Data/hora: 12/06/2024 11:46:07

Provedor de dados: | 95
País: | Brazil
Título: | Hydration of carrot seeds in relation to osmotic potential of solution and conditioning method
Autores: | Pereira,Márcio Dias; Dias,Denise Cunha Fernandes dos Santos; Dias,Luiz Antonio dos Santos; Araújo,Eduardo Fontes.
Data: | 2007-01-01
Ano: | 2007
Palavras-chave: | Carrot; Priming; Imbibition; Daucus carota L.
Resumo: | The objective of this study was to monitor carrot seed hydration in water and osmotic solutions to define appropriate conditions for priming treatment. Two Brasília cultivar carrot seed lots were used. Seeds were imbibed in -1.0 and -1.2 MPa PEG 6000 osmotic solutions and in distilled water, in an incubator BOD at 20ºC, using two different hydration methods: imbibition in moistened paper towel sheets and in aerated solutions. The imbibition curves for each seed lot were drawn after determining seed moisture content at 2, 4, 6, 8, 10, 12, 24, 48, 72, 96 hours hydration in water and after 2, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 264, 312 hours hydration in PEG 6000 solutions. Seed hydration in distilled water was faster than in PEG 6000 solutions; the primary root protrusion occurred at 48 hours imbibition as seeds reached 54% moisture content. Osmotic conditioning of carrot seeds should be performed by imbibition in PEG 6000 -1.0 or -1.2 MPa solutions to attain 40% and 45% moisture content (moistened paper) or 40% and 45% (aerated solutions).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222007000300017
Editor: | Associação Brasileira de Tecnologia de Sementes
Relação: | 10.1590/S0101-31222007000300017
Formato: | text/html
Fonte: | Revista Brasileira de Sementes  v.29 n.3 2007
Fonte: | info:eu-repo/semantics/openAccess