Dormancy of seeds overcome and initial development in Brachiaria brizantha CV MG5 through scarification with sulfuric acid

  • Roxelle Ethienne Ferreira Munhoz Universidade Estadual de Maringá - UEM
  • Patricia Costa Zonetti Centro Universitário de Maringá – CESUMAR
  • Sidnei Roman Universidade Paranaense - UNIPAR

Abstract

The grasses of the genus Brachiaria are considered of great importance in the diet of the Brazilian cattle, but its seeds present dormancy as a factor to be overcome for germination. The objective was to evaluate the effect of chemical treatment with sulfuric acid in Brachiaria brizantha cv. MG5 seeds on the germination rate and seedlings early growth. The concentrations tested were the immersion of 2M sulfuric acid and 5.10 per 15 minutes and 5M for 5, 10 and 15 minutes, plus a control. The results indicated that the most appropriate treatments for overcoming dormancy were the five 2M and 5M for 5 minutes and 15 minutes. The use of sulfuric acid in overcome Brachiaria brizantha cv. MG5 seeds dormancy accelerates the initial growth of the radicle and shoot and do not affect the development of biomass of the seedlings.

Author Biographies

Roxelle Ethienne Ferreira Munhoz, Universidade Estadual de Maringá - UEM
Doutoranda pelo Programa de Pós-Graduação em Genética e Melhoramento da Universidade Estadual de Maringá - UEM. E-mail: roxellemunhoz@gmail.com; roxellem@hotmail.com
Patricia Costa Zonetti, Centro Universitário de Maringá – CESUMAR
Docente do Centro Universitário de Maringá – CESUMAR. E-mail: patriciazonetti@cesumar.br
Sidnei Roman, Universidade Paranaense - UNIPAR
Bacharel em Ciências Biológicas pela Universidade Paranaense – UNIPAR, Campus Paranavaí. E-mail: sidnei_roman@hotmail.com
Published
2009-04-27
Section
Agrobusiness