Data/hora: 02/06/2024 14:34:27

Provedor de dados: | 88
País: | Brazil
Título: | Self-, cross- and interspecific pollinations in Passiflora capsularis and P. rubra
Autores: | Amorim,Juliane dos Santos; Souza,Margarete Magalhães; Viana,Américo José Carvalho; Freitas,Jôsie Cloviane de Oliveira.
Data: | 2011-12-01
Ano: | 2011
Palavras-chave: | In vivo pollination; In vitro germination; Passion flower; Pollen-ovule ratio.
Resumo: | This study aimed to characterize the reproductive system of Passiflora capsularis L. and P. rubra L. In vivo controlled pollinations, in vitro pollen germination and pollen-ovule (P:O) ratio evaluation were conducted. In self-pollination, intraspecific and interspecific pollination, P. capsularis showed means of 62.5, 68.7 and 48.4% of fertilized flowers, while in P. rubra, the averages were 67.2, 62.5 and 46.9%, respectively. For in vitro germination, 52.2% of P. capsularis pollen grains germinated while in P. rubra, the percentage was 64.4. The P:O ratio was 22.4 for P. capsularis, and 27.4 for P. rubra, which included them in the category of obligatory autogamous. Passiflora capsularis and P. rubra can reproduce both by self-pollination and cross-pollination, and crossings between the two species succeeded though the success rate was lower than 50%. The characteristics of the reproductive system of both species allow the use of greater range of options on breeding methods for production of ornamental Passiflora plants.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000400007
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042011000400007
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.34 n.4 2011
Fonte: | info:eu-repo/semantics/openAccess