Pollinators
Mostrando 1-12 de 180 artigos, teses e dissertações.
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1. Aspects of the reproductive biology of Zingiber spectabile (Zingiberaceae)
ABSTRACT Ginger (Zingiber spectabile) is cultivated worldwide as a floriculture and landscaping species. Studies on the biology and floral morphology of this species are important for its improvement; however, they are scarce. We investigated the reproductive biology and floral morphology of gingers grown in a germplasm bank. Floral development was monitored
Rev. Ceres. Publicado em: 2021-04
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2. Distant populations of a Xanthosoma (Araceae) species have different floral scents but the same cyclocephaline beetle pollinators
ABSTRACT We report on the reproductive biology, pollinators, and thermogenesis of the widely distributed Araceae species, Xanthosoma striatipes. We analyzed the floral scent in one population and compared it to a previous study. Xanthosoma striatipes was studied at three sites in Brazil, São Paulo, Minas Gerais and Maranhão. The results showed constancy of
Acta Bot. Bras.. Publicado em: 2020-09
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3. Can plant hybridization and polyploidy lead to pollinator shift?
ABSTRACT Events of both hybridization and polyploidy are capable of completely restructuring the genome, modifying phenotypic traits and affecting ecological interactions. For plants, these changes may affect floral traits that are important for interactions with pollinators, which could lead to shifts in pollinator behavior and taxa between hybrids/polyploi
Acta Bot. Bras.. Publicado em: 2020-06
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4. Pollination biology of the endangered columnar cactus Cipocereus crassisepalus: a case of close relationship between plant and pollinator
ABSTRACT The family Cactaceae possesses considerable floral diversity and is exclusively zoophilic. Cipocereus crassisepalus is an endangered species of columnar cactus, whose floral characteristics fit the chiropterophily syndrome. This study aimed to assess the correspondence between floral traits and pollinators and whether the pollination system of C. cr
Acta Bot. Bras.. Publicado em: 2020-03
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5. Effects of Herbicides on the Survival of the Brazilian Native Bee Melipona scutellaris Latreille, 1811 (Hymenoptera: Apidae)
RESUMO: As abelhas nativas são polinizadores-chave para plantas nativas e cultivadas. Compreender os efeitos dos produtos utilizados nas culturas sobre as abelhas é crucial e pode ajudar a estabelecer medidas de manejo que ofereçam mais proteção. O objetivo deste estudo foi avaliar a influência de metade da dose comercial, da dose comercial (2,4-D 1.00
Planta daninha. Publicado em: 02/12/2019
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6. A literature review of the pollination strategies and breeding systems in Oncidiinae orchids
ABSTRACT Oncidiinae is an exclusively Neotropical orchid subtribe with about 1600 described species and an impressive array of vegetative and floral morphological adaptations. We present the results of a literature survey on the pollination strategies and breeding systems of this orchid subtribe. The flowers are pollinated by a wide range of insects (mostly
Acta Bot. Bras.. Publicado em: 25/11/2019
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7. Entomofauna and potential pollinators of strawberry crop under semi-hydroponic conditions
RESUMO O cultivo do morangueiro no sistema semi-hidropônico tem aumentado na região Sul do Brasil por facilitar o manejo, além de evitar adversidades climáticas, pragas e doenças. Contudo, nesse sistema, o ambiente protegido pode dificultar o acesso de insetos polinizadores, fundamentais para a produtividade da cultura. Assim, este trabalho teve como ob
Hortic. Bras.. Publicado em: 07/11/2019
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8. Floral biology, pollination requirements and behavior of floral visitors in two species of pitaya
RESUMO O presente trabalho objetivou estudar a biologia floral, os requerimentos de polinização e o comportamento de visitantes florais em duas espécies de pitaia, Hylocereus undatus e H. polyrhizus no Nordeste do Brasil. O experimento foi conduzido com observações diurnas e noturnas e pelo uso de flores ensacadas ou acessíveis aos visitantes. Os resul
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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9. Bees biodiversity, forage behavior and fruit production in gherkin crop (Cucumis anguria L.)
ABSTRACT. The objectives were to evaluate the biodiversity of bees, forage behavior and their effect on fruit production in the gherkin crop (Cucumis anguria L.) in the campus of the University Center Moura Lacerda in two years. The frequency and type of collection of the insects in the flowers was observed by counting from 8:00 a.m. to 5:00 p.m., in the fir
Acta Sci., Anim. Sci.. Publicado em: 24/10/2019
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10. Species boundary and extensive hybridization and introgression in Petunia
ABSTRACT Studying the role of hybridization in the speciation of plants is one of the most thrilling areas of evolutionary biology. Hybridization in natural populations can act in opposition to divergence, contribute to adaptation through introgression or foster the emergence of new lineages via hybrid speciation. Species of the plant genus Petunia grow in o
Acta Bot. Bras.. Publicado em: 07/10/2019
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11. Special offer while stocks last: high-energy pulse of nectar caused by a massive post-fire flowering of Sinningia elatior (Gesneriaceae) in an area of Cerrado and implications for its pollination
Resumo A intensa floração pós-fogo de Sinningia elatior (Gesneriaceae) foi estudada em uma área de Cerrado. Para estudar o sistema reprodutivo, testes de polinização foram realizados no campo. Espécimes de S. elatior foram encontrados isolados ou agrupados na área de estudo, as flores são tubulares, alaranjadas/avermelhadas e desprovidas de odor. Ap
Rodriguésia. Publicado em: 03/10/2019
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12. Native bee fauna of tomato crops: a comparison of active sampling and pan trapping methods
RESUMO O tomate é amplamente cultivado em todo o mundo e requer polinização por abelhas nativas ou manejadas para realizar o pleno potencial de produção dos frutos. Para investigar a riqueza e abundância de espécies de abelhas nativas em plantações de tomate do Centro-Oeste do Brasil, dois métodos de amostragem (armadilhas pan-trap e amostragem ati
Iheringia, Sér. Zool.. Publicado em: 09/09/2019