Orchid
Mostrando 1-12 de 114 artigos, teses e dissertações.
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1. Volatile Constituents of Floral Scents from Encyclia cordigera (Kunth) Dressler and E. randii (Barb. Rodr.) Porto & Brade (Orchidaceae)
Encyclia cordigera is native from Central America tropical region, and Encyclia randii occurs at Brazilian Amazon environment domains. Floral concentrates from both Encyclia species were extracted, analyzed by gas chromatography-mass spectrometry, and identified compounds belong to terpenoids, phenylpropanoids, and fatty acid derivatives classes. Primary con
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Self-pollination of the orchid Cycnoches haagii from Brazilian Cerrado results in albino phenotype seedlings
Resumo Cycnoches haagii é uma orquídea epífita alvo de muitos coletores, mas nenhuma referência foi encontrada na literatura sobre sua biologia reprodutiva. Assim, o objetivo deste estudo foi obter informações preliminares sobre os tipos de polinização e sua influência na viabilidade das sementes desta orquídea nativa do Cerrado brasileiro, a fim d
Ornamental Horticulture. Publicado em: 2022
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3. Asymbiotic seed germination and in vitro development of orchid Papilionanthe Miss Joaquim
Resumo As orquídeas, com sua grande variedade de espécies, são de grande importância ao comércio global de flores. Papilionanthe Miss Joaquim, conhecida como orquídea híbrida, também reconhecida como flor oficial nacional de Cingapura é uma orquídea resiliente, amante do sol, que floresce durante todo o ano. Embora uma vagem derivada de uma única
Ornamental Horticulture. Publicado em: 2022
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4. Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that
Acta Bot. Bras.. Publicado em: 2020-03
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5. 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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6. Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that
Acta Bot. Bras.. Publicado em: 11/11/2019
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7. Primary hybrid of cattleya forbesii x cattleya loddigesii, a new brazilian orchid
Abstract The hybrid of Cattleya forbesii x Cattleya loddigesii has a short stature and early flowering, a light lilac tending to white color and a labellum with a velvety purple lobe and corrugated edges. The flower lifetime lasts approximately 20 days.
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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8. Feasibility of the new method for orchid in vitro rooting using liquid and chemical sterilized culture medium under different sucrose concentration
Resumo A propagação in vitro de orquídeas é a única técnica comercial em larga escala para obtenção de plântulas saudáveis e de alta qualidade com origem clonal. O uso de novas tecnologias em sistemas de cultura de tecidos vegetais pode levar a aumentos de eficiência e redução de custos dos sistemas de micropropagação. O principal sistema de m
Ornam. Hortic.. Publicado em: 28/10/2019
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9. Morphological characterization of Coelogyne spp for germplasm conservation of orchids
ABSTRACT Orchid is one of the ornamental plant that has a high aesthetic value. Efforts to increase the quality of orchids can be done by genetic improvement through crossing. The first step to success in orchid crossing requires information on morphological characters of the prospective parents. This study aims to determine the similarity of six species of
Rev. Ceres. Publicado em: 03/10/2019
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10. Storage and in vitro germination of orchids (Orchidaceae) seeds from Atlantic Forest – Brazil
Abstract: The orchid seed banks of Atlantic Forest may be considered a key strategy for the conservation of species threatened with extinction by indiscriminate collection or habitat destruction. The aim of this study was to evaluate the seed viability, to choose the best culture medium for the asymbiotic germination and evaluate germination, after storage f
An. Acad. Bras. Ciênc.. Publicado em: 16/09/2019
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11. What are the species of phorophytes of Vanilla palmarum (Orchidaceae) in Brazil? An assessment of emblematic specificity with palm tree species
Resumo Vanilla palmarum (Orchidaceae) é uma holoepífita obrigatória, amplamente distribuída na América do Sul, e apresenta uma emblemática especificidade com palmeiras. A interação epífita-forófitos foi examinada através da análise de espécimes disponíveis na base de dados do Centro de Referência em Informação Ambiental e em herbários brasi
Rodriguésia. Publicado em: 08/08/2019
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12. In vitro culture and acclimatization of Cattleya xanthina (Orchidaceae), an endangered orchid of the Brazilian Atlantic Rainforest
Resumo Cattleya xanthina é uma orquídea neotropical endêmica da Mata Atlântica brasileira, com alto risco de extinção. Neste trabalho analisamos diferentes meios de cultura sobre o desenvolvimento de C. xanthina, e seu status de nitrogênio endógeno. Meios de cultura estudados: Knudson C (KC), Vacin & Went (VW) e Murashige & Skoog (MS), e o meio MS co
Rodriguésia. Publicado em: 25/04/2019