Effect of temperature and pre-germinative treatments in the germination of Adenanthera pavonina L. seeds

Advanio Inácio Siqueira Silva, Viviana Borges Corte, Márcio Dias Pereira, Geraldo Rogério Faustini Cuzzuol, Idalina Tereza de Almeida Leite

Abstract


Adenanthera pavonina L. is a native tree specie from India and with extensive distribution in all Brazilian states, whose seeds have dormancy and present medicinal and economical interest. The objective of this research was to evaluate the effect of different temperatures and pre-germinative treatments on the germinative behavior of newly collected A. pavonina seeds. The seeds were submitted to three settled temperatures: 20, 25 and 30ºC; and to five pre-germinative treatments: coating cutting with pliers, friction in sandpaper, immersion for twenty minutes in  sulfuric acid, immersion in water at 80ºC for 5 minutes and control (without any treatment). The vigor of the seeds was evaluated by the percentage, first count, speed and mean time of germination. The experimental design used was a completely randomized with four replications and the averages were compared by the Tukey test, at 5% probability. The best germinative performance of the seeds was at temperatures of 20 and 25°C and in the pre-germinative treatments of mechanical scarification through the coating cutting with pliers and friction in sandpaper, and chemical scarification with immersion for 20 minutes in sulfuric acid.


Keywords


Vigor; Dormancy; Scarification



DOI: http://dx.doi.org/10.5433/1679-0359.2009v30n4p815

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