Métodos de superação de dormência em sementes de flamboyant

Anderson Luiz Zwirtes; Cléber Antonio Baronio; Edison Bisognin Cantarelli; João Paulo Gonsiorkiewicz Rigon; Silvia Capuani

doi:10.4336/2013.pfb.33.76.568

Methods for overcoming seed dormancy in flamboyant

Authors

Anderson Luiz Zwirtes Federal University of Santa Maria
Cléber Antonio Baronio Embrapa Uva e Vinho, Laboratório de Entomologia
Edison Bisognin Cantarelli Universidade Federal de Santa Maria, Centro de Educação Superior Norte do RS
João Paulo Gonsiorkiewicz Rigon Universidade Federal de Santa Maria, Centro de Educação Superior Norte do RS
Silvia Capuani Universidade Estadual Paulista "Júlio de Mesquita Filho"

DOI:

https://doi.org/10.4336/2013.pfb.33.76.568

Keywords:

Silviculture, Emergency, Delonix regia

Abstract

The flamboyant tree (Delonix regia) is known for its exuberant flowering. It shows great variation in seeds viability, depending on the cutaneous water proofing, requiring processes to break dormancy. The objective of this study was to evaluate methods of breaking the physical barrier of seeds. In the greenhouse, seeds were subjected to different treatments to overcome the cutaneous restriction: mechanical scarification on the ventral part; thermal shock with soaking seeds in water at 80 °C for 10 min; soaking the seeds in sulfuric acid, and control, without intervention. It was observed that the mechanical scarification provided the best results for dormancy breaking of the seeds.

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Author Biographies

Anderson Luiz Zwirtes, Federal University of Santa Maria

http://lattes.cnpq.br/7105268741658406
Cléber Antonio Baronio, Embrapa Uva e Vinho, Laboratório de Entomologia

http://lattes.cnpq.br/3546996067614619
Edison Bisognin Cantarelli, Universidade Federal de Santa Maria, Centro de Educação Superior Norte do RS

http://lattes.cnpq.br/4560164051845708
João Paulo Gonsiorkiewicz Rigon, Universidade Federal de Santa Maria, Centro de Educação Superior Norte do RS

http://lattes.cnpq.br/9000573457999515
Silvia Capuani, Universidade Estadual Paulista "Júlio de Mesquita Filho"

http://lattes.cnpq.br/0349430799355122

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PDF (Portuguese (Brazil))

Published

2013-12-31

Issue

Vol. 33 No. 76 (2013): out./dez.

Section

Scientific Notes

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