Consulta: creatorFacets:"Delachiave,Maria Elena Aparecida"
Registros recuperados: 2
Data/hora: 13/06/2024 07:40:35

Limit between stages I and II of a seed imbibition curve
Provedor de dados: 63
Autores: Pinho,Sheila Zambello de; Carvalho,Lídia Raquel de; Delachiave,Maria Elena Aparecida.
A knowledge of the imbibition stages shown by different species, is essential in research projects aiming at improvement of seed quality by treatments such as osmotic conditioning, initial wetting, and the use of bioregulators. The objective of this study was to establish a methodology to determine the limit between the first and second stages of the process, considering the model W = f(t) - (a - w0)exp(-kt), using statistical tests. This limit was determined using an asymptotic distribution of an estimator function. The data point beyond which the difference (W*) is no longer significant was determined using Student's T statistics. The model is &lt;img border=0 id="_x0000_i1026" src="../../../img/revistas/sa/v61n1/a03img01.gif" align=absmiddle &gt; or =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water absorption; Non-linear regression; Germination.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000100003

Germination of Senna Occidentalis link: seed at different osmotic potential levels
Provedor de dados: 52
Autores: Delachiave,Maria Elena Aparecida; Pinho,Sheila Zambello de.
The objective of this research was to study the effect of osmotic potential and salinity on the germination of seeds of Senna occidentalis, with and without a change of solutions. The percentage and rates of germination decreased according to decrease of potential, being more drastic when the substitutions of solutions were not made. The largest reductions were observed with the PEG solutions, with and without substitutions.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germination; Seed; Osmotic potential; Senna occidentalis.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200004