Enviromental temperature and age of seeds in tolerance to thermoinhibition in lettuce genotypes

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorQueiroz, Deborah Abreu-
Autor(es): dc.creatorCavasin, Pedro Yuri-
Autor(es): dc.creatorSilva, Sylmara-
Autor(es): dc.creatorCatão, Hugo César Rodrigues Moreira-
Autor(es): dc.creatorOliveira, Cleiton Lourenço de-
Autor(es): dc.creatorGomes, Luiz Antonio Augusto-
Data de aceite: dc.date.accessioned2026-02-09T11:34:35Z-
Data de disponibilização: dc.date.available2026-02-09T11:34:35Z-
Data de envio: dc.date.issued2023-09-11-
Data de envio: dc.date.issued2023-09-11-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/58331-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1142722-
Descrição: dc.descriptionLettuce seeds usually show germination problems that can be related to dormancy and or thermoinhibition, as well as to the genotype constitution. The knowledge of the temperature at which the thermoinhibition process begins, as well as the influence of the age of the seed on its germination, is extremely important to establish more suitable parameters for the selection of higher genotypes in breeding programs. The objective of this work was to evaluate the seed germination of three lettuce cultivars according to the enviromental temperature and the age of the seeds. The cultivars Everglades (tolerant to thermoinhibition), Luisa (medium tolerant) and Verônica (sensitive) were used. Seeds of each cultivar were evaluated by the standard germination test, first count test, germination speed index and germination test of remaining seeds. The analyses were performed at four environmental temperatures and in seven storage periods after harvest. None of the cultivars showed primary dormancy. The tolerance to thermoinhibition showed by cultivars Everglades and Luisa and the sensitivity of cultivar Verônica were confirmed. The most suitable temperature for differentiating tolerant and sensitive thermoinhibition genotypes occurred from 30.5 ºC and 260 days after harvest.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherUniversidade Federal de Viçosa-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceRevista Ceres-
Palavras-chave: dc.subjectLactuca sativa L-
Palavras-chave: dc.subjectGermination-
Palavras-chave: dc.subjectSeed storage-
Título: dc.titleEnviromental temperature and age of seeds in tolerance to thermoinhibition in lettuce genotypes-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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