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| Registros recuperados: 28 | |
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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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| Koschnitzke,Cristiana; Sazima,Marlies. |
| (Biologia floral de cinco espécies de Passiflora L. (Passifloraceae) em mata semidecídua). O estudo da biologia floral de cinco espécies de Passiflora foi feito em uma mata de planalto em Campinas, São Paulo. Passiflora alata, P. amethystina e P. miersii apresentam flores de cor púrpura a violeta e corona variegada. As flores são diurnas, perfumadas, autoincompatíveis e polinizadas por abelhas de grande porte. Passiflora amethystina e P. miersii diferem de P. alata por apresentarem filamentos livres no opérculo, que em P. alata é horizontal e denticulado. Estas diferenças no opérculo promovem comportamentos característicos das abelhas durante as visitas. Passiflora suberosa possui flores verde-amareladas e opérculo plicado. As flores são diurnas, inodoras,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora; Floral biology; Bee; Wasp and moth pollination. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041997000200002 |
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| CARVALHO,RAQUEL; WEBBER,ANTONIO C.. |
| A biologia floral e a polinização por abelhas Euglossini de uma Annonaceae é descrita pela primeira vez e as adaptações a esse modo de polinização são comparadas às de outras espécies da família, que é predominantemente polinizada por coleópteros. A espécie Unonopsis guatterioides foi estudada em dois fragmentos de mata de terra firme no município de Manaus (AM). As flores são protogínicas e permanecem abertas expondo os estigmas e estames durante a antese que ocorre entre dois dias. São visitadas por machos de Eulaema bombiformis (Euglossini) que coletam o odor o qual se assemelha ao de "capim cidreira" (Andropogum nardus L.). Visitas de abelhas Meliponidae e coleópteros Chrysomelidae também foram registradas. Unonopsis guatterioides apresenta dicogamia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annonaceae; Floral biology; Pollination; Euglossini; Amazon. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000400008 |
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| PIEDADE-KIILL,LÚCIA HELENA; RANGA,NEUSA TARODA. |
| Aspectos da fenologia, biologia da polinização e reprodução de Jacquemontia multiflora foram estudados na Fazenda Catalunha, Santa Maria da Boa Vista-PE. J. multiflora é uma liana anual, que apresenta floração do tipo cornucópia, com pico desta fenofase no bimestre março/abril, que corresponde ao final da estação chuvosa. As flores estão reunidas em cimeiras que apresentam eixo principal desenvolvido, expondo as flores acima da folhagem. As flores são raso-campanuladas, azuis, inodoras e secretam pequenas quantidades de néctar. A antese é diurna, ocorrendo por volta da 5:30h., e a duração das flores é de aproximadamente nove horas, podendo ser consideradas como efêmeras. Abelhas Apidae e Halictidae são os visitantes mais frequentes. Apis mellifera e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral biology; Reproductive system; Jacquemontia multiflora. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000100004 |
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| Vitali,Maria de Jesus; Dutra,João Clovis Stanzani; Machado,Vera Lígia Letízio. |
| A study of the reproductive biology of B. chinensis (L.) DC. (Iridaceae) was realized comprising floral biology and breeding systems. The floral biology studies included analyses of nectar production, occurence of osmophores, corolla pigments, ultraviolet reflexion and absortion patterns, viability of pollen, pollinators and flower visitors. The breeding systems were studied taking into account the results of manual pollinators tests. B. chinensis is self-compatible bul cross-pollination is more frequent. The effective pollinators are Plebeia droryana (Friese, 1906) (45,7%), Trigona spinipes (Fabricius, 1793) (27,3%), Tetragonisca angustula (Latreille, 1811) (9,3%). Others insects visitors are considered nectar and pollen thieves. The flowering begins... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Belamcanda chinensis; Pollination; Insect visitors; Floral biology; Reproductive biology. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000200003 |
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| Gottsberger,Gerhard. |
| Flowers of Annonaceae are characterized by fleshy petals, many stamens with hard connective shields and numerous carpels with sessile stigmas often covered by sticky secretions. The petals of many representatives during anthesis form a closed pollination chamber. Protogynous dichogamy with strong scent emissions especially during the pistillate stage is a character of nearly all species. Scent emissions can be enhanced by thermogenesis. The prevailing reproductive system in the family seems to be self-compatibility. The basal genus Anaxagorea besides exhibiting several ancestral morphological characters has also many characters which reappear in other genera. Strong fruit-like scents consisting of fruit-esters and alcohols mainly attract small... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral biology; Pollination; Cantharophily; Dichogamy. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500004 |
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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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| 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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| 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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| Lage,Laís Alves; Krause,Willian; Silva,Celice Alexandre; Dias,Daianny Correia; Ambrósio,Moisés; Cobra,Simone Santos de Oliveira. |
| Abstract This study aimed to provide information on the biology and floral resources, stigmatic receptivity and viability of pollen grains during rainy season and dry season, and to evaluate the efficiency of natural and artificial pollination on quality of fruits of eight passion fruit cultivars sourced in Tangará da Serra - MT. Five commercial cultivars and three populations of the genetic improvement program of the sour passion fruit from the Universidade do Estado de Mato Grosso were evaluated. The climatic conditions of the rainy season favored the greater development of the floral pieces. The sugar concentration in the nectar presented higher averages in the rainy season, in all cultivars, except for FB 200. The climatic conditions of the dry season... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral biology; Climate; Passiflora edulis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300601 |
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| Maués,Márcia Motta; Oliveira,Paulo Eugênio A. M. de; Kanashiro,Milton. |
| Jacaranda copaia (Aubl.) D. Don is a pioneer tree widespread in the Brazilian Amazon, usually found colonizing forest gaps and altered areas, and the forest fragment edges. This study investigated aspects of the floral biology, breeding system and pollinators of J. copaia trees. Flowering lasts from August to November, during the low rainfall period extending up to four weeks per tree and 3-4 months for the population as a whole, characterizing a cornucopia flowering pattern. The fruit set ends in the beginning of the rainy season, with wind dispersed winged seeds. Fruit set from open pollination was 1.06% (n = 6,932). Hand pollination using self-pollen (n = 2,099) did not set fruits. Cross-pollination resulted in 6.54% fruit set (n = 2,524), representing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bees; Floral biology; Late-acting self-incompatibility (LSI); Phenology; Pollinators. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300015 |
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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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| BARROS,MARILUZA GRANJA. |
| The pollination ecology and breeding systems of Tabebuia aurea (Manso) Benth. & Hook., and T. ochracea (Cham.) Standl. were investigated in an area of cerrado vegetation in the Federal District of Brazil. These species occur sympatrically, flower massively and synchronously for a month, during the dry season (July to September). Both have diurnal anthesis, with similar floral structures, a yellow tubular corolla and produce nectar. Fourteen species of bees visited both Tabebuia species, but, only three Centris species and Bombus morio, were considered potential pollinators, because of their high frequency on the flowers and their efficiency in carrying pollen. Tests on the breeding systems of T. aurea and T. ochracea demonstrated that boths species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding systems; Floral biology; Synchrony of flowering. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300003 |
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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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| Registros recuperados: 28 | |
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