EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/9074 |
Resumo: | The significant economic potential of Swietenia macrophylla has caused immense reductions in the native populations, jeopardizing their survival. Restoring these populations requires the establishment of quality seedling production, which depends on adequate evaluation of the physiological state of seeds. Thus, the aim of this study was to evaluate the effect of temperature and light on seed germination and seedling growth of S. macrophylla. The experimental design was completely randomized, with ten treatments of four replicates of 50 seeds. Treatments consisted of: constant temperatures of 23, 29, 35 and 41 °C, with photoperiods of 24 and 12 h of light, and alternating temperatures of 25–35 °C and 30–40 °C, with 12 h of light. Water content, germination, germination speed index, stem diameter, root length, shoot length, root dry mass and shoot dry mass of seedlings were evaluated. At 41 oC, S. macrophylla seeds failed to germinate. A constant temperature of 29 oC under 24 h of light favors the germination process of seeds and initial seedling growth. |
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EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla KingEFEITO DE TEMPERATURA E LUZ NA GERMINAÇÃO DE SEMENTES E CRESCIMENTO DE PLÂNTULAS DE Swietenia macrophylla KingMogno. Sementes florestais. Fotoperíodo.Mahogany. Forest seeds. Photoperiod.The significant economic potential of Swietenia macrophylla has caused immense reductions in the native populations, jeopardizing their survival. Restoring these populations requires the establishment of quality seedling production, which depends on adequate evaluation of the physiological state of seeds. Thus, the aim of this study was to evaluate the effect of temperature and light on seed germination and seedling growth of S. macrophylla. The experimental design was completely randomized, with ten treatments of four replicates of 50 seeds. Treatments consisted of: constant temperatures of 23, 29, 35 and 41 °C, with photoperiods of 24 and 12 h of light, and alternating temperatures of 25–35 °C and 30–40 °C, with 12 h of light. Water content, germination, germination speed index, stem diameter, root length, shoot length, root dry mass and shoot dry mass of seedlings were evaluated. At 41 oC, S. macrophylla seeds failed to germinate. A constant temperature of 29 oC under 24 h of light favors the germination process of seeds and initial seedling growth. O significativo potencial econômico de Swietenia macrophylla tem causado redução intensa nas populações nativas, colocando em risco sua sobrevivência, exigindo assim, medidas para promover adequada avaliação do estado fisiológico das sementes, visando estabelecimento de um programa de qualidade de produção de mudas. Assim, o objetivo do presente estudo foi avaliar o efeito da temperatura e da luz sobre a germinação de sementes e o crescimento de plântulas de Swietenia macrophylla. O delineamento experimental foi o inteiramente casualizado, com dez tratamentos de quatro réplicas com 50 sementes, e constou de: temperaturas constantes de 23, 29, 35 e 41 °C, com fotoperíodo de 24 e 12 h de luz, e alternadas de 25-35 oC e 30-40 oC, com 12 h de luz. Avaliou-se o teor de água, germinação, índice de velocidade de germinação, diâmetro do coleto, comprimento de raiz e parte aérea, massa seca de raiz e parte aérea de plântulas. Germinação na temperatura de 41 oC é letal para sementes de S. macrophylla. O teste de germinação com temperatura constante de 29 oC sob 24 h de luz favorece o processo germinativo das sementes e o crescimento inicial das plântulas.Universidade Federal Rural do Semi-Árido2020-07-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/907410.1590/1983-21252020v33n316rcREVISTA CAATINGA; Vol. 33 No. 3 (2020); 728-734Revista Caatinga; v. 33 n. 3 (2020); 728-7341983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/9074/10285Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessCarvalho, Cleverson Agueiro deSilva, Josué Bispo daAlves, Charline ZaratinHall, Climbiê FerreiraCotrim, Mayara FáveroTeixeira, Anielle Verzotto2023-07-21T17:05:09Zoai:ojs.periodicos.ufersa.edu.br:article/9074Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:45.623755Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King EFEITO DE TEMPERATURA E LUZ NA GERMINAÇÃO DE SEMENTES E CRESCIMENTO DE PLÂNTULAS DE Swietenia macrophylla King |
title |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
spellingShingle |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King Carvalho, Cleverson Agueiro de Mogno. Sementes florestais. Fotoperíodo. Mahogany. Forest seeds. Photoperiod. |
title_short |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
title_full |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
title_fullStr |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
title_full_unstemmed |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
title_sort |
EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION AND SEEDLING GROWTH OF Swietenia macrophylla King |
author |
Carvalho, Cleverson Agueiro de |
author_facet |
Carvalho, Cleverson Agueiro de Silva, Josué Bispo da Alves, Charline Zaratin Hall, Climbiê Ferreira Cotrim, Mayara Fávero Teixeira, Anielle Verzotto |
author_role |
author |
author2 |
Silva, Josué Bispo da Alves, Charline Zaratin Hall, Climbiê Ferreira Cotrim, Mayara Fávero Teixeira, Anielle Verzotto |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Cleverson Agueiro de Silva, Josué Bispo da Alves, Charline Zaratin Hall, Climbiê Ferreira Cotrim, Mayara Fávero Teixeira, Anielle Verzotto |
dc.subject.por.fl_str_mv |
Mogno. Sementes florestais. Fotoperíodo. Mahogany. Forest seeds. Photoperiod. |
topic |
Mogno. Sementes florestais. Fotoperíodo. Mahogany. Forest seeds. Photoperiod. |
description |
The significant economic potential of Swietenia macrophylla has caused immense reductions in the native populations, jeopardizing their survival. Restoring these populations requires the establishment of quality seedling production, which depends on adequate evaluation of the physiological state of seeds. Thus, the aim of this study was to evaluate the effect of temperature and light on seed germination and seedling growth of S. macrophylla. The experimental design was completely randomized, with ten treatments of four replicates of 50 seeds. Treatments consisted of: constant temperatures of 23, 29, 35 and 41 °C, with photoperiods of 24 and 12 h of light, and alternating temperatures of 25–35 °C and 30–40 °C, with 12 h of light. Water content, germination, germination speed index, stem diameter, root length, shoot length, root dry mass and shoot dry mass of seedlings were evaluated. At 41 oC, S. macrophylla seeds failed to germinate. A constant temperature of 29 oC under 24 h of light favors the germination process of seeds and initial seedling growth. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07-31 |
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.ufersa.edu.br/caatinga/article/view/9074 10.1590/1983-21252020v33n316rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/9074 |
identifier_str_mv |
10.1590/1983-21252020v33n316rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/9074/10285 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 33 No. 3 (2020); 728-734 Revista Caatinga; v. 33 n. 3 (2020); 728-734 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674028367872000 |