Data/hora: 09/06/2024 10:37:36

Provedor de dados: | 88
País: | Brazil
Título: | Physiological, morphological and biochemical characteristics of the sexual propagation of Piper aduncum (Piperaceae)
Autores: | Dousseau,Sara; Alvarenga,Amauri Alves de; Alves,Eduardo; Chaves,Izabel de Souza; Souza,Elma dos Santos; Alves,Juliana da Silva.
Data: | 2011-09-01
Ano: | 2011
Palavras-chave: | Germination; Gibberellin; Light; Post-germination; Temperature.
Resumo: | In this work we attempted to characterize the diaspores and the germination process of Piper aduncum L., as well as to verify the influence of the interaction between presence and absence of light (photoperiod of 12 hours and dark) and temperature (25 °C, 30 °C and 20-30 °C) and also of gibberellin (0, 50, 100, 200 and 400 mg L-1) on the root protrusion and normal seedlings formation. The diaspores are very small with a thousand seed weight of 0.3645 g, 13% moisture and protein reserve. Diaspores are strict positively photoblastic in the tested temperature range and the optimum temperature for root protrusion was 30 °C, while for normal seedlings was 25 °C. The previous permanence in the dark led to an increase in the speed of root protrusion and percentage and speed of seedling formation. The application of gibberellic acid negatively interfered with the protrusion and growth of the radicle while favoring the elongation of hypocotyls.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000300005
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042011000300005
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.34 n.3 2011
Fonte: | info:eu-repo/semantics/openAccess