Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e70268 |
Resumo: | Eucalyptus urophylla S. T. Blake is one of the main eucalyptus species cultivated. However, there are no recommendations for testing its germination pattern. Thus, the objective of this work was to determine the best methodology to conduct seed germination tests for E. urophylla. The study was divided into two steps. In the first, two substrates (on paper and sand) and six temperatures (15, 20, 25, 30, 35ºC, and alternating 20-30ºC, between night and day, respectively) were tested. In the second step, the best substrate was selected based on the first experiment and was tested in two seeds lots and at the six temperatures previously mentioned. Germination, first count, speed index and the average germination time were evaluated. The experiment was in a completely randomized design with four replications and the treatments were arranged in a 2x6 factorial scheme for both steps. When comparing germination between lots, it was observed that lot 1 had a lower performance than lot 2 under extreme temperature conditions. Seed germination tests of E. urophylla should be made at 30 or 35ºC on the paper or sand substrate, with the initial and final counts at four and 10 days after sowing, respectively. Based on this study, more tests should be made with seeds from other lots and populations of E. urophylla to confirm the results. |
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Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae)Determinação da metodologia para o teste de germinação de sementes de Eucalyptus urophylla S. T. Blake (Myrtaceae)Eucalyptus urophylla S. T. Blake is one of the main eucalyptus species cultivated. However, there are no recommendations for testing its germination pattern. Thus, the objective of this work was to determine the best methodology to conduct seed germination tests for E. urophylla. The study was divided into two steps. In the first, two substrates (on paper and sand) and six temperatures (15, 20, 25, 30, 35ºC, and alternating 20-30ºC, between night and day, respectively) were tested. In the second step, the best substrate was selected based on the first experiment and was tested in two seeds lots and at the six temperatures previously mentioned. Germination, first count, speed index and the average germination time were evaluated. The experiment was in a completely randomized design with four replications and the treatments were arranged in a 2x6 factorial scheme for both steps. When comparing germination between lots, it was observed that lot 1 had a lower performance than lot 2 under extreme temperature conditions. Seed germination tests of E. urophylla should be made at 30 or 35ºC on the paper or sand substrate, with the initial and final counts at four and 10 days after sowing, respectively. Based on this study, more tests should be made with seeds from other lots and populations of E. urophylla to confirm the results.Eucalyptus urophylla S. T. Blake é uma das principais espécies de eucaliptos cultivadas. Entretanto, não existem recomendações para o teste padrão de germinação de E. urophylla. Assim, o objetivo foi determinar a melhor metodologia para a condução do teste de germinação de sementes de E. urophylla. O experimento foi dividido em duas etapas. Na primeira, foram testados dois substratos (sobre papel mata-borrão e areia) e seis temperaturas (constantes de 15, 20, 25, 30, 35ºC e alternada de 20-30ºC, entre noite e dia, respectivamente) na condução do teste de germinação. Na segunda etapa, foi selecionado o substrato mais indicado no experimento anterior e testado em dois lotes, nas seis temperaturas citadas anteriormente. Foram avaliadas a germinação, primeira contagem, índice de velocidade e tempo médio de germinação. O experimento foi realizado em delineamento inteiramente casualizado com quatro repetições e os tratamentos foram dispostos em esquema fatorial de 2 x 6 para ambas as etapas. Na comparação da germinação entre os lotes, observou-se que o lote 1 apresentou menor desempenho do que o lote 2 nas condições de temperaturas extremas. O teste de germinação de sementes de E. urophylla deve ser realizado a 30 ou 35°C com semeadura sobre papel ou areia, e com contagem inicial e final aos quatro e 10 dias após a semeadura, respectivamente. Com base nesta pesquisa, mais testes podem ser realizados, para outros lotes e sementes de E. urophylla de outras procedências, para garantir a confirmação dos resultados.Universidade Federal de Santa Catarina2020-05-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e7026810.5007/2175-7925.2020.e70268Biotemas; v. 33 n. 2 (2020); 1-82175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e70268/43385Copyright (c) 2020 TATIANE SANCHES JEROMINI, THAIS ARROYO DA CRUZ, THAÍS SOARES PEREIRA, GIVANILDO ZILDO DA SILVA, CIBELE CHALITA MARTINSinfo:eu-repo/semantics/openAccessJeromini, Tatiane SanchesCruz, Thais Arroyo daPereira, Thaís SoaresSilva, Givanildo Zildo daMartins, Cibele Chalita2020-05-25T16:46:14Zoai:periodicos.ufsc.br:article/70268Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2020-05-25T16:46:14Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) Determinação da metodologia para o teste de germinação de sementes de Eucalyptus urophylla S. T. Blake (Myrtaceae) |
title |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
spellingShingle |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) Jeromini, Tatiane Sanches |
title_short |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
title_full |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
title_fullStr |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
title_full_unstemmed |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
title_sort |
Determining the methodology for testing seed germination of Eucalyptus urophylla S. T. Blake (Myrtaceae) |
author |
Jeromini, Tatiane Sanches |
author_facet |
Jeromini, Tatiane Sanches Cruz, Thais Arroyo da Pereira, Thaís Soares Silva, Givanildo Zildo da Martins, Cibele Chalita |
author_role |
author |
author2 |
Cruz, Thais Arroyo da Pereira, Thaís Soares Silva, Givanildo Zildo da Martins, Cibele Chalita |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Jeromini, Tatiane Sanches Cruz, Thais Arroyo da Pereira, Thaís Soares Silva, Givanildo Zildo da Martins, Cibele Chalita |
description |
Eucalyptus urophylla S. T. Blake is one of the main eucalyptus species cultivated. However, there are no recommendations for testing its germination pattern. Thus, the objective of this work was to determine the best methodology to conduct seed germination tests for E. urophylla. The study was divided into two steps. In the first, two substrates (on paper and sand) and six temperatures (15, 20, 25, 30, 35ºC, and alternating 20-30ºC, between night and day, respectively) were tested. In the second step, the best substrate was selected based on the first experiment and was tested in two seeds lots and at the six temperatures previously mentioned. Germination, first count, speed index and the average germination time were evaluated. The experiment was in a completely randomized design with four replications and the treatments were arranged in a 2x6 factorial scheme for both steps. When comparing germination between lots, it was observed that lot 1 had a lower performance than lot 2 under extreme temperature conditions. Seed germination tests of E. urophylla should be made at 30 or 35ºC on the paper or sand substrate, with the initial and final counts at four and 10 days after sowing, respectively. Based on this study, more tests should be made with seeds from other lots and populations of E. urophylla to confirm the results. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-25 |
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.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e70268 10.5007/2175-7925.2020.e70268 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e70268 |
identifier_str_mv |
10.5007/2175-7925.2020.e70268 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2020.e70268/43385 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 33 n. 2 (2020); 1-8 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940554519216128 |