Data/hora: 02/06/2024 04:35:42

Provedor de dados: | 63
País: | Brazil
Título: | Performance of advanced generation from a hybrid Japanese cucumber
Autores: | Oviedo,Victoria Rossmary Santacruz; Godoy,Amanda Regina; Cardoso,Antonio Ismael Inácio.
Data: | 2008-01-01
Ano: | 2008
Palavras-chave: | Cucumis sativus L.; Breeding; Heterosis.
Resumo: | Inbreeding reduces the vigor in plants as a result of a decrease in the proportion of heterozygous loci. However, the influence of inbreeding is different among the species. The objective of this work was to evaluate the inbreeding depression in a cucumber Japanese population. An F2 population was obtained from a commercial hybrid (Natsu suzumi), which was considered as S0 population. S1, S2, S3, S4 and S5 progenies were obtained by the 'Single Seed Descent' methodology. A complete blocks design with seven treatments (different generations of self pollination - S0 to S5 and the hybrid Natsu suzumi), and six replications of five plants per plot was used in protected cultivation from Aug. 21 to Nov. 29, 2002. Number of leaves, length of the main stem, number and weight of fruits (total and commercial) number of nodes and vines percentage were evaluated. For most of the traits appraised differences were not observed among populations showing that there was no loss of vigor due to inbreeding in this population.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500016
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162008000500016
Formato: | text/html
Fonte: | Scientia Agricola  v.65 n.5 2008
Fonte: | info:eu-repo/semantics/openAccess