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vol.31 número3BIOMASSA E PIGMENTOS CLOROPLASTÍDICOS EM MUDAS DE JAQUEIRA SOB ESTRESSE SALINO E ADUBAÇÃO NITROGENADAEFICÁCIA E SELETIVIDADE DE HERBICIDAS APLICADOS EM PRÉ-EMERGÊNCIA DA MANDIOCA índice de autoresíndice de assuntospesquisa de artigos
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Revista Caatinga

versão impressa ISSN 0100-316Xversão On-line ISSN 1983-2125

Resumo

SILVA, DINNARA LAYZA SOUZA DA et al. USE OF ATMOSPHERIC PLASMA IN GERMINATION OF Hybanthus calceolaria (L.) Schulze-Menz SEEDS. Rev. Caatinga [online]. 2018, vol.31, n.3, pp.632-639. ISSN 0100-316X.  http://dx.doi.org/10.1590/1983-21252018v31n311rc.

Plasma technology is a fast, cost-effective, and pollution-free method that can be used in place of conventional methods to overcome seed dormancy. The goal of the present study was to determine the effect of different application times of atmospheric plasma on soaking and germination of Hybanthus calceolaria seeds in order to accelerate these processes. Helium plasma jet produced by dielectric barrier discharge was used to treat H. calceolaria seeds with applications of 1, 5, and 10 minutes. The treated seeds were characterized considering their weight variation during soaking, changes in electrical conductivity, and pH. It was found that germination depended on the plasma application time. The treatment of H. calceolaria seeds with atmospheric plasma for 1 minute provided 3.5 times greater germination in comparison to untreated seeds. Atmospheric plasma technology obtained by dielectric barrier discharge had potential of being used as a germination accelerant in H. calceolaria seeds. The treatment of H. calceolaria seeds using atmospheric plasma for 1 minute favored germination.

Palavras-chave : Germination accelerator; Cold plasma; Soaking; Surface treatment..

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