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Magnetic field in coffee seed germination

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dc.contributor.author Braga Júnior, Roberto Alves
dc.contributor.author Azevedo, Roberto Luiz de
dc.contributor.author Guimarães, Renato Mendes
dc.contributor.author Reis, Leandro Vilela
dc.date.accessioned 2024-08-14T22:19:21Z
dc.date.available 2024-08-14T22:19:21Z
dc.date.issued 2020-07-13
dc.identifier.citation BRAGA JÚNIOR, Roberto Alves et al. Magnetic field in coffee seed germination. Ciência e Agrotecnologia, Lavras, v. 44, e003920, 13 jul. 2020. pt_BR
dc.identifier.issn 1981-1829
dc.identifier.uri https://doi.org/10.1590/1413-7054202044003920 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/14535
dc.description.abstract The effective production of coffee seedlings faces many challenges, including seed germination. Therefore, a reduced seed germination period can be one of the most relevant contributions to enhance the testing and production of robust seedlings. The objective of this research was to evaluate the effects of a constant magnetic field on the germination of coffee seeds (Coffea arabica L.). The analyses were performed using a biospeckle laser (BSL) in conjunction with traditional seed viability tests. The coffee seeds were subjected to magnetic fields of constant intensity at values of 10 mT and 28 mT for a time interval of 6 days during their germination process. The embryo region was illuminated, and the images obtained by the BSL were processed. The activity levels of this region were compared with the data obtained using traditional physiological seed analysis. In addition to the results of BSL activity, the results of the seed analysis, such as isoenzymatic catalase (CAT), esterase (EST), superoxide dismutase (SOD), malate dehydrogenase (MDH) and endo-β-mananase, membrane integrity, germination, germination speed index (GSI), emergence speed index (ESI), and radicular protrusion levels, were obtained during the germination process. In conclusion, magnetic pretreatment with both intensities during the first six days of germination improved the permeability of the cellular membranes and advanced the activation of the antioxidant system, thus promoting faster and more uniform seed germination. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Editora UFLA pt_BR
dc.relation.ispartofseries Ciência e Agrotecnologia;v. 44, e003920, 2020;
dc.rights Open Access pt_BR
dc.subject Magnetism pt_BR
dc.subject breaking dormancy pt_BR
dc.subject BSL pt_BR
dc.subject.classification Cafeicultura::Sementes e mudas pt_BR
dc.title Magnetic field in coffee seed germination pt_BR
dc.type Artigo pt_BR

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