Weight is a key factor in the physiological quality of Parapiptadenia rigida seeds

Detalhes bibliográficos
Autor(a) principal: Saldanha, Cleber Witt
Data de Publicação: 2018
Outros Autores: Missio, Evandro Luiz, Steffen, Gerusa Pauli Kist, Maldaner, Joseila, Morais, Rosana Matos de
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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spelling 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
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