Morphophisiolophical characteristics of hardened woody species under water restriction
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/41670 |
Resumo: | The application of methyl jasmonate and mechanical stimuli seem to modulate morphological characteristics that are to ensure survival under adverse environmental conditions. The study aimed to evaluate morphological characteristics of woody species rustified with methyl jasmonate and stem bending under water restriction. Seedlings of Inga sessilis and Nectandra grandiflora were hardened with pulverization of 50 μmol L-1 of methyl jasmonato, 20 stem bending daily and the control treatment for eight weeks. Afterwards, they were transplanted in vessels containing sand and submitted to water restriction for a month, being evaluated biweekly parameters such as increments of height (IH), diameter (IDC), leaf area (AF), leaf dry mass (MSF), stem dry mass (MSC) and root dry mass (MSR), root regeneration potential (PRR), electrolytes at the root (PER). The design was completely randomized with seven replicates of three seedlings each. In N. grandiflora, stem bending showed lower root emission, and when submitted to water restriction reduced AF, MSF and IH, until the end of the evaluated period. For I. sessilis, at time 0 and at day 15, the stem bending expressed lower MSF in relation to jasmonate, however, both did not differ from the control. At 15th the smaller AF was observed in the seedlings treated with stem bending, as well as the lower PER tissue. At the 30th day, both hardening treatments showed lower AF and MSF, and the jasmonato showed lower MSC and MSR in relation to the control treatment. Thus, the mechanical method is not recommended for hardening of Nectandra grandiflora, and both methods, chemical – with methyl jasmonato – and the mechanic – through stem bending – did not present satisfactory results that justify its use to hardening of seedlings of Inga sessilis. |
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Morphophisiolophical characteristics of hardened woody species under water restrictionCaracterísticas morfofisiolóficas de espécies lenhosas rustificadas sob restrição hídricaestímulo mecânicogitorreguladorrustificação de mudas.Mechanical stimuliPhytoregulatorHardening of seedlingThe application of methyl jasmonate and mechanical stimuli seem to modulate morphological characteristics that are to ensure survival under adverse environmental conditions. The study aimed to evaluate morphological characteristics of woody species rustified with methyl jasmonate and stem bending under water restriction. Seedlings of Inga sessilis and Nectandra grandiflora were hardened with pulverization of 50 μmol L-1 of methyl jasmonato, 20 stem bending daily and the control treatment for eight weeks. Afterwards, they were transplanted in vessels containing sand and submitted to water restriction for a month, being evaluated biweekly parameters such as increments of height (IH), diameter (IDC), leaf area (AF), leaf dry mass (MSF), stem dry mass (MSC) and root dry mass (MSR), root regeneration potential (PRR), electrolytes at the root (PER). The design was completely randomized with seven replicates of three seedlings each. In N. grandiflora, stem bending showed lower root emission, and when submitted to water restriction reduced AF, MSF and IH, until the end of the evaluated period. For I. sessilis, at time 0 and at day 15, the stem bending expressed lower MSF in relation to jasmonate, however, both did not differ from the control. At 15th the smaller AF was observed in the seedlings treated with stem bending, as well as the lower PER tissue. At the 30th day, both hardening treatments showed lower AF and MSF, and the jasmonato showed lower MSC and MSR in relation to the control treatment. Thus, the mechanical method is not recommended for hardening of Nectandra grandiflora, and both methods, chemical – with methyl jasmonato – and the mechanic – through stem bending – did not present satisfactory results that justify its use to hardening of seedlings of Inga sessilis.A aplicação de metil jasmonato e estímulos mecânicos parecem modular aspectos morfológicos que asseguram a sobrevivência de mudas de espécies lenhosas sob condições ambientais adversas. O estudo objetivou avaliar características morfofisiológicas de espécies lenhosas rustificadas com metil jasmonato e flexões caulinares sob restrição hídrica. Mudas de Nectandra grandiflora e Inga sessilis foram submetidas à rustificação com 50 μmol.L-1 de metil jasmonato, 20 flexões diárias e o tratamento controle, durante oito semanas. Em seguida, foram transplantadas em vasos contendo areia e submetidas à restrição hídrica durante um mês, sendo avaliadas quinzenalmente atributos, como incremento em altura de planta (IH) e diâmetro do coleto (IDC), área foliar (AF), massa seca do caule (MSC), raiz (MSR) e folhas (MSF), potencial de regeneração de raízes (PRR) e perda de eletrólitos de raíz (PER). O delineamento utilizado foi inteiramente ao acaso, com três tratamentos e sete repetições de três mudas cada. Em N. grandiflora, as flexões caulinares externaram menor emissão de raízes, e quando submetidas à restrição hídrica, reduziram-se AF, MSF e IH, até o final do período avaliado. Para I. sessilis, no tempo 0 e ao 15º dia, as flexões caulinares externaram menor MSF em relação ao metil jasmonato, no entanto, ambos não diferiram do controle. Ao 15º dia, a menor AF foi observada nas mudas tratadas com flexões caulinares, bem como a menor PER. Ao 30º dia, ambos tratamentos rustificativos demonstram menor AF e MSF, e o metil jasmonato externou menor MSC e MSR em relação ao tratamento controle. Assim, o método mecânico não é recomendado para rustificação de mudas de Nectandra grandiflora, e ambos os métodos, químico – com metil jasmonato – e o mecânico – mediante flexões caulinares – não apresentaram resultados satisfatórios que justifiquem a sua utilização para rustificação de mudas de Inga sessilis.Universidade Federal de Santa Maria2022-11-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/xmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/4167010.5902/1980509841670Ciência Florestal; Vol. 32 No. 4 (2022); 1790-1806Ciência Florestal; v. 32 n. 4 (2022); 1790-18061980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/41670/49457https://periodicos.ufsm.br/cienciaflorestal/article/view/41670/52385Copyright (c) 2022 Ciência Florestalhttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessBraz, HannahRistau, Ana Carolina PinguelliVera Cruz, Maria Soraia FortadoVitto, Deise CadorinMalavasi, Ubirajara ControMalavasi, Marlene de Matos2023-04-12T17:41:34Zoai:ojs.pkp.sfu.ca:article/41670Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2023-04-12T17:41:34Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Morphophisiolophical characteristics of hardened woody species under water restriction Características morfofisiolóficas de espécies lenhosas rustificadas sob restrição hídrica |
title |
Morphophisiolophical characteristics of hardened woody species under water restriction |
spellingShingle |
Morphophisiolophical characteristics of hardened woody species under water restriction Braz, Hannah estímulo mecânico gitorregulador rustificação de mudas. Mechanical stimuli Phytoregulator Hardening of seedling |
title_short |
Morphophisiolophical characteristics of hardened woody species under water restriction |
title_full |
Morphophisiolophical characteristics of hardened woody species under water restriction |
title_fullStr |
Morphophisiolophical characteristics of hardened woody species under water restriction |
title_full_unstemmed |
Morphophisiolophical characteristics of hardened woody species under water restriction |
title_sort |
Morphophisiolophical characteristics of hardened woody species under water restriction |
author |
Braz, Hannah |
author_facet |
Braz, Hannah Ristau, Ana Carolina Pinguelli Vera Cruz, Maria Soraia Fortado Vitto, Deise Cadorin Malavasi, Ubirajara Contro Malavasi, Marlene de Matos |
author_role |
author |
author2 |
Ristau, Ana Carolina Pinguelli Vera Cruz, Maria Soraia Fortado Vitto, Deise Cadorin Malavasi, Ubirajara Contro Malavasi, Marlene de Matos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Braz, Hannah Ristau, Ana Carolina Pinguelli Vera Cruz, Maria Soraia Fortado Vitto, Deise Cadorin Malavasi, Ubirajara Contro Malavasi, Marlene de Matos |
dc.subject.por.fl_str_mv |
estímulo mecânico gitorregulador rustificação de mudas. Mechanical stimuli Phytoregulator Hardening of seedling |
topic |
estímulo mecânico gitorregulador rustificação de mudas. Mechanical stimuli Phytoregulator Hardening of seedling |
description |
The application of methyl jasmonate and mechanical stimuli seem to modulate morphological characteristics that are to ensure survival under adverse environmental conditions. The study aimed to evaluate morphological characteristics of woody species rustified with methyl jasmonate and stem bending under water restriction. Seedlings of Inga sessilis and Nectandra grandiflora were hardened with pulverization of 50 μmol L-1 of methyl jasmonato, 20 stem bending daily and the control treatment for eight weeks. Afterwards, they were transplanted in vessels containing sand and submitted to water restriction for a month, being evaluated biweekly parameters such as increments of height (IH), diameter (IDC), leaf area (AF), leaf dry mass (MSF), stem dry mass (MSC) and root dry mass (MSR), root regeneration potential (PRR), electrolytes at the root (PER). The design was completely randomized with seven replicates of three seedlings each. In N. grandiflora, stem bending showed lower root emission, and when submitted to water restriction reduced AF, MSF and IH, until the end of the evaluated period. For I. sessilis, at time 0 and at day 15, the stem bending expressed lower MSF in relation to jasmonate, however, both did not differ from the control. At 15th the smaller AF was observed in the seedlings treated with stem bending, as well as the lower PER tissue. At the 30th day, both hardening treatments showed lower AF and MSF, and the jasmonato showed lower MSC and MSR in relation to the control treatment. Thus, the mechanical method is not recommended for hardening of Nectandra grandiflora, and both methods, chemical – with methyl jasmonato – and the mechanic – through stem bending – did not present satisfactory results that justify its use to hardening of seedlings of Inga sessilis. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-23 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/41670 10.5902/1980509841670 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/41670 |
identifier_str_mv |
10.5902/1980509841670 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/41670/49457 https://periodicos.ufsm.br/cienciaflorestal/article/view/41670/52385 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/xml |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 32 No. 4 (2022); 1790-1806 Ciência Florestal; v. 32 n. 4 (2022); 1790-1806 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944135241629696 |