Substratos e intensidades de luz no cultivo de orquídea denfal

Macedo, Marichel Canazza de; Rosa, Yara Brito Chaim Jardim; Scalon, Silvana de Paula Quintão; Rosa, Edgard Jardim; Vieira, Maria do Carmo; Tatara, Mariana Bento

doi:10.1590/s0102-05362011000200006

Cited by 5 publications

(5 citation statements)

References 8 publications

(2 reference statements)

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“…However, because there has been extensive extraction of these tree ferns and to require 15-18 years to reach the ideal stage for extraction (Lorenzi & Souza 2001), they are now on the official list of endangered plant species in Brazil (Brasil 2009). Therefore, measures t o restrict the use of tree fern fiber and its derivatives have been implemented and alternative substrates have been tested (Demattê & Demattê 1996;Faria et al 2001;Macedo et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)

et al. 2013

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In nature, orchid seeds obtain the nutrients necessary for germination by degrading intracellular fungal structures formed after colonization of the embryo by mycorrhizal fungi. Protocols for asymbiotic germination of orchid seeds typically use media with high concentrations of soluble carbohydrate and minerals. However, when reintroduced into the field, seedlings obtained via asymbiotic germination have lower survival rates than do seedlings obtained via symbiotic germination. Tree fern fiber, the ideal substrate for orchid seedling acclimatization, is increasingly scarce. Here, we evaluated seed germination and protocorm development of Cyrtopodium glutiniferum Raddi cultivated in asymbiotic media (Knudson C and Murashige & Skoog) and in oatmeal agar (OA) medium inoculated with the mycorrhizal fungus Epulorhiza sp., using non-inoculated OA medium as a control. We also evaluated the performance of tree fern fiber, pine bark, eucalyptus bark, corncob and sawdust as substrates for the acclimatization of symbiotically propagated plants. We determined germination percentages, protocorm development and growth indices at 35 and 70 days of cultivation. Relative growth rates and the effects of substrates on mycorrhizal formation were calculated after 165 days of cultivation. Germination efficiency and growth indices were best when inoculated OA medium was used. Corncob and pine bark showed the highest percentages of colonized system roots. The OA medium inoculated with Epulorhiza sp. shows potential for C. glutiniferum seedling production. Corncob and pine bark are promising substitutes for tree fern fiber as substrates for the acclimatization of orchid seedlings.

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Section: Introductionmentioning

confidence: 99%

Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)

et al. 2013

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“…Los más usados y que reportan un porcentaje de sobrevivencia de las plantas aclimatadas en condiciones de invernadero mayores al 85% son la corteza de pino, el carbón vegetal y la fibra de coco, solos o en mezcla (Figura 5), materiales que fueron evaluados por Yamamoto et al (2009), Amaral et al (2010), Macedo et al (2011) Raya-Montaño et al (2011), Tejeda-Sartorius et al (2013, Bezerra et al (2019), Hoshino et al (2016) y Koene et al (2019). En especies del género Cattleya como Cattleya forbesii, Colombo et al (2017), lograron realizar evaluaciones en plantas hasta los 4 años después de trasplantadas en un sustrato a base de corteza de pino y fibra de coco, hasta la etapa de floración.…”

Section: Títulosunclassified

Revisión sistemática sobre tipos de sustratos utilizados en la propagación de orquídeas bajo invernadero

2022

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Las orquídeas son una familia de plantas que se distinguen por la complejidad, la belleza de sus flores, las interacciones ecológicas con hongos y polinizadores, por su adaptabilidad en diferentes ambientes y por su amplia diversidad. Existen más de 25 000 especies se han reportado a escala mundial, y Colombia es uno de los países que cuenta con el mayor número de especies de orquídeas: se considera que hay 4 400 especies agrupadas en 274 géneros. El aumento en la demanda comercial legal e ilegal de orquídeas como productos ornamentales ha dado como resultado un mayor interés en el desarrollo de métodos de propagación masiva no solo para su comercialización, sino para su conservación. Por ello, resulta interesante identificar cuáles son los tipos de sustratos utilizados en invernadero para la producción de orquídeas provenientes de cultivo in vitro, a través del análisis de estudios en los cuales se caracterizan los materiales utilizados de acuerdo con el porcentaje de supervivencia de las plantas en el proceso de aclimatación y endurecimiento, etapa en la cual se realiza el trasplante de laboratorio a condiciones de invernadero, así como las implicaciones que presentan a nivel de metabolismo secundario durante diferentes etapas de desarrollo.

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“…During charcoal production process, there is an excess of small pieces of this material, which has a porous structure and when mixed with other materials, such as coconut fiber, carbonized rice husk, and pine bark, increases porosity, water retention capacity, and assists in the proliferation of microorganisms beneficial to orchid development (ZANETTI et al, 2003). Macedo et al (2011) recommend the cultivation of Dendrobium phalaenopsis var. Oncidium schroederianum x Dendrobium bigibbum var.…”

Section: Charcoalmentioning

confidence: 99%

Substratos para o cultivo de orquídeas epífitas

Faria

Stegani

Bertoncelli

et al. 2018

SCA

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Orchids are among the most commercialized flowers in the market of potted plants, cut flowers, and landscaping, making necessary studies that allow the optimization of its cultivation. One of the most important aspects for success in production areas is the use of quality seedlings, which requires the use of an appropriate substrate with appropriate physical, chemical, and biological properties to the species. Thus, this review aimed to report the importance and diversity of substrates used for producing epiphytic orchids. Several substrates have been studied for the cultivation of epiphytic orchids, among which can be cited coconut fiber and powder, pine bark, coffee husk, carbonized rice husk, almond bark, sugarcane bagasse, charcoal, vermiculite, S-10 Beifort®, among others, which provided satisfactory results in the production of seedlings and development of orchid plants. Studies with the substrates are directed to the ecologically correct cultivation and the rational use of agroindustrial residues available in each region in order to reduce their volume in the environment, in addition to allowing the adequacy in production costs.

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Substratos e intensidades de luz no cultivo de orquídea denfal

Cited by 5 publications

References 8 publications

Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)

Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)

Revisión sistemática sobre tipos de sustratos utilizados en la propagación de orquídeas bajo invernadero

Substratos para o cultivo de orquídeas epífitas

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