| Registro completo |
| Provedor de dados: |
Rev. Bras. Bot.
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| País: |
Brazil
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| Título: |
Self-, cross- and interspecific pollinations in Passiflora capsularis and P. rubra
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| Autores: |
Amorim,Juliane dos Santos
Souza,Margarete Magalhães
Viana,Américo José Carvalho
Freitas,Jôsie Cloviane de Oliveira
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| Data: |
2011-12-01
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| Ano: |
2011
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| Palavras-chave: |
In vivo pollination
In vitro germination
Passion flower
Pollen-ovule ratio
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000400007
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| Editor: |
Sociedade Botânica de São Paulo
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| Relação: |
10.1590/S0100-84042011000400007
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Botany v.34 n.4 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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