anatomyÁrbolesPlants of Pinus taeda L. from each of four families were fertilized with N, P or N+P at planting. The H family had the highest growth in dry mass while the L family had the lowest growth. Measurements of plant hydraulic architecture traits were performed during the first year after planting. Stomatal conductance (gs), water potential at predawn (Ψpredawn) and at midday (Ψmidday), branch hydraulic conductivity (ks and kl) and shoot hydraulic conductance (K) were measured. One year after planting, dry weight partitioning of all aboveground organs was performed. P fertilization increased growth in all four families, while N fertilization had a negative effect on growth. L family plants were more negatively affected than H family plants. This negative effect was not due to limitations in N or P uptake because plants from all the families and treatments had the same N and P concentration in the needles. P fertilization changed some hydraulic parameters, but those changes did not affect growth. However, the negative effect of N can be explained by changes in hydraulic traits. L family plants had a high leaf dry weight per branch, which was increased by N fertilization. This change occurred together with a decrease in shoot conductance. Therefore, the reduction in gs was not enough to avoid the drop in Ψmidday. Consequently, stomatal closure and the deficient water status of the needles resulted in a reduction in growth. In H family plants, the increase in number of needles per branch due to N fertilization was counteracted by a reduction in gs and also by a reduction in tracheid lumen size and length. Because of these two changes, Ψmidday did not drop and water availability in the needles was adequate for sustained growth. In conclusion, fertilization affects the hydraulic architecture of plants, and different families develop different strategies. Some of the hydraulic changes can explain the negative effect of N fertilization on growth.Instituto de Fisiología Vegetal (INFIVE)2013-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf241-251http://sedici.unlp.edu.ar/handle/10915/65722enginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/article/33/3/241/1643651info:eu-repo/semantics/altIdentifier/issn/1758-4469info:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/tps129info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:09:39Zoai:sedici.unlp.edu.ar:10915/65722Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:09:40.249SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
title |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
spellingShingle |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area Faustino, Laura Inés Ciencias Agrarias nutrients genetic variability stomatal conductance hydraulic conductivity leaf water potential xylem anatomy Árboles |
title_short |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
title_full |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
title_fullStr |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
title_full_unstemmed |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
title_sort |
Dry weight partitioning and hydraulic traits in young <i>Pinus taeda</i> trees fertilized with nitrogen and phosphorus in a subtropical area |
dc.creator.none.fl_str_mv |
Faustino, Laura Inés Bulfe, Nardia M. L. Pinazo, Martín Monteoliva, Silvia Estela Graciano, Corina |
author |
Faustino, Laura Inés |
author_facet |
Faustino, Laura Inés Bulfe, Nardia M. L. Pinazo, Martín Monteoliva, Silvia Estela Graciano, Corina |
author_role |
author |
author2 |
Bulfe, Nardia M. L. Pinazo, Martín Monteoliva, Silvia Estela Graciano, Corina |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Agrarias nutrients genetic variability stomatal conductance hydraulic conductivity leaf water potential xylem anatomy Árboles |
topic |
Ciencias Agrarias nutrients genetic variability stomatal conductance hydraulic conductivity leaf water potential xylem anatomy Árboles |
dc.description.none.fl_txt_mv |
Plants of Pinus taeda L. from each of four families were fertilized with N, P or N+P at planting. The H family had the highest growth in dry mass while the L family had the lowest growth. Measurements of plant hydraulic architecture traits were performed during the first year after planting. Stomatal conductance (gs), water potential at predawn (Ψpredawn) and at midday (Ψmidday), branch hydraulic conductivity (ks and kl) and shoot hydraulic conductance (K) were measured. One year after planting, dry weight partitioning of all aboveground organs was performed. P fertilization increased growth in all four families, while N fertilization had a negative effect on growth. L family plants were more negatively affected than H family plants. This negative effect was not due to limitations in N or P uptake because plants from all the families and treatments had the same N and P concentration in the needles. P fertilization changed some hydraulic parameters, but those changes did not affect growth. However, the negative effect of N can be explained by changes in hydraulic traits. L family plants had a high leaf dry weight per branch, which was increased by N fertilization. This change occurred together with a decrease in shoot conductance. Therefore, the reduction in gs was not enough to avoid the drop in Ψmidday. Consequently, stomatal closure and the deficient water status of the needles resulted in a reduction in growth. In H family plants, the increase in number of needles per branch due to N fertilization was counteracted by a reduction in gs and also by a reduction in tracheid lumen size and length. Because of these two changes, Ψmidday did not drop and water availability in the needles was adequate for sustained growth. In conclusion, fertilization affects the hydraulic architecture of plants, and different families develop different strategies. Some of the hydraulic changes can explain the negative effect of N fertilization on growth. Instituto de Fisiología Vegetal (INFIVE) |
description |
Plants of Pinus taeda L. from each of four families were fertilized with N, P or N+P at planting. The H family had the highest growth in dry mass while the L family had the lowest growth. Measurements of plant hydraulic architecture traits were performed during the first year after planting. Stomatal conductance (gs), water potential at predawn (Ψpredawn) and at midday (Ψmidday), branch hydraulic conductivity (ks and kl) and shoot hydraulic conductance (K) were measured. One year after planting, dry weight partitioning of all aboveground organs was performed. P fertilization increased growth in all four families, while N fertilization had a negative effect on growth. L family plants were more negatively affected than H family plants. This negative effect was not due to limitations in N or P uptake because plants from all the families and treatments had the same N and P concentration in the needles. P fertilization changed some hydraulic parameters, but those changes did not affect growth. However, the negative effect of N can be explained by changes in hydraulic traits. L family plants had a high leaf dry weight per branch, which was increased by N fertilization. This change occurred together with a decrease in shoot conductance. Therefore, the reduction in gs was not enough to avoid the drop in Ψmidday. Consequently, stomatal closure and the deficient water status of the needles resulted in a reduction in growth. In H family plants, the increase in number of needles per branch due to N fertilization was counteracted by a reduction in gs and also by a reduction in tracheid lumen size and length. Because of these two changes, Ψmidday did not drop and water availability in the needles was adequate for sustained growth. In conclusion, fertilization affects the hydraulic architecture of plants, and different families develop different strategies. Some of the hydraulic changes can explain the negative effect of N fertilization on growth. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02-25 |
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/10915/65722 |
url |
http://sedici.unlp.edu.ar/handle/10915/65722 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/article/33/3/241/1643651 info:eu-repo/semantics/altIdentifier/issn/1758-4469 info:eu-repo/semantics/altIdentifier/doi/10.1093/treephys/tps129 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
dc.format.none.fl_str_mv |
application/pdf 241-251 |
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 |
_version_ |
1844615964886302720 |
score |
13.070432 |