Physiological response of Erythrina velutina Willd. seeds to accelerated aging

Roberta Sales Guedes, Edna Ursulino Alves, Edilma Pereira Gonçalves, Jeandson Silva Viana, Riselane de Lucena Alcântara Bruno, Pedro Nóbrega Quintas Colares

Abstract


Seed vigor  testing  is  an  important  component of quality  control programs,  and accelerated  aging  is a possible option  in  this process. This  study was conducted  to  investigate procedures  to assess  seed vigor by the accelerated aging test in forest seeds of Erythrina velutina. The experiment was realized at laboratory conditions at Universidade Federal da Paraíba, in Areia – PB, Brazil Northeast. The seeds were stored in plastic bags and kept at 10°C and 50% relative humidity. Accelerated aging was performed at 41°C during 24, 48, 72, and 96 hours; Accelerated aging test identifed differences among seed lots of high and low physiological quality. Seeds were kept in plastic boxes with 40mL of distilled water in a BOD chamber. Seeds were tested for germination and moisture content before and after aging. The results revealed that the combinations 41°C/72 hours and 45°C/24 hours are appropriate for evaluation of the vigor of Erythrina velutina seeds.


Keywords


Germination; Mulungu; Seeds; Vigor.



DOI: http://dx.doi.org/10.5433/1679-0359.2009v30n2p323

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional