Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/29757
Título: Influence of priming on Eucalyptus spp seeds' tolerance to salt stress
Título(s) alternativo(s): Influência do condicionamento osmótico na tolerância ao estresse salino em sementes de Eucalyptus spp
Palavras-chave: Eucalyptus urophylla
E. grandis x E. urophylla
Abiotic stress
Physiological conditioning
Estresse abiótico
Condicionamento fisiológico
Data do documento: 2016
Editor: Associação Brasileira de Tecnologia de Sementes (ABRATES)
Citação: JOSÉ, A. C. et al. Influence of priming on Eucalyptus spp seeds' tolerance to salt stress. Journal of Seed Science, Londrina, v. 38, n. 4, Oct./Dec. 2016.
Resumo: The objective of this experiment was to evaluate the effect of priming on the germination of Eucalyptus urophylla and of hybrid E. urophylla × E. grandis seeds under salt stress. Two osmotic potentials (-1.0 and -1.5 MPa) were tested, using PEG 6000 for 1 and 3 days. After priming, seeds were germinated under salt stress in a NaCl solution at 0.0 (control), -0.5, -0.75 and -1.0 MPa potentials, at 25 °C. Seed germination and germination speed index decreased as the water potential of the germination medium decreased. However, E. urophylla was more tolerant to salt stress; it showed a higher germination percentage under all tested potentials, when compared to the hybrid. The osmotic conditioning at -1.0 MPa for three days was more effective when E. urophylla x E. grandis was germinated in a salt solution at -1.0 MPa, indicating that this treatment was more effective in inducing tolerance to salt stress.
URI: http://repositorio.ufla.br/jspui/handle/1/29757
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