Water and saline stress on initial growth of Toona ciliata var. australis seedlings
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2108 |
Resumo: | The objective of this study was to evaluate the effects of water and salt stress on initial growth of Australian red cedar (Toona ciliata var. australis) seedlings. Saline stress was evaluated in two completely randomized design (CRD) experiments, considering five osmotic potentials (0.0; -0.3; -0.6; -0.9 and -1.2 MPa). For water stress, five ranges of water potential were evaluated, using CRD (0 to -7; -7.1 to -14.0; -14.1 to -21.0; -21.1 to -28.0 and -28.1 to -35.0 kPa). At the end of both experiments the plant height, stem diameter, aerial part dry mass, roots dry mass, total dry mass and seedling survival were evaluated. Saline solutions application reduced all seedlings development variables. Up to the level of -21 kPa of water stress, there was an increase in height and the plant height and the stem diameter ratio. The other variables have been reduced since the first tested level. The tolerance of seedlings to the stresses evaluated allows for the adjustment of management conditions in the nursery before occuring losses and may also indicate a tolerance to these adverse conditions in the field. |
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Water and saline stress on initial growth of Toona ciliata var. australis seedlingsEstresse hídrico e salino no crescimento inicial de mudas de Toona ciliata var. australisAbiotic stressIrrigation waterForest nurseriesEstresse abióticoÁgua de irrigaçãoViveiros florestaisThe objective of this study was to evaluate the effects of water and salt stress on initial growth of Australian red cedar (Toona ciliata var. australis) seedlings. Saline stress was evaluated in two completely randomized design (CRD) experiments, considering five osmotic potentials (0.0; -0.3; -0.6; -0.9 and -1.2 MPa). For water stress, five ranges of water potential were evaluated, using CRD (0 to -7; -7.1 to -14.0; -14.1 to -21.0; -21.1 to -28.0 and -28.1 to -35.0 kPa). At the end of both experiments the plant height, stem diameter, aerial part dry mass, roots dry mass, total dry mass and seedling survival were evaluated. Saline solutions application reduced all seedlings development variables. Up to the level of -21 kPa of water stress, there was an increase in height and the plant height and the stem diameter ratio. The other variables have been reduced since the first tested level. The tolerance of seedlings to the stresses evaluated allows for the adjustment of management conditions in the nursery before occuring losses and may also indicate a tolerance to these adverse conditions in the field.O objetivo deste estudo foi avaliar os efeitos do estresse salino e hídrico no crescimento inicial de mudas de cedro australiano (Toona ciliata var. australis). O estresse salino foi avaliado em dois experimentos, em delineamamento inteiramente casualizado (DIC), testando-se cinco potenciais osmóticos (0,0; -0,3; -0,6; -0,9 e -1,2 MPa). Para o estresse hídrico, foram estabelecidos cinco faixas de tensão hídrica, também em DIC (0 a -7; -7,1 a -14,0; -14,1 a -21,0; -21,1 a -28,0 e -28,1 a -35,0 kPa). Ao final dos experimentos, foram avaliados: altura da parte aérea, diâmetro do coleto, massa seca da parte aérea, das raízes e total e sobrevivência das mudas. O uso de soluções salinas provocou redução de todas as variáveis de crescimento das mudas. Até o nível de -21 kPa de estresse hídrico há aumento de altura e relação entre altura da parte aérea e diâmetro do coleto, sendo as outras variáveis reduzidas a partir do primeiro nível testado. A tolerância das mudas aos estresses avaliados permite o ajuste das condições de manejo no viveiro antes da ocorrência de perdas e pode representar também uma tolerância a essas condições adversas em campo.Embrapa Florestas2023-02-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/octet-streamhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/210810.4336/2023.pfb.43e202002108Pesquisa Florestal Brasileira; v. 43 (2023)Pesquisa Florestal Brasileira; Vol. 43 (2023)1983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2108/1687Copyright (c) 2023 Larissa Campos de Sá, Marília Lazarotto, Eduarda Demari Avrella, Márcio Alberto Hilgert, Claudimar Sidnei Fiorhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessCampos de Sá, LarissaLazarotto, MaríliaAvrella, Eduarda Demari Hilgert, Márcio AlbertoFior, Claudimar Sidnei2023-03-16T12:47:49Zoai:pfb.cnpf.embrapa.br/pfb:article/2108Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2023-03-16T12:47:49Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings Estresse hídrico e salino no crescimento inicial de mudas de Toona ciliata var. australis |
title |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
spellingShingle |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings Campos de Sá, Larissa Abiotic stress Irrigation water Forest nurseries Estresse abiótico Água de irrigação Viveiros florestais |
title_short |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
title_full |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
title_fullStr |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
title_full_unstemmed |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
title_sort |
Water and saline stress on initial growth of Toona ciliata var. australis seedlings |
author |
Campos de Sá, Larissa |
author_facet |
Campos de Sá, Larissa Lazarotto, Marília Avrella, Eduarda Demari Hilgert, Márcio Alberto Fior, Claudimar Sidnei |
author_role |
author |
author2 |
Lazarotto, Marília Avrella, Eduarda Demari Hilgert, Márcio Alberto Fior, Claudimar Sidnei |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Campos de Sá, Larissa Lazarotto, Marília Avrella, Eduarda Demari Hilgert, Márcio Alberto Fior, Claudimar Sidnei |
dc.subject.por.fl_str_mv |
Abiotic stress Irrigation water Forest nurseries Estresse abiótico Água de irrigação Viveiros florestais |
topic |
Abiotic stress Irrigation water Forest nurseries Estresse abiótico Água de irrigação Viveiros florestais |
description |
The objective of this study was to evaluate the effects of water and salt stress on initial growth of Australian red cedar (Toona ciliata var. australis) seedlings. Saline stress was evaluated in two completely randomized design (CRD) experiments, considering five osmotic potentials (0.0; -0.3; -0.6; -0.9 and -1.2 MPa). For water stress, five ranges of water potential were evaluated, using CRD (0 to -7; -7.1 to -14.0; -14.1 to -21.0; -21.1 to -28.0 and -28.1 to -35.0 kPa). At the end of both experiments the plant height, stem diameter, aerial part dry mass, roots dry mass, total dry mass and seedling survival were evaluated. Saline solutions application reduced all seedlings development variables. Up to the level of -21 kPa of water stress, there was an increase in height and the plant height and the stem diameter ratio. The other variables have been reduced since the first tested level. The tolerance of seedlings to the stresses evaluated allows for the adjustment of management conditions in the nursery before occuring losses and may also indicate a tolerance to these adverse conditions in the field. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-02-28 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2108 10.4336/2023.pfb.43e202002108 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2108 |
identifier_str_mv |
10.4336/2023.pfb.43e202002108 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2108/1687 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/octet-stream |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; v. 43 (2023) Pesquisa Florestal Brasileira; Vol. 43 (2023) 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
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1783370931769442304 |