Consulta: subjectFacets:"Floral biology"
Registros recuperados: 28
Data/hora: 02/06/2024 14:35:43

Stigma receptivity and anther dehiscence in ornamental pepper
Provedor de dados: 75
Autores: Crispim,Joelson Germano; Rêgo,Elizanilda R; Rêgo,Mailson M; Nascimento,Naysa Flávia F; Barroso,Priscila A.
ABSTRACT The objective of this study was to evaluate stigma receptivity and anther dehiscence in three floral development stages in F3 population of ornamental pepper (Capsicum annuum). A total of 162 plants (81 of purple corolla and 81 of white corolla) were used in this study. To analyze the stigma receptivity and anther dehiscence, three floral stages were analyzed: bud, pre-anthesis, and open flower. For each stage, 33 flowers of each phenotypic class were collected. The receptivity of the stigma was detected by dripping hydrogen peroxide solution (3%). For the evaluation of the level of receptivity, scores of 0 to 3 were assigned, varying according to the bubbles percentage found on the stigmatic surface. Scores of 1 to 5 were assigned for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Breeding; Floral biology; Pollination.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400609

A cultura do urucu no Norte do Brasil.
Provedor de dados: 14
Autores: FALESI, I. C.; KATO, O. R.
bitstream/item/58787/1/CPATU-Doc65.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Urucu; Cultivo; Sememte; Armazenagem; Propagação; Biologia floral; Bixina; Brasil; Annato; Cultivation; Floral biology; Seed; Propagation; Production; Spacing; Culting; Pole; Fertilizer.; Adubação; Bixa Orellana; Comercialização; Enraizamento; Espaçamento; Estaca; Muda; Poda; Produção; Seleção.; Amazonia; Commercialization; Pruning; Rooting; Storage.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379411

The Cannaceae of the world
Provedor de dados: 16
Autores: Maas-van de Kamer, H.; Maas, P.J.M.
This taxonomic treatment includes all Cannaceae of the world. Emphasis is on the 10 species growing in the wild in the Neotropics. Included are chapters on the history of the taxonomy of the family and genera, and on relationships of higher level taxa. Data are provided on vegetative morphology as well as on floral morphology and floral biology. Structure of the inflorescence, the ovary and ovules, fruit and seeds, germination and seedlings are treated in detail. Finally a chapter on uses and vernacular names, a bibliography, and a list of over 200 names ever used in Canna are added.
Tipo: Article / Letter to the editor
Palavras-chave: Cannaceae; Anatomy; Floral biology; History; Uses; Taxonomy worldwide; Vernacular names.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/524477

Ruellia brevifolia (Pohl) Ezcurra (Acanthaceae): fenologia da floração, biologia da polinização e reprodução
Provedor de dados: 88
Autores: SIGRIST,MARIA R.; SAZIMA,MARLIES.
A biologia reprodutiva de Ruellia brevifolia foi estudada em populações naturais do sudeste brasileiro. R. brevifolia é um subarbusto que forma agrupamentos densos em áreas abertas mas sombreadas e floresce o ano todo, produzindo flores casmógamas (CH) e cleistógamas (CL) nas estações úmida e seca, respectivamente. A cleistogamia é do tipo climática, originando sementes no período de maior estresse ambiental. Flores CH são inodoras e possuem corola tubulosa e vermelha, sendo hercogâmicas ou não; apresentam protoginia, antese diurna e duram dois dias. Néctar é o principal recurso floral, sendo produzido em baixa quantidade (5,2 mil ± 2,36) e com concentração de açúcares em torno de 30%. Flores CL assemelham-se a botões jovens de flores CH e apresentam...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floral biology; Herkogamy; Cleistogamy; Ornithophily; Psicophily.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000100006

Biologia floral de Unonopsis guatterioides (A. D.C.) R.E. Fr., uma Annonaceae polinizada por Euglossini
Provedor de dados: 88
Autores: 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

Reproductive biology of the herkogamous vine Chiococca alba (L.) Hitchc. (Rubiaceae) in the Atlantic Rain Forest, SE Brazil
Provedor de dados: 88
Autores: Castro,Cibele Cardoso de; Oliveira,Paulo Eugênio Alves Macedo de; Pimentel,Rejane Magalhães de Mendonça.
The family Rubiaceae comprises a wide spectrum of floral mechanisms and two of them seem to be common in certain groups, e.g., distyly in Rubioidae and styllar pollen in Ixoroidae. These mechanisms include herkogamy, which is interpreted as a strategy that avoids self-pollination. This is the first report on the reproductive biology of Chiococca alba, a species that is widely distributed in America. We studied floral biology and the mating system, which were evaluated through fruit set comparisons after controlled crosses (self- and cross-pollinations and test for apomixis), as well as through the evaluation of pollen tube growth resulting from these controlled crosses. Flowers of C. alba are herkogamous, cream, protandrous and lasted for two days. No...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Rain Forest; Breeding system; Chiococca; Floral biology; Herkogamy; Pollination; Rubiaceae.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000200014

Flowering and fruiting of Aulonemia aristulata: a gynomonoecious woody bamboo species from Atlantic Forest in Brazil
Provedor de dados: 88
Autores: Grombone-Guaratini,M.T.; Nascimento,A.A.; Santos-Gonçalves,A.P.
Aulonemia aristulata (Döll) McClure is a lignified bamboo species endemic to Brazil. This species occurs in southeastern forests and can reach high density at forest edges, dominating the understory of canopy-disturbed forest patches. The goal of this study was to describe the flowering period, floral biology, fruiting and seedling recruitment of A. aristulata in natural conditions in two areas located in a segment of the Atlantic Forest. Data on the morphology of the synflorescences and florets, timing and sequence of the anthesis events and floral visitors were recorded. Natural pollinators (open pollination or control) as well as spontaneous self-pollination were also checked. Pollen viability was estimated using the acetocarmine technique. Aulonemia...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Floral biology; Gregarious flowering; Gynomonoecy; Protandry; Tropical forest.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000100012

Biologia floral e sistema de reprodução de Jacquemontia multiflora (Choisy) Hallier f. (Convolvulaceae)
Provedor de dados: 88
Autores: 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

Pollination biology in Jacaranda copaia (Aubl.) D. Don. (Bignoniaceae) at the "Floresta Nacional do Tapajós", Central Amazon, Brazil
Provedor de dados: 88
Autores: 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

Biologia floral de cinco espécies de Passiflora L. (Passifloraceae) em mata semidecídua
Provedor de dados: 88
Autores: 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

Polinização e biologia floral de Clusia arrudae Planchon &amp;amp; Triana (Clusiaceae) na Serra da Calçada, município de Brumadinho, MG
Provedor de dados: 88
Autores: CARMO,ROSELAINI M.; FRANCESCHINELLI,EDIVANI V.
A biologia floral e a polinização de Clusia arrudae foi estudada na Serra da Calçada. C. arrudae não apresenta apomixia mesmo com a deposição de resina nos estigmas. Frutos desenvolvidos a partir de flores polinizadas manualmente produziram mais sementes (6,3 sementes por lóculo) do que frutos desenvolvidos a partir de flores polinizadas naturalmente (4,3 sementes por lóculo). O pico de floração ocorre de dezembro a meados de fevereiro. Plantas masculinas e femininas produzem flores diariamente; todavia, a cada três dias ocorre um pico de anteses que é sincronizado na população. A razão sexual da população é de 1:1, com plantas masculinas produzindo uma maior quantidade de flores que plantas femininas. Flores masculinas produzem cerca de 11 × 10(6) grãos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clusia arrudae; Eufriesea nigrohirta; Floral biology; Pollination.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300011

Pollination ecology of Tabebuia aurea (Manso) Benth. &amp;amp; Hook. and T. ochracea (Cham.) Standl. (Bignoniaceae) in Central Brazil cerrado vegetation
Provedor de dados: 88
Autores: BARROS,MARILUZA GRANJA.
The pollination ecology and breeding systems of Tabebuia aurea (Manso) Benth. &amp;amp; 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

STIGMATIC RECEPTIVITY AND POLLEN VIABILITY OF Theobroma subincanum Mart.:FRUIT SPECIES FROM THE AMAZON REGION
Provedor de dados: 94
Autores: ARENAS-DE-SOUZA,MAICON DOUGLAS; ROSSI,ANA APARECIDA BANDINI; VARELLA,TATIANE LEMOS; SILVEIRA,GREICIELE FARIAS DA; SOUZA,SÉRGIO ALESSANDRO MACHADO.
ABSTRACT  Theobroma subincanum (cupuí) is a fruit species native to the Amazon region. Fruits are enjoyed by local people and consumed both as fresh fruit such as juice, nectar or soft drinks. Reproductive biology studies provide contributions to conservation strategies and plant improvement. The present study aimed to analyze the stigmatic receptivity and pollen viability of T. subincanum. This study was developed in a forest fragment located in the urban perimeter of the municipality of Alta Floresta, MT. In the flowering period, flower buds or flowers were collected in seven different times, as follows: 10 pm, 02 am, 06 am, 10 am, 2 pm, 6 pm, and 10 pm. Pollen viability was estimated by reactive Alexander (1969) and stigmatic receptivity using 3%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cupui; Pollen; Fertilization; Fructification; Floral biology.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400201

Morphometry, floral resources and efficiency of natural and artificial pollination in fruit quality in cultivars of sour passion fruit
Provedor de dados: 94
Autores: 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

Evolutionary steps in the reproductive biology of Annonaceae
Provedor de dados: 94
Autores: 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

การศึกษา Floral biology และจำนวนโคโมโซมของท้อเก้าพันธุ์
Provedor de dados: 106
Autores: Umpika Poonnachit.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Peach; Clitivars; Floral biology; ท้อ; พันธุ์; จำนวนโครโมโซม; ดอก; จำนวนอับละอองเกสรตัวผู้; การเก็บละอองเกสร; ความมีชีวิต.
Ano: 1923
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5523

การศึกษาลักษณะทางชีววิทยาของดอกและจำนวนโครโมโซมของกีวีฟรุต
Provedor de dados: 106
Autores: Aussanee Paksasorn.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Actinidia chinensis; Kiwifruit; Varieties; Floral biology; Chromosome number; กีวีฟรุต; พันธุ์; ดอก; ชีววิทยาของดอก; การเจริญเติบโต; จำนวนโครโมโซม; การผสมเกสร; ละอองเกสร; อัตราความมีชีวิต; อัตราความงอก; ผลผลิต; คุณภาพ.
Ano: 1988
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5483

Entomofauna visitante de Belamcanda chinensis (L.) DC (Iridaceae) durante o período de floração
Provedor de dados: 104
Autores: 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

Reproductive biology and pollination of Aechmea distichantha Lem. (Bromeliaceae)
Provedor de dados: 39
Autores: Scrok,Gilson João; Varassin,Isabela Galarda.
Reproductive biology, including phenology, flower biology, pollination, and the reproductive system in the bromeliad Aechmea distichantha were studied in an Araucaria forest in the state of Paraná. Phenology and reproduction in terricolous plants were followed in October 2006 and May - October of 2007. Flowering peaked from June to September and fruiting was from June to October. Flower anthesis lasted one day. Flowers were pollinated the most by the hummingbird Stephanoxis lalandi and the most common butterfly visitor was Lychnuchoides ozias ozias. Nectar concentration declined during anthesis, while nectar volume was constant. Aechmea distichantha is self-compatible with 30-45% fruit formation in self-pollination tests. Sunlight influences reproduction:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding systems; Floral phenology; Floral biology; Hummingbirds; Butterflies.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000300009

Floral biology and pollination in Brazil: history and possibilities
Provedor de dados: 39
Autores: Oliveira,Paulo Eugênio; Rech,André Rodrigo.
ABSTRACT Pollination research in Brazil virtually started with Fritz Muller, whose insights supported Darwin's evolutionary theory. Pollination systems of Brazilian plants were studied mainly by travelling researchers until early last century when native or resident geneticists began to use floral biology information to deal with crop acclimatization and breeding, later applying similar experiments and techniques to investigate native plants. Bee geneticists studied common pollinators of crops, such as coffee and Citrus, and even the introduction of feral African honeybees, despite their associated problems, stimulated pollination research. Geneticists attracted Dobzhansky to Brazil, where his research on tree distribution in the Brazilian Amazon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding system; Ecological services; Floral biology; Plant conservation; Plant-animal interactions; Pollination.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300321

Pollination biology of melittophilous legume tree species in the Atlantic Forest in Southeast Brazil
Provedor de dados: 39
Autores: 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

Intrafloral phenology of Trifolium polymorphum Poir. (Leguminosae) aerial flowers and reproductive implications
Provedor de dados: 39
Autores: 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

Biologia da polinização em Lecythidaceae
Provedor de dados: 39
Autores: 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

Functional specialization and phenotypic generalization in the pollination system of an epiphytic cactus
Provedor de dados: 39
Autores: 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

Diurnal versus nocturnal pollination success in Billbergia horrida Regel (Bromeliaceae) and the first record of chiropterophily for the genus
Provedor de dados: 42
Autores: MARQUES,JUÇARA S.; TAGLIATI,MARCELA C.; FARIA,ANA PAULA G.
Billbergia horrida is endemic of the Atlantic Forest fragments in southeastern Brazil and characterized by flowers with typical traits for pollination by nocturnal animals. Although the majority of Billbergia species rely on diurnal pollination by hummingbirds, B. horrida is also visited by bats and this study evidences for the first time the occurrence of chiropterophily within the genus. The role of different groups of pollinators on the reproductive success of B. horrida was evaluated, as well as the correlation of nectar features in sustaining these animals during different periods of the day. Bats contributed to 82.1% of fruit set of B. horrida. Hummingbirds, in turn, contributed to only 10% of fruit set, and were poorly related to the reproductive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Atlantic Forest; Floral biology; Hummingbirds pollination; Reproductive success.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200835

Pollination of Pagamea duckei Standl. (Rubiaceae): a functionally dioecious species
Provedor de dados: 49
Autores: 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

Floral biology and behavior of Africanized honeybees Apis mellifera in soybean (Glycine max L. Merril)
Provedor de dados: 52
Autores: 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

Studies of the floral biology and reproductive system of Brassica napus L.(Cruciferae)
Provedor de dados: 52
Autores: 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