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| Registros recuperados: 28 | |
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| Pinheiro,Mardiore; Brito,Vinicius Lourenço Garcia de; Sazima,Marlies. |
| ABSTRACT This study describes the floral phenology and morphology, reproductive biology and pollinators for eight legume tree species, Schizolobium parahyba, Senna macranthera, and Senna multijuga (Caesalpinioideae), as well as Andira fraxinifolia, Lonchocarpus cultratus, Pterocarpus violaceus, Swartzia oblata, and S. simplex (Papilionoideae), in the Atlantic Forest in Southeast Brazil. All the studied species showed an annual flowering pattern, and almost all are of the cornucopia-flowering type, with the only exception being Swartzia oblata, which was of the steady-state type. In general, the legume flowers studied are conspicuous, mostly medium-sized, and offer nectar and/or pollen as a resource. Self-incompatibility associated with the production of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee pollination; Bombus; Caesalpinioideae; Centridini; Euglossina; Faboideae; Floral biology; Reproduction; Self-incompatibility; Xylocopa. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300410 |
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| Speroni,Gabriela; Izaguirre,Primavera; Bernardello,Gabriel; Franco,Jorge. |
| Trifolium polymorphum is an amphicarpic species that grows in Uruguay, Argentina, Brazil, Paraguay and Chile. Underground flowers are cleistogamous, obligately autogamous and morphologically highly modified in structure and function. Aerial flowers are chasmogamous, and as mentioned in earlier literature, either allogamous or autogamous. The aim of this study is to identify flower characteristics that facilitate or prevent autogamous or allogamous processes. Floral phenology stages are thus studied in correlation with estimated models of aerial flower development, pollen viability and stigmatic receptivity in three Uruguayan T. polymorphum populations. Flower longevity and development (length, width, and anther-stigma distance), anthesis and anther... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding system; Floral biology; Intrafloral phenology; Trifolium polymorphum. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000300029 |
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| Mori,Scott Alan. |
| A família Lecythidaceae apresenta grande diversidade em matas higrófilas localizadas abaixo de 1000 m de altitude. Poucas espécies ocorrem em cerrados, várzeas, e em matas acima de 1000 m. O Brasil, onde ocorrem 54% das espécies de Lecythidaceae do Novo Mundo, tem mais espécies desta família que qualquer outro país no mundo, sendo especialmente rico ém espécies com flores zigomorfas. A evolução floral ocorreu principalmente no androceu que pode ser do tipo actinomorfo ou do tipo zigomorfo. Os polinizadores principais são abelhas sendo a única exceção a polinização por morcegos em Lecythis poiteaui. As abelhas da tribo Euglossini parecem ser muito importantes na evolução de Lecythidaceae com flores zigomorfas. As flores de Lecythidaceae oferecem três... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lecythidaceae; Floral biology. |
| Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300012 |
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| Martins,Cristiane; Freitas,Leandro. |
| ABSTRACT Plant-pollinator interactions range from obligatory specialists to facultative generalists, and floral morphology and pollination system may not match completely. The floral biology, reproductive system and floral visitors of a species of the tribe Rhipsalideae were investigated with a focus on the consistency between the pollination system and the floral phenotype. Rhipsalis neves-armondii is an obligate xenogamous species, due to self-sterility. Its flowers are white, small and diurnal, and radially symmetrical. These features, along with their small amount of nectar, characterize the flowers as phenotypic generalists. The most frequent pollinators were a solitary oligolectic species of Andrenidae (Rhophitulus solani), two species of Meliponinae... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cactaceae; Floral biology; Montane rain forest; Oligolectic bees; Pollinators; Reproductive system; Rhipsalis; Self-incompatibility. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300359 |
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| Terra-Araujo,Mário Henrique; Webber,Antonio Carlos; Vicentini,Alberto. |
| The floral biology, pollination and breeding system of Pagamea duckei Standl. (Rubiaceae) were studied at the Reserva Biológica da Campina, Manaus, Amazonas, Brazil. Floral morphology suggested that P. duckei is a distylous species. However, crossing experiments revealed that it is functionally dioecious. The flowers are actinomorphic, yellowish, produce nectar and a sweet odor, which is more intense in the morning. Anthesis started in the morning between 5.00 and 6.00 AM and extended until dusk, when the corolla tube abscissed. The flowers were visited mostly by bees of the genus Melipona. Pagamea duckei is not agamospermic and thus needs pollen vectors for effective pollination. The results of this study strengthen the idea that, in Pagamea, species with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral biology; Heterostyly; Campinarana forests; Central Amazonia. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400010 |
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| Chiari,Wainer César; Toledo,Vagner de Alencar Arnaut de; Ruvolo-Takasusuki,Maria Claudia Colla; Attencia,Valeria Maria; Costa,Fabiana Martins; Kotaka,Carolina Satie; Sakaguti,Eduardo Shiguero; Magalhães,Helida Regina. |
| This research was carried out to evaluate the pollination by Africanized honeybees Apis mellifera, the floral biology and to observe the hoarding behavior in the soybean flowers (Glycine max Merril), var. BRS-133. The treatments were constituted of demarcated areas for free visitation of insects, covered areas by cages with a honeybee colony (A. mellifera) and also covered areas by cage without insects visitation. All areas had 24 m² (4m x 6m). The soybean flowers stayed open for a larger time (82.82 ± 3.48 hours) in covered area without honeybees. The stigma of the flowers was also more receptive (P=0.0021) in covered area without honeybees (87.3 ± 33.0%) and at 10:42 o'clock was the schedule of greater receptivity. The pollen stayed viable in all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Africanized honeybee; Apis mellifera; Soybean; Glycine max; Pollination; Floral biology; Honeybee behavior. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300006 |
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| Mussury,Rosilda Mara; Fernandes,Wedson Desidério. |
| Studies of the floral biology of canola were accomplished with the objective of enlarging the system and reproductive strategies knowledge of its CTC-4 cultivar in Dourados, Centerwest, Brazil. Brassica napus is self pollinated, presenting however, many resources for the allogamy accomplishment, e.g., abundant pollen, nectar and scent production. The smaller anther were responsible for the production of fruit with smaller and less growth seeds, when compared to the autogamy, autopollination and cross pollination tests. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica napus; Canola; Floral biology. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100014 |
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| Registros recuperados: 28 | |
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