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| Amorim,Juliane dos Santos; Souza,Margarete Magalhães; Viana,Américo José Carvalho; Freitas,Jôsie Cloviane de Oliveira. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: In vivo pollination; In vitro germination; Passion flower; Pollen-ovule ratio. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000400007 |
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| Freitas,Jôsie Cloviane de Oliveira; Almeida,Alex-Alan Furtado de; Lago,Maria Fragassi; Souza,Margarete Magalhães de; Souza Júnior,José Olimpio de. |
| Plantas clonais de Passiflora alata foram submetidas a quatro níveis de sombreamento (0; 25; 50 e 75%) aos 75 dias após o estaqueamento (DAE). Dez dias após, aplicou-se nitrogênio (N) nas dosagens de 0; 25;50; 100 e 200 mg N kg-1 de solo. Verificou-se, aos 175 DAE, interação significativa (p<0,05) entre níveis de sombreamento (NS) e doses de N, para todos os parâmetros fotossintéticos avaliados. Observou-se um aumento na taxa fotossintética líquida com a elevação de NS e de N até a dose de 146 mg N kg-1. A taxa transpiratória apresentou efeito quadrático tanto para NS quanto para N, tendendo a aumentar com o incremento de NS e N até 50% de sombreamento e 137 mg N kg-1, respectivamente. A espessura dos tecidos do mesofilo foliar foi reduzida com a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crescimento; Fotossíntese; Maracujá-doce. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000300028 |
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| Santos,Eileen Azevedo; Souza,Margarete Magalhães; Viana,Alexandre Pio; Almeida,Alex-Alan Furtado de; Araújo,Ioná Santos; Freitas,Jôsie Cloviane de Oliveira. |
| Ornamental hybrids of passion flowers are thoroughly diffused in many countries and used in the decoration of houses and gardens. However, the cultivation of ornamental passion fruits practically unexploited in Brazil. This study aimed at evaluating the growth and blooming of F1 hybrids of Passiflora L. (P. sublanceolata J.M. MacDougal [ex P. palmeri var. sublanceolata Killip] vs. P. foetida var. foetida L.) cultivated in ceramic and concrete pots under different shading levels. The vegetative and flower evaluations were carried out weekly, in clonal cuttings 60 days after rooting. The height, leaf length and width, the number of internodes and leaves and stem diameter were evaluated using a randomized complete design in a factorial scheme which... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passion flower; Ornamental hybrids; Interspecific hybridizations; Light intensity; Morphological characteristics. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200007 |
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| Silva,Fernando Higino de Lima e; Viana,Alexandre Pio; Ferreira,Rulfe Tavares; Freitas,Jôsie Cloviane de Oliveira; Santos,Jardel Oliveira; Rodrigues,Daniele Lima. |
| Passion fruit belongs to the family Passifloraceae, and the genus Passiflora is regarded the most economically important. The present study aimed to quantify genetic diversity among progenies of sour passion fruit, in order to define potential heterotic groups, based on morpho-agronomic descriptors, using the Ward-MLM procedure. It is useful for generation advancement in the passion fruit breeding program, via recurrent selection, under development at the Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). For such, 81 full-sib progenies belonging to the third recurrent selection cycle (C03) were assessed. Twenty-three descriptors were used, five of which were qualitative and 18, quantitative. The quantitative and qualitative variables were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis Sims.; Genetic variability; Multivariate analysis; Characterization of germplasm. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300003 |
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