Substratos para o cultivo de orquídeas epífitas

Faria, Ricardo Tadeu de; Stegani, Vanessa; Bertoncelli, Douglas Junior; Alves, Guilherme Augusto Cito; Assis, Adriane Marinho de

doi:10.5433/1679-0359.2018v39n6p2851

Cited by 16 publications

(13 citation statements)

References 34 publications

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“…O fato das mudas produzidas com a casca de café carbonizada apresentarem menor crescimento nas características de crescimento avaliadas podem estar relacionados aos efeitos alelopáticos de substâncias presentes na casca desse resíduo (SHEMEKITE et al, 2014;FARIA et al, 2018). A cafeína é um composto termoestável que não se degrada facilmente com o aumento da temperatura, o que torna provável a presença de fração residual desta substância nos substratos, mesmo após a carbonização da casca de café (DE LA CRUZ-MARTORELL et al, 2019).…”

Section: Discussionunclassified

“…O substrato utilizado para a produção de mudas influencia o preço final e a qualidade, por isso, recomenda-se utilizar substratos renováveis, de baixo custo, alta eficiência e fácil acesso (FARIA et al, 2013). Existem diversos materiais que podem ser adotados para a composição dos substratos, dentre os mais comuns, citam-se a terra de subsolo, vermiculita, areia, composto orgânico, esterco bovino curtido e casca de arroz carbonizada (FARIA et al, 2018).…”

Section: Introductionunclassified

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A Compostagem Da Casca De Café Carbonizada Favorece a Produção De Mudas De Ingá

Faria¹,

Pinto²,

Gonçalves³

et al. 2020

NAT

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O presente estudo teve como objetivo avaliar a casca de café carbonizada e decomposta como componente do substrato para a produção de mudas de Inga vera Willd subsp. affinis (DC). T.D. Penn. por meio da avaliação da sobrevivência e das características morfológicas de crescimento. O experimento foi conduzido em tubetes de 110 cm³, sendo instalado em um delineamento inteiramente casualizado, constituindo sete tratamentos, com cinco repetições de oito mudas por parcela. Após 180 dias da semeadura, avaliaram-se a sobrevivência e a altura das mudas, diâmetro do coleto, relação altura/diâmetro do coleto, matéria seca da parte aérea, matéria seca do sistema radicular, matéria seca total, relação matéria seca da parte aérea/raiz, e o Índice de Qualidade de Dickson (IQD). Por meio dos resultados obtidos, constatou-se que a compostagem da casca de café carbonizada melhorou significativamente a qualidade das mudas de Inga vera subsp. affinis, sendo que o substrato contendo este componente resultou nas melhores respostas para a sobrevivência e para a maioria dos parâmetros de qualidade avaliados. Novos estudos são recomendados para se conhecer melhor os efeitos deste componente renovável para a produção de mudas.Palavras-chave: Inga vera subsp. affinis; substrato renovável; compostagem; qualidade de mudas; mudas florestais. CARBONIZED AND DECOMPOSED COFFEE HUSK AS SUBSTRATE COMPONENT FOR INGÁ SEEDLING PRODUCTION ABSTRACT: The aim of this study was to evaluate the carbonized and decomposed coffee husk in the seedling production of Inga vera Willd subsp. affinis (DC). T. D. Penn by assessing the survival and growth. The experiment was conducted in recipient of 110 cm³, being installed in a completely randomized design consisting of seven treatments with five replications of eight seedlings per plot. After 180 days, the survival rate, plant height, stem diameter, ratio between plant height and stem diameter, shoot dry mass, dry mass of root system, total dry mass, dry mass ratio of shoot/root dry mass and Dickson Quality Index (IQD) were evaluated. The composting of the carbonized coffee husk improved the quality of Inga vera subsp. affinis seedlings; and the substrate with proportions of this component resulted in the best responses for survival and most of the quality parameters evaluated. Further studies are recommended to better understand the effects of this component for the seedling production.Keywords: Inga vera subsp. affinis; renewable substrate; composting; seedling quality; forest seedlings.

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Section: Discussionunclassified

Section: Introductionunclassified

A Compostagem Da Casca De Café Carbonizada Favorece a Produção De Mudas De Ingá

Faria¹,

Pinto²,

Gonçalves³

et al. 2020

NAT

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“…A adubação foi feita trimestralmente, por meio de fertirrigação, com a formulação NPK (10-30-20), na dose de 1 g L -1 (FARIA et al, 2010). A irrigação por aspersão foi feita no período da manhã durante cinco minutos.…”

Section: Methodsunclassified

Reguladores de crescimento na redução do porte da orquídea Estrela-de-Fogo para comercialização em vaso

Carvalho

Faria

Wanderley

et al. 2016

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Fire-of-star (Epidendrum radicans Pav. ex Lindl.) is a terrestrial orchid, native to Brazil, tussocks with leafy stems, always with many adventitious roots, releasing its long inflorescence with about 1.0 m from the apex of the stem, showing great potential in floriculture, but long flowering stem complicates their marketing vase. The objective of this study was to evaluate the effect of paclobutrazol (PBZ) and mepiquat chloride (CLM) the reduction of the size of the orchid E. radicans. Plants with an average height of 15 cm were cultivated in a greenhouse with 50% shading. The growth regulators used were PBZ at doses of 0; 5; 10; 15 and 20 mg L-1, and the CLM at doses of 0; 1; 2; 3; 4 and 5 mg L-1. The frequency of application was fortnightly, totaling ten applications. The experiment was installed on a randomized complete blocks, one block to the PBZ with 5 treatments and 10 replications and another block to the CLM, with 6 treatments and 10 replications. Data were submitted to analysis of variance at 5% probability and significance when seen performed regression analysis. The variables evaluated were number shoots, plant height (cm), number of flower stems and leaf area. The results indicated that E. radicans treated with 5 mg L-1 PBZ were 50% lower in height than the control plants. When CLM treated with a dose of 1 mg L-1 plants were 25% lower in height than the control plants, maintaining its aesthetic characteristics suitable for marketing in vases. Growth regulators in the applied doses did not affect the number of shoots and flower stems. PBZ treated plants had 50% of their leaf area compared to control while those treated with CLM doses remained with the same average leaf area of control.

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“…For orchid cultivation, the substrate structure should show little change during the plant growing time in a pot, and its fragmentation, due to the decomposition, is undesirable because it forms a compact assembly, which can cause loss in the porosity necessary for the aeration of the plant's roots. It is also important that the substrate meets some chemical and nutritional requirements; for example, pH should be adequate, thus avoiding nutrient unavailability and nutritional imbalance (Faria et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Vegetative development and flowering of Encyclia hybrid based on fertilization and substrate

et al. 2021

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Due to the fact that the western region of Paraná is considered subtropical, with high temperatures in the summer, the hybrids of Encyclia are commercialized by the beauty of its flowers and durability. However, there are no studies involving potted plants, substrate types and fertilizers, as well as hybrids, for the genus Encyclia. Thus, the objective of this work was to evaluate the vegetative development and flowering of Encyclia based on fertilization and substrate. The experiment was conducted in a commercial orchard, from January to September/2017. The seedlings remained in a protected environment, with 50% shading. The experimental design was randomized blocks, in a 4 x 5 factorial scheme (substrates x fertilization intervals), with 4 replicates per treatment, and 4 pots per replicate. The lot chosen was sowed in vitro, with the hybrid Encyclia “Kropp” x E. atropurpurea. After five months of the last fertilization, the evaluations related to vegetative development and flowering were carried out. Substrates based on sphagnum presented better results in flowering. Organic fertilizations with Bokashi at 45 days after transplant (DAT) favor flowering and vegetative development of the Encyclia hybrid, which occurs in pots containing sphagnum-based substrates and with organic fertilizers above 60 DAT.

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Substratos para o cultivo de orquídeas epífitas

Cited by 16 publications

References 34 publications

A Compostagem Da Casca De Café Carbonizada Favorece a Produção De Mudas De Ingá

A Compostagem Da Casca De Café Carbonizada Favorece a Produção De Mudas De Ingá

Reguladores de crescimento na redução do porte da orquídea Estrela-de-Fogo para comercialização em vaso

Vegetative development and flowering of Encyclia hybrid based on fertilization and substrate

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