Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/227519 |
Resumo: | The aim of this work was to study the physiological responses of three contrasting cultivars of sugar cane subject to water stress and rewatering, The experiment was carried out in a greenhouse, where the cultivars SP83-2847, SP80-1842 and SP81-3250 were grown in pots. The first assessment was done after 85 days of planting, then two treatments were implemented, i.e. without water stress (-D) and with water stress (+D) by withholding water for 15 days and rewatering imposed for 12 days after the stress period. Cultivars SP81-3250 and SP80-1842 showed a higher decline in the Fv/Fm ratio, leaf relative water content (RWC), leaf water potential (Ψw), SPAD index and photosynthetic pigments due to water deficit. Drought caused less damage in the physiology of the variety SP83-2847, and it still showed rapid recovery during rewatering, including for the stomatal conductance (gs), so this variety had better adaptation under this condition. The traits Fv/Fm, Ψw, RWC, SPAD index and photosynthetic pigments present as potential physiological indicators in order to select tolerant sugar cane cultivars to water deficit. The trait gs is more effective in differentiating the tolerant cultivars during rewatering. |
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Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidrataçãoPhysiological responses of sugarcane cultivars submitted to water stress and rewateringDroughtFluorescencePhotosynthetic pigmentsSaccharum sppStomatal conductanceToleranceThe aim of this work was to study the physiological responses of three contrasting cultivars of sugar cane subject to water stress and rewatering, The experiment was carried out in a greenhouse, where the cultivars SP83-2847, SP80-1842 and SP81-3250 were grown in pots. The first assessment was done after 85 days of planting, then two treatments were implemented, i.e. without water stress (-D) and with water stress (+D) by withholding water for 15 days and rewatering imposed for 12 days after the stress period. Cultivars SP81-3250 and SP80-1842 showed a higher decline in the Fv/Fm ratio, leaf relative water content (RWC), leaf water potential (Ψw), SPAD index and photosynthetic pigments due to water deficit. Drought caused less damage in the physiology of the variety SP83-2847, and it still showed rapid recovery during rewatering, including for the stomatal conductance (gs), so this variety had better adaptation under this condition. The traits Fv/Fm, Ψw, RWC, SPAD index and photosynthetic pigments present as potential physiological indicators in order to select tolerant sugar cane cultivars to water deficit. The trait gs is more effective in differentiating the tolerant cultivars during rewatering.Universidade Estadual Paulista (UNESP) Departamento de Produção e Melhoramento Vegetal, Caixa Postal 237, CEP 18603-970, Botucatu-SPUniversidade Estadual Paulista (UNESP) Departamento de Produção e Melhoramento Vegetal, Caixa Postal 237, CEP 18603-970, Botucatu-SPUniversidade Estadual Paulista (UNESP)Silva, Marcelo de Almeida [UNESP]dos Santos, Claudiana Moura [UNESP]Arantes, Marcel Tomás [UNESP]Brunelli, Marcela Cristina [UNESP]de Holanda, Lucas Almeida [UNESP]2022-04-29T07:13:45Z2022-04-29T07:13:45Z2013-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article28-35Revista Caatinga, v. 26, n. 3, p. 28-35, 2013.0100-316X1983-2125http://hdl.handle.net/11449/2275192-s2.0-84893128758Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporRevista Caatingainfo:eu-repo/semantics/openAccess2024-04-30T15:57:14Zoai:repositorio.unesp.br:11449/227519Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T15:57:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação Physiological responses of sugarcane cultivars submitted to water stress and rewatering |
title |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
spellingShingle |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação Silva, Marcelo de Almeida [UNESP] Drought Fluorescence Photosynthetic pigments Saccharum spp Stomatal conductance Tolerance |
title_short |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
title_full |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
title_fullStr |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
title_full_unstemmed |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
title_sort |
Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação |
author |
Silva, Marcelo de Almeida [UNESP] |
author_facet |
Silva, Marcelo de Almeida [UNESP] dos Santos, Claudiana Moura [UNESP] Arantes, Marcel Tomás [UNESP] Brunelli, Marcela Cristina [UNESP] de Holanda, Lucas Almeida [UNESP] |
author_role |
author |
author2 |
dos Santos, Claudiana Moura [UNESP] Arantes, Marcel Tomás [UNESP] Brunelli, Marcela Cristina [UNESP] de Holanda, Lucas Almeida [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Silva, Marcelo de Almeida [UNESP] dos Santos, Claudiana Moura [UNESP] Arantes, Marcel Tomás [UNESP] Brunelli, Marcela Cristina [UNESP] de Holanda, Lucas Almeida [UNESP] |
dc.subject.por.fl_str_mv |
Drought Fluorescence Photosynthetic pigments Saccharum spp Stomatal conductance Tolerance |
topic |
Drought Fluorescence Photosynthetic pigments Saccharum spp Stomatal conductance Tolerance |
description |
The aim of this work was to study the physiological responses of three contrasting cultivars of sugar cane subject to water stress and rewatering, The experiment was carried out in a greenhouse, where the cultivars SP83-2847, SP80-1842 and SP81-3250 were grown in pots. The first assessment was done after 85 days of planting, then two treatments were implemented, i.e. without water stress (-D) and with water stress (+D) by withholding water for 15 days and rewatering imposed for 12 days after the stress period. Cultivars SP81-3250 and SP80-1842 showed a higher decline in the Fv/Fm ratio, leaf relative water content (RWC), leaf water potential (Ψw), SPAD index and photosynthetic pigments due to water deficit. Drought caused less damage in the physiology of the variety SP83-2847, and it still showed rapid recovery during rewatering, including for the stomatal conductance (gs), so this variety had better adaptation under this condition. The traits Fv/Fm, Ψw, RWC, SPAD index and photosynthetic pigments present as potential physiological indicators in order to select tolerant sugar cane cultivars to water deficit. The trait gs is more effective in differentiating the tolerant cultivars during rewatering. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-01 2022-04-29T07:13:45Z 2022-04-29T07:13:45Z |
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 |
Revista Caatinga, v. 26, n. 3, p. 28-35, 2013. 0100-316X 1983-2125 http://hdl.handle.net/11449/227519 2-s2.0-84893128758 |
identifier_str_mv |
Revista Caatinga, v. 26, n. 3, p. 28-35, 2013. 0100-316X 1983-2125 2-s2.0-84893128758 |
url |
http://hdl.handle.net/11449/227519 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Revista Caatinga |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
28-35 |
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 |
|
_version_ |
1799965130305306624 |