Comportamento fisiológico de sementes de Cordia verbenacea DC (Boraginaceae) sob diferentes substratos, temperaturas e luz

• Autor(a) principal: Machado, Tatiana Marquini [UNESP]
• Data de Publicação: 2011
• Outros Autores: Janani, Jamile Kassem [UNESP], Ferreira, Maria Izabela [UNESP], Ono, Elizabeth Orika [UNESP], Lima, Giuseppina Pace Pereira [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.periodicos.rc.biblioteca.unesp.br/index.php/naturalia/article/view/5208; http://hdl.handle.net/11449/141232
• topic: Imbibition curve; Relative humidity; GVI; Medicinal; Curva de embebição; IVG; Umidade relativa; Medicinal

The interest in the propagation of Cordia verbenacea is due to its secondary metabolites of pharmacological importance, and they α-humulene and β-caryophyllene. The objective of this study was to determine the imbibition curve, to evaluate the influence of light and temperature on germination and the substrate in the emergence of the seedlings of this species. Was determined the imbibition curve by method of seed submerged, with 8 repetitions of 100 seeds. The germination test was carried out under different temperatures (15, 20, 25, 30, 35 and 40 ° C), constant illumination and no illumination, with 4 repetitions of 100 seeds in 6X2 factorial. The emergence test was conducted with three substrates: sand, sand and a commercial substrate (1:1) and commercial substrate, with 4 repetitions of 100 seeds. The results were evaluated by Tukey test at 5%, and the data of the emergency was transformed into the square root of X + 0.5. It is concluded that the seed in contact with the water outweigh the stage I of imbibition curve at 1 hour, germinated under constant light, at temperatures between 15 and 30 ° C and the commercial substrate is indicated for emergency.