Storage of Tabebuia caraiba (Mart.) Bureau seeds in different packaging and temperatures


Autoria(s): Guedes,Roberta Sales; Alves,Edna Ursulino; Melo,Paulo Alexandre Fernandes Rodrigues de; Moura,Sueli da Silva Santos; Silva,Rosemere dos Santos da
Data(s)

01/01/2012

Resumo

Tabebuia caraiba (Mart.) Bureau, commonly known as Silver Trumpet Tree is a forestal species, belonging to Bignoniaceae family, which can be utilized as medicinal plant or in landscaping of urban and rural areas; besides producing large mechanical resistance wood. Despite its wide use and ecological importance, basic studies on storages of their seeds are scarce. This way, the objective of this study was to determine the most adequate packaging and the best temperatures, for storing seeds of T. caraiba. For this, seeds were stored in two types of packaging: Kraft paper bags and transparent polyethylene bags; which were then stored during 150 days under three different environments: laboratory normal environment (25±2 °C); cold chamber (8±2 °C); and refrigerator (6±2 °C). After periods of 0, 30, 60, 90, 120, and 150 days, seed moisture content, percentage of emergence, emergence speed index, and seedling length were evaluated. Seeds of T. caraiba kept in packaging of paper and polyethylene bags and stored at laboratory environmental condition, have lost more quickly their vigor along the storage period. For storage, it is recommended the maintenance of T. caraiba seeds in polyethylene bags into cold chamber; and/or polyethylene bags or Kraft paper bags into refrigerator.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300010

Idioma(s)

en

Publicador

Associação Brasileira de Tecnologia de Sementes

Fonte

Revista Brasileira de Sementes v.34 n.3 2012

Palavras-Chave #emergence #vigor #seed preservation
Tipo

journal article