Data/hora: 09/06/2024 17:22:32

Provedor de dados: | 75
País: | Brazil
Título: | Desiccation effects on germination and vigor of King palm seeds
Autores: | Martins,Cibele C.; Bovi,Marilene L. A.; Nakagawa,João.
Data: | 2003-03-01
Ano: | 2003
Palavras-chave: | Archontophoenix alexandrae; Alexandra palm; Seed deterioration; Electrical conductivity; Recalcitrance; Desiccation tolerance; Critical moisture; Lethal moisture.
Resumo: | The desiccation tolerance of Archontophoenix alexandrae (Wendl. &amp;amp; Drude) seeds was determined and the most sensitive vigor test for assessing seed deterioration of this species was identified. Mature fruits were harvested in the palm collection of the Instituto Agronomico in Campinas, Brazil. Depulped fruits were transported in impermeable packages to the Faculdade de Agronomia in Botucatu, where the seeds were dried. As the seed moisture decreased, germination, seedling length, electrical conductivity and moisture were measured. The seeds of A. alexandrae are recalcitrant, with high germination percentage (over 67%) when undried (47% seed moisture). Lowering seed moisture below 31.5% reduced the germination rate significantly (&lt;52.5%). Total germination failure was observed when seed moisture reached 15.1%. The electrical conductivity was the most sensitive vigor test to identify seed deterioration.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362003000100019
Editor: | Associação Brasileira de Horticultura
Relação: | 10.1590/S0102-05362003000100019
Formato: | text/html
Fonte: | Horticultura Brasileira  v.21 n.1 2003
Fonte: | info:eu-repo/semantics/openAccess