STORAGE OF Handroanthus umbellatus SEEDS
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
18/03/2015
18/03/2015
01/07/2014
|
Resumo |
Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and longevity behavior of Handroanthus umbellatus seeds subject to the following storage treatments: packaging permeable paper bags under a no-controlled laboratory temperature and humidity (control) and multiwall semipermeable bag at temperatures of -18 degrees C ,1 degrees C and 25 degrees C. Seeds were dried to 6.3% of water content. Stored seeds were evaluated every three months until 24 months for water content, germination percentage and vigor utilizing first counting test. Seeds of T. umbellata are orthodox, with low longevity under natural conditions, once they remain viable for less than 5 months. The best conditions of seed preservation of these species were obtained by storage at -18 degrees C in multiwall bags. Under these conditions physiological seed quality remains unchanged for a 24-month period. |
Formato |
533-539 |
Identificador |
http://dx.doi.org/10.5902/1980509815725 Ciencia Florestal. Santa Maria: Centro Pesquisas Florestais, Ufsm, v. 24, n. 3, p. 533-539, 2014. 0103-9954 http://hdl.handle.net/11449/117631 10.5902/1980509815725 WOS:000343280800002 WOS000343280800002.pdf |
Idioma(s) |
por |
Publicador |
Centro Pesquisas Florestais, Ufsm |
Relação |
Ciencia Florestal |
Direitos |
openAccess |
Palavras-Chave | #Tabebuia umbellata #Handroanthus eximius #seed preservation #vigor |
Tipo |
info:eu-repo/semantics/article |