Enhanced germination of seeds native to Brazil: A comparative analysis between free and nanoencapsulated gibberellic acid in Dyckia sp. (Bromeliaceae)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Londrina (UEL)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Paula, Jean Carlo Baudraz-
Autor(es): dc.creatorGuariz, Hugo Roldi-
Autor(es): dc.creatorde Moraes, Kauê Alexandre Monteiro-
Autor(es): dc.creatorShimizu, Gabriel Danilo-
Autor(es): dc.creatorde Faria, Ricardo Tadeu-
Autor(es): dc.creatorde Oliveira, Halley Caixeta-
Autor(es): dc.creatorFraceto, Leonardo Fernandes-
Autor(es): dc.creatorPereira, Anderson Espirito Santo-
Data de aceite: dc.date.accessioned2025-08-21T20:29:56Z-
Data de disponibilização: dc.date.available2025-08-21T20:29:56Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2478/fhort-2023-0029-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300303-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300303-
Descrição: dc.descriptionBrazil is home to a great diversity of species of the genus Dyckia. However, many of these species are threatened due to habitat destruction and predatory exploitation. An alternative to conserving these plants is sexual propagation using plant regulators to stimulate germination. Gibberellic acid (GA3) is an effective regulator in this process, but its instability and ease of degradation pose challenges. Therefore, nanoencapsulation of GA3 could be used to protect the molecule and allow controlled release. In this study, the effects of different doses of GA3 were evaluated on the germination of four species: D. cabrerae, D. dusenii, D. pottiorum and D. walteriana. The first stage consisted of soaking the seeds in different concentrations of GA3, in which the species D. dusenii and D. walteriana showed significant responses to GA3, with an increase from 35% to more than 60% germination. However, the species D. cabrerae and D. pottiorum responded positively to GA3 only in vegetative growth parameters. In the second stage, the use of nanoparticles of alginate/chitosan (NP ALG/CS) and chitosan/tripolyphosphate (NP CS/TPP) containing GA3 was compared with free GA3 and with NPs without GA3. It was verified that the use of nanoencapsulated GA3 resulted in a more efficient germination response in D. walteriana seeds, using smaller doses of the regulator (between 0.75 mg ∙ L–1 and 1.0 mg ∙ L–1), mainly with the ALG/CS NPs. Therefore, the use of GA3 is recommended for D. dusenii and D. walteriana, and for the latter, nanoparticles containing ALG/CS-GA3 allow a reduction in the required dose.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionAgronomy Department Universidade Estadual de Londrina (UEL)-
Descrição: dc.descriptionEnvironmental Nanotechnology Lab. Science and Technology Institute of Sorocaba (ICTS) São Paulo State University (UNESP), Sorocaba, Av. Três de Março, 511 - Alto da Boa Vista, SP-
Descrição: dc.descriptionEnvironmental Nanotechnology Lab. Science and Technology Institute of Sorocaba (ICTS) São Paulo State University (UNESP), Sorocaba, Av. Três de Março, 511 - Alto da Boa Vista, SP-
Descrição: dc.descriptionFAPESP: 2017/21004-5-
Descrição: dc.descriptionFAPESP: 21/10639-5-
Descrição: dc.descriptionCNPq: n° 301684/2017-0-
Descrição: dc.descriptionCNPq: n° 308439/2021-0-
Descrição: dc.descriptionCNPq: n° 311034/2020-9-
Descrição: dc.descriptionCAPES: n° 88881.191767/2018-01-
Descrição: dc.descriptionCAPES: n° 88882.448347/2019-01-
Formato: dc.format403-418-
Idioma: dc.languageen-
Relação: dc.relationFolia Horticulturae-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbromeliads-
Palavras-chave: dc.subjectdomestication-
Palavras-chave: dc.subjectgibberellins-
Palavras-chave: dc.subjectnanotechnology-
Palavras-chave: dc.subjectplant growth regulators-
Título: dc.titleEnhanced germination of seeds native to Brazil: A comparative analysis between free and nanoencapsulated gibberellic acid in Dyckia sp. (Bromeliaceae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.