Quality of pelleted and bare lettuce seeds at different temperatures
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/29283 |
Resumo: | Two lettuce cultivars (Everglades and Virginia) were used to evaluate the performance of pelleted and bare seeds of lettuce under different germination temperatures. A completely randomized 2 x 2 x 5 factorial design was used. The factors consisted of two cultivars with pelleted and bare seeds, five intervals of germination temperatures (17 to 19ºC, 21 to 23°C, 25 to 28°C, 30 to 32°C, 34 to 38°C), with four replications. The first germination count, T50, germination, germination speed index, emergence, emergence speed index and dry mass of plants were evaluated. Sowing germination test was carried out on two sheets of blotting-paper, moistened with water at a ratio of 2.5 times the paper weight in ‘gerbox’ plastic boxes. The boxes with seeds were kept in a thermogradient table, with alternating light procedure: 12 hours of darkness and 12 hours of light. The temperature was regulated to a gradient according to each treatment. On the 4th day, first germination count and germination test were performed. On the 7th day, germination was evaluated with normal seedlings as a parameter. The cultivar Everglades showed a higher germination, especially with pelleted seeds. The germination performance of the cultivars is influenced by the use of bare or pelleted seeds and by temperature. Better seed quality and early growth of lettuce are observed in temperatures between 17 to 23°C. |
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Quality of pelleted and bare lettuce seeds at different temperaturesEvergladesLactuca sativa L.ThermodormancyThermoinhibitionVirginiaTwo lettuce cultivars (Everglades and Virginia) were used to evaluate the performance of pelleted and bare seeds of lettuce under different germination temperatures. A completely randomized 2 x 2 x 5 factorial design was used. The factors consisted of two cultivars with pelleted and bare seeds, five intervals of germination temperatures (17 to 19ºC, 21 to 23°C, 25 to 28°C, 30 to 32°C, 34 to 38°C), with four replications. The first germination count, T50, germination, germination speed index, emergence, emergence speed index and dry mass of plants were evaluated. Sowing germination test was carried out on two sheets of blotting-paper, moistened with water at a ratio of 2.5 times the paper weight in ‘gerbox’ plastic boxes. The boxes with seeds were kept in a thermogradient table, with alternating light procedure: 12 hours of darkness and 12 hours of light. The temperature was regulated to a gradient according to each treatment. On the 4th day, first germination count and germination test were performed. On the 7th day, germination was evaluated with normal seedlings as a parameter. The cultivar Everglades showed a higher germination, especially with pelleted seeds. The germination performance of the cultivars is influenced by the use of bare or pelleted seeds and by temperature. Better seed quality and early growth of lettuce are observed in temperatures between 17 to 23°C.Southern Cross Publishing Group2018-05-21T16:36:48Z2018-05-21T16:36:48Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfZUFFO, A. M. et al. Quality of pelleted and bare lettuce seeds at different temperatures. Australian Journal of Crop Science, [S.l.], v. 11, n. 3, p. 338-342, 2017.http://repositorio.ufla.br/jspui/handle/1/29283Australian Journal of Crop Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessZuffo, Alan MarioZambiazzi, Everton ViniciusCarvalho, Maria Laene Moreira deOliveira, Natália Trajano deBruzi, Adriano TeodoroSoares, Igor OliveriLima, Jéssica GentilSantos, Heloisa Oliveira doseng2023-05-26T18:42:48Zoai:localhost:1/29283Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:42:48Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Quality of pelleted and bare lettuce seeds at different temperatures |
title |
Quality of pelleted and bare lettuce seeds at different temperatures |
spellingShingle |
Quality of pelleted and bare lettuce seeds at different temperatures Zuffo, Alan Mario Everglades Lactuca sativa L. Thermodormancy Thermoinhibition Virginia |
title_short |
Quality of pelleted and bare lettuce seeds at different temperatures |
title_full |
Quality of pelleted and bare lettuce seeds at different temperatures |
title_fullStr |
Quality of pelleted and bare lettuce seeds at different temperatures |
title_full_unstemmed |
Quality of pelleted and bare lettuce seeds at different temperatures |
title_sort |
Quality of pelleted and bare lettuce seeds at different temperatures |
author |
Zuffo, Alan Mario |
author_facet |
Zuffo, Alan Mario Zambiazzi, Everton Vinicius Carvalho, Maria Laene Moreira de Oliveira, Natália Trajano de Bruzi, Adriano Teodoro Soares, Igor Oliveri Lima, Jéssica Gentil Santos, Heloisa Oliveira dos |
author_role |
author |
author2 |
Zambiazzi, Everton Vinicius Carvalho, Maria Laene Moreira de Oliveira, Natália Trajano de Bruzi, Adriano Teodoro Soares, Igor Oliveri Lima, Jéssica Gentil Santos, Heloisa Oliveira dos |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Zuffo, Alan Mario Zambiazzi, Everton Vinicius Carvalho, Maria Laene Moreira de Oliveira, Natália Trajano de Bruzi, Adriano Teodoro Soares, Igor Oliveri Lima, Jéssica Gentil Santos, Heloisa Oliveira dos |
dc.subject.por.fl_str_mv |
Everglades Lactuca sativa L. Thermodormancy Thermoinhibition Virginia |
topic |
Everglades Lactuca sativa L. Thermodormancy Thermoinhibition Virginia |
description |
Two lettuce cultivars (Everglades and Virginia) were used to evaluate the performance of pelleted and bare seeds of lettuce under different germination temperatures. A completely randomized 2 x 2 x 5 factorial design was used. The factors consisted of two cultivars with pelleted and bare seeds, five intervals of germination temperatures (17 to 19ºC, 21 to 23°C, 25 to 28°C, 30 to 32°C, 34 to 38°C), with four replications. The first germination count, T50, germination, germination speed index, emergence, emergence speed index and dry mass of plants were evaluated. Sowing germination test was carried out on two sheets of blotting-paper, moistened with water at a ratio of 2.5 times the paper weight in ‘gerbox’ plastic boxes. The boxes with seeds were kept in a thermogradient table, with alternating light procedure: 12 hours of darkness and 12 hours of light. The temperature was regulated to a gradient according to each treatment. On the 4th day, first germination count and germination test were performed. On the 7th day, germination was evaluated with normal seedlings as a parameter. The cultivar Everglades showed a higher germination, especially with pelleted seeds. The germination performance of the cultivars is influenced by the use of bare or pelleted seeds and by temperature. Better seed quality and early growth of lettuce are observed in temperatures between 17 to 23°C. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-05-21T16:36:48Z 2018-05-21T16:36:48Z |
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 |
ZUFFO, A. M. et al. Quality of pelleted and bare lettuce seeds at different temperatures. Australian Journal of Crop Science, [S.l.], v. 11, n. 3, p. 338-342, 2017. http://repositorio.ufla.br/jspui/handle/1/29283 |
identifier_str_mv |
ZUFFO, A. M. et al. Quality of pelleted and bare lettuce seeds at different temperatures. Australian Journal of Crop Science, [S.l.], v. 11, n. 3, p. 338-342, 2017. |
url |
http://repositorio.ufla.br/jspui/handle/1/29283 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Southern Cross Publishing Group |
publisher.none.fl_str_mv |
Southern Cross Publishing Group |
dc.source.none.fl_str_mv |
Australian Journal of Crop Science reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1784550215065272320 |