| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Methods for overcoming dormancy and seed storage of Enterolobium contortisiliquum
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| Autores: |
Ferraz, Denes
Ramalho, Werther Pereira
Vale, Luís Sérgio Rodrigues
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| Data: |
2019-03-13
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| Ano: |
2019
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| Palavras-chave: |
Exogenous dormancy
Immersion
Mechanical scarification
Leguminous plants
Seedling production
Pacara earpod tree.
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| Resumo: |
The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical and physiological quality of seeds, respectively. Variations in moisture content and electrical conductivity during storage did not have effect on the percentage of germination. EI treatment was more efficient for overcoming dormancy than the ES was, regardless of storage time. IM and TE treatments did not lead to germination. EI was the most efficient treatment for decreasing the TME. The results indicate that alternative and low-cost methods are efficient at overcoming exogenous dormancy and thus can be used to optimize the process of seedling production.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602
10.4025/actasciagron.v41i1.42602
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602/pdf
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602/751375147156
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e42602
Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e42602
1807-8621
1679-9275
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| Direitos: |
Copyright (c) 2019 Acta Scientiarum. Agronomy
https://creativecommons.org/licenses/by/4.0
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