Early flowering, genetic dissimilarity and clustering of lettuce cultivars with thermoinhibition tolerant seeds

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorUniv Fed Uberlandia UFU-
Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCatao, Hugo Cesar R. M.-
Autor(es): dc.creatorGomes, Luiz Antonio Augusto-
Autor(es): dc.creatorAzevedo, Alcinei M.-
Autor(es): dc.creatorSiquieroli, Ana Carolina S.-
Autor(es): dc.creatorMaciel, Gabriel M.-
Autor(es): dc.creatorFreitas, Pamela G. N.-
Data de aceite: dc.date.accessioned2025-08-21T21:02:01Z-
Data de disponibilização: dc.date.available2025-08-21T21:02:01Z-
Data de envio: dc.date.issued2022-11-29-
Data de envio: dc.date.issued2022-11-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/s0102-0536-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/237562-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/237562-
Descrição: dc.descriptionHigh temperatures interfere with lettuce cropping. Thermoinhibition of seed germination and early flowering cause important losses for farmers. The objectives of this work were to evaluate the tolerance to early flowering, to verify the genetic dissimilarity and to select lettuce cultivars tolerant to seed thermoinhibition. 18 cultivars were evaluated. The number of days until the first anthesis was verified for early flowering. Regarding seed thermoinhibition, the first and final germination counting and germination speed index were evaluated, using temperatures of 20, 25, 30 and 35??C. The analyses were performed immediately after harvest and after six months under storage. The genetic dissimilarity was obtained using the Tocher Graph optimization and hierarchical UPGMA methods. Regression models were adjusted, and curves??? clustering was performed by testing the identity of the models. Early flowering was observed in cultivars Floresta, Colorado, Grand Rapids, and Everglades. Cultivars showed genetic variability and are dissimilar regarding tolerance to thermoinhibition. By clustering the regression equations, it was possible to select thermoinhibition tolerant cultivars.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)-
Descrição: dc.descriptionUniv Fed Uberlandia UFU, Uberlandia, MG, Brazil-
Descrição: dc.descriptionUniv Fed Uberlandia UFU, Patos De Minas, MG, Brazil-
Descrição: dc.descriptionUniv Fed Minas Gerais, Inst Ciencias Agr UFMG ICA, Montes Claros, MG, Brazil-
Descrição: dc.descriptionUniv Fed Uberlandia UFU, Monte Carmelo, MG, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Fac Ciencias Agr & Tecnol UNESP FCA, Dracena, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Fac Ciencias Agr & Tecnol UNESP FCA, Dracena, SP, Brazil-
Formato: dc.format39-47-
Idioma: dc.languageen-
Publicador: dc.publisherAssoc Brasileira Horticultura-
Relação: dc.relationHorticultura Brasileira-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectLactuca sativa-
Palavras-chave: dc.subjectAnthesis-
Palavras-chave: dc.subjectGenetic variability-
Palavras-chave: dc.subjectMultivariate statistics-
Palavras-chave: dc.subjectTemperature-
Título: dc.titleEarly flowering, genetic dissimilarity and clustering of lettuce cultivars with thermoinhibition tolerant seeds-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.