| Registro completo |
| Provedor de dados: |
AGRIAMBI
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| País: |
Brazil
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| Título: |
Seed germination of Bowdichia virgilioides Kunth, under water stress
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| Autores: |
Silva,Lígia M. de M.
Aguiar,Ivor B. de
Rodrigues,Teresinha de J.D.
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| Data: |
2001-04-01
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| Ano: |
2001
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| Palavras-chave: |
Forest seed
Physiological quality
Osmotic potential
Polyethyleneglycol
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| Resumo: |
Bowdichia virgilioides (Leguminosae-Papilionoideae) is a native tree species in Brazil characteristic of the savannah vegetation. Seeds of this species were submitted to different osmotic potentials induced by polyethyleneglycol (PEG-6000) in order to verify their resistance to drought conditions. Seeds were previously scarified with sulphuric acid and incubated at 25 ºC with an eight hours photoperiod, at osmotic potentials of 0.0, -0.1, -0.3, -0.5, -0.7, -0.9 and -1.1 MPa. It was found that water stress resistance limit ranged from -0.7 to -0.9 MPa. Significant reduction in germination velocity from -0.3 MPa, and final percentage of germination from -0.5 MPa in relation to control, were observed. Germination under drastic conditions of water stress was inhibited, but was restored with an increase of water availability.
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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=S1415-43662001000100021
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| Editor: |
Departamento de Engenharia Agrícola - UFCG
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| Relação: |
10.1590/S1415-43662001000100021
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Engenharia Agrícola e Ambiental v.5 n.1 2001
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| Direitos: |
info:eu-repo/semantics/openAccess
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