Conservation of Hibiscus acetosella germplasm by seed cryopreservation

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMoraes, Rodrigo Miranda-
Autor(es): dc.creatorNery, Fernanda Carlota-
Autor(es): dc.creatorPinto, Mayara Caroline Carvalho-
Autor(es): dc.creatorPaiva, Renato-
Autor(es): dc.creatorSilva, Diogo Pedrosa Corrêa da-
Autor(es): dc.creatorPaiva, Patrícia Duarte de Oliveira-
Autor(es): dc.creatorBarbosa, Sandro-
Data de aceite: dc.date.accessioned2026-02-09T12:51:47Z-
Data de disponibilização: dc.date.available2026-02-09T12:51:47Z-
Data de envio: dc.date.issued2020-05-13-
Data de envio: dc.date.issued2020-05-13-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/40891-
Fonte completa do material: dc.identifierhttps://www.cropj.com/barbosa_13_3_2019_372_379.pdf-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1169735-
Descrição: dc.descriptionHibiscus acetosella (Malvaceae) is a shrub of great importance for landscaping, food and medicinal purposes. The objective of this study was to preserve H. acetosella germplasm by seed cryopreservation. Half of the seed batch was scarified and the other half was kept intact. Cryopreservation occurred by immersion in liquid nitrogen for 1 hour. Moisture content (MC%), germination percentage (G%), germination speed index (GSI), normal seedling formation (NS%), shoot length (SL), dry matter (DM), biometry and plant survival were evaluated after treatment. MC% ranged between 7.7% and 6.65% in intact and scarified seeds, respectively. Scarification raised G% and GSI compared to intact seeds. Intact and scarified seeds had 100% and 70% NS%, respectively, when not cryopreserved. Cryopreservation reduced NS% to 62% and 12.75%, respectively. The highest SL was observed in intact and noncryopreserved seeds, with an average of 10.21 cm in height. However, the cryopreservation of intact seeds reduced SL by about 50%, and scarification led to a further reduction, either with (3.32 cm) or without (2.47 cm) cryopreservation. Seedlings from intact and non-cryopreserved seeds showed higher DM in relation to seedlings from cryopreserved seeds. The association of cryopreservation and scarification further reduced DM. The cryopreservation of intact seeds yielded 100% survival at the end of the acclimatization process. However, cryopreservation of scarified seeds reduced the survival percentage to 15%. Changes in color were observed for seeds scarified and subjected to cryopreservation. Thus, cryopreservation is considered an efficient technique for the conservation of intact H. acetosella seeds in the long term.-
Idioma: dc.languageen-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceAustralian Journal of Crop Science-
Palavras-chave: dc.subjectIn vitro conservation-
Palavras-chave: dc.subjectMedicinal plants-
Palavras-chave: dc.subjectMechanical scarification-
Palavras-chave: dc.subjectVinagreira roxa-
Título: dc.titleConservation of Hibiscus acetosella germplasm by seed cryopreservation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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