Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1501 |
Resumo: | This study aimed to assess the physiological quality of Parapiptadenia rigida (Benth.) Brenan seed weight classes subjected to accelerated aging under laboratory and greenhouse conditions. A lot of P. rigida seeds was split in three seed weight classes (thousand seed weight): TSW1 (original lot; control, 19.23 g), TSW2 (25.45 g) and TSW3 (13.58 g), which were subjected to three accelerated aging times (0, 24 and 48 h). First count, weak and strong normal seedlings, percentage of accumulated germination, percentage of death seed, electrical conductivity, fresh and dry weight and shoot length were assessed in laboratory. Seedling emergence, emergence velocity and emergence velocity index were assessed in greenhouse. P. rigida seeds showing higher weight displayed higher percentage of germination and average vigor characteristics. Seeds with higher weight indicated high tolerance to accelerated aging conditions and produced more vigorous plants. Therefore, we suggest that seed lots of P. rigida should be composed considering TSW classes. |
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Weight is a key factor in the physiological quality of Parapiptadenia rigida seedsMassa é fator determinante na qualidade fisiológica de sementes de Parapiptadenia rigidaEnvelhecimento aceleradoGerminaçãoTamanho de sementeAccelerated agingGerminationSeed sizeThis study aimed to assess the physiological quality of Parapiptadenia rigida (Benth.) Brenan seed weight classes subjected to accelerated aging under laboratory and greenhouse conditions. A lot of P. rigida seeds was split in three seed weight classes (thousand seed weight): TSW1 (original lot; control, 19.23 g), TSW2 (25.45 g) and TSW3 (13.58 g), which were subjected to three accelerated aging times (0, 24 and 48 h). First count, weak and strong normal seedlings, percentage of accumulated germination, percentage of death seed, electrical conductivity, fresh and dry weight and shoot length were assessed in laboratory. Seedling emergence, emergence velocity and emergence velocity index were assessed in greenhouse. P. rigida seeds showing higher weight displayed higher percentage of germination and average vigor characteristics. Seeds with higher weight indicated high tolerance to accelerated aging conditions and produced more vigorous plants. Therefore, we suggest that seed lots of P. rigida should be composed considering TSW classes.O presente estudo teve por objetivo avaliar em laboratório e em casa de vegetação a qualidade fisiológica de classes de massa de sementes de Parapiptadenia rigida (Benth.) Brenan, submetidas a condições de envelhecimento acelerado. Um lote de sementes de P. rigida foi separado em três grupos de massa de sementes (peso de mil sementes): PMS1 (lote original; controle, 19,23 g), PMS2 (25,45 g) e PMS3 (13,58 g); e submetido a três tempos de envelhecimento acelerado (0, 24 e 48 h). Em laboratório, foram avaliadas: primeira contagem, plântulas normais fracas e fortes, porcentagem de germinação acumulada, porcentagem de sementes mortas, condutividade elétrica, massas fresca e seca e comprimento da parte aérea das plântulas. Em casa de vegetação, foram avaliadas a emergência de plântulas, a velocidade de emergência e o índice de velocidade de emergência. Sementes de P. rigida com maior massa apresentaram maiores valores de porcentagem de germinação e características de vigor médias. Sementes com maior massa apresentaram indicativos de alta tolerância a condições de envelhecimento acelerado e possibilitaram a obtenção de plântulas mais vigorosas. Portanto, sugere-se que lotes de semente de P. rigida sejam constituídos por sementes classificadas pelo PMS.Embrapa Florestas2018-07-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/150110.4336/2018.pfb.38e201701501Pesquisa Florestal Brasileira; v. 38 (2018)Pesquisa Florestal Brasileira; Vol. 38 (2018)1983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1501/668https://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessSaldanha, Cleber WittMissio, Evandro LuizSteffen, Gerusa Pauli KistMaldaner, JoseilaMorais, Rosana Matos de2019-05-10T19:43:44Zoai:pfb.cnpf.embrapa.br/pfb:article/1501Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2019-05-10T19:43:44Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds Massa é fator determinante na qualidade fisiológica de sementes de Parapiptadenia rigida |
title |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
spellingShingle |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds Saldanha, Cleber Witt Envelhecimento acelerado Germinação Tamanho de semente Accelerated aging Germination Seed size |
title_short |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
title_full |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
title_fullStr |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
title_full_unstemmed |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
title_sort |
Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds |
author |
Saldanha, Cleber Witt |
author_facet |
Saldanha, Cleber Witt Missio, Evandro Luiz Steffen, Gerusa Pauli Kist Maldaner, Joseila Morais, Rosana Matos de |
author_role |
author |
author2 |
Missio, Evandro Luiz Steffen, Gerusa Pauli Kist Maldaner, Joseila Morais, Rosana Matos de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Saldanha, Cleber Witt Missio, Evandro Luiz Steffen, Gerusa Pauli Kist Maldaner, Joseila Morais, Rosana Matos de |
dc.subject.por.fl_str_mv |
Envelhecimento acelerado Germinação Tamanho de semente Accelerated aging Germination Seed size |
topic |
Envelhecimento acelerado Germinação Tamanho de semente Accelerated aging Germination Seed size |
description |
This study aimed to assess the physiological quality of Parapiptadenia rigida (Benth.) Brenan seed weight classes subjected to accelerated aging under laboratory and greenhouse conditions. A lot of P. rigida seeds was split in three seed weight classes (thousand seed weight): TSW1 (original lot; control, 19.23 g), TSW2 (25.45 g) and TSW3 (13.58 g), which were subjected to three accelerated aging times (0, 24 and 48 h). First count, weak and strong normal seedlings, percentage of accumulated germination, percentage of death seed, electrical conductivity, fresh and dry weight and shoot length were assessed in laboratory. Seedling emergence, emergence velocity and emergence velocity index were assessed in greenhouse. P. rigida seeds showing higher weight displayed higher percentage of germination and average vigor characteristics. Seeds with higher weight indicated high tolerance to accelerated aging conditions and produced more vigorous plants. Therefore, we suggest that seed lots of P. rigida should be composed considering TSW classes. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07-11 |
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1501 10.4336/2018.pfb.38e201701501 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1501 |
identifier_str_mv |
10.4336/2018.pfb.38e201701501 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1501/668 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; v. 38 (2018) Pesquisa Florestal Brasileira; Vol. 38 (2018) 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
_version_ |
1783370936214355968 |