| Registro completo |
| Provedor de dados: |
Anais da ABC (AABC)
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| País: |
Brazil
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| Título: |
Effect of storage in overcoming seed dormancy ofAnnona coriacea Mart. seeds
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| Autores: |
DRESCH,DAIANE M.
SCALON,SILVANA P.Q.
MASETTO,TATHIANA E.
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| Data: |
2014-12-01
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| Ano: |
2014
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| Palavras-chave: |
Annonaceae
Gibberellins
Brazilian Savanna
Temperatures
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| Resumo: |
The aim of this study was to evaluate the effect of pre-treatments on overcoming dormancy of A. coriacea seeds. Seeds were processed and stored in polyethylene bags at temperatures of at -18°C (42% RH), 5°C (34% RH), 15°C (60% RH) and 25°C (34% RH), during 0, 30, 60, 90, 120 and 150 days. After storage, seeds were immersed in 350 mg.L−1 gibberellic acid for 144 hours. Sowing was carried out in plastic bags containing Red Latosol + Bioplant®. Moisture content, emergence percentage, emergence speed index, length and dry mass of seedlings, were evaluated. The experimental design was completely randomized in a factorial with four replications of 50 seeds each. The seed storage at 5°C and subsequent immersion in gibberellic acid was efficient to reach high percentage, emergence speed and plant growth. A. coriacea seeds showed non-deep simple morphophysiological dormancy wherein the physiological component can be overcome after the seeds are storage at 5°C for a maximum period of 53 days and subsequent immersed in exogenous GA (350 mg.L−1 for 144 hours).
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402077
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| Editor: |
Academia Brasileira de Ciências
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| Relação: |
10.1590/0001-3765201420130276
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| Formato: |
text/html
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| Fonte: |
Anais da Academia Brasileira de Ciências v.86 n.4 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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