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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
26/11/2013 |
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Data da última atualização: |
26/11/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REGO, S. S.; NOGUEIRA, A. C.; MEDEIROS, A. C. de S.; PETKOWICZ, C. L. de O.; SANTOS, A. F. dos. |
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Afiliação: |
Suelen Santos Rego, UFPR; Antonio Carlos Nogueira, UFPR; Antonio Carlos de Souza Medeiros, Pesquisador aposentado da Embrapa Florestas; Carmen Lúcia de Oliveira Petkowicz, UFPR; ALVARO FIGUEREDO DOS SANTOS, CNPF. |
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Título: |
Physiological behaviour of Blepharocalyx salicifolius and Casearia decandra seeds on the tolerance to dehydration. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Seed Science, v. 35, n. 3, p. 323-330, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The present work aimed to develop studies on the tolerance to dehydration of Blepharocalyx salicifolius and Casearia decandra seeds. In order to verify the effect of drying on the seeds, they were placed in desiccators containing a saline solution saturated with potassium acetate (23.5% RH) at temperature of 15 °C. After obtaining the desired moisture contents, the seeds were submitted to the germination, vigor, tetrazolium and electrical conductivity tests. It can be concluded that under slow drying conditions, the seeds of B. salicifolius and C. decandra were sensitive to moisture reduction of 29% to 25%, and lost viability at around 14% and 8% of moisture content, respectively. The physiological changes occurring during seed drying showed there was a decrease in viability and vigor and an increase in electrical conductivity values starting at 25% seed moisture content. |
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Palavras-Chave: |
Casearia decandra; Recalcitrante; Tolerância à dessecação. |
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Thesagro: |
Secagem; Semente. |
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Thesaurus Nal: |
Blepharocalyx salicifolius. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/93163/1/Alvaro.pdf
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Marc: |
LEADER 01641naa a2200241 a 4500
001 1972142
005 2013-11-26
008 2013 bl uuuu u00u1 u #d
100 1 $aREGO, S. S.
245 $aPhysiological behaviour of Blepharocalyx salicifolius and Casearia decandra seeds on the tolerance to dehydration.$h[electronic resource]
260 $c2013
520 $aThe present work aimed to develop studies on the tolerance to dehydration of Blepharocalyx salicifolius and Casearia decandra seeds. In order to verify the effect of drying on the seeds, they were placed in desiccators containing a saline solution saturated with potassium acetate (23.5% RH) at temperature of 15 °C. After obtaining the desired moisture contents, the seeds were submitted to the germination, vigor, tetrazolium and electrical conductivity tests. It can be concluded that under slow drying conditions, the seeds of B. salicifolius and C. decandra were sensitive to moisture reduction of 29% to 25%, and lost viability at around 14% and 8% of moisture content, respectively. The physiological changes occurring during seed drying showed there was a decrease in viability and vigor and an increase in electrical conductivity values starting at 25% seed moisture content.
650 $aBlepharocalyx salicifolius
650 $aSecagem
650 $aSemente
653 $aCasearia decandra
653 $aRecalcitrante
653 $aTolerância à dessecação
700 1 $aNOGUEIRA, A. C.
700 1 $aMEDEIROS, A. C. de S.
700 1 $aPETKOWICZ, C. L. de O.
700 1 $aSANTOS, A. F. dos
773 $tJournal of Seed Science$gv. 35, n. 3, p. 323-330, 2013.
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Embrapa Florestas (CNPF) |
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