Acúmulo de nutrientes em gérbera de vaso em função de fontes e doses de potássio

Guerrero, Amaralina Celoto; Fernandes, Dirceu Maximino; Ludwig, Fernanda

doi:10.1590/s0102-05362012000200004

Cited by 16 publications

(14 citation statements)

References 5 publications

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“…The most recent studies examining the role of Si have been performed in flowers with post-harvest and production, such as calla (Almeida et al 2009), rose (Locarno et al 2011), gerbera (Guerrero et al 2012), chrysanthemum (Carvalho-Zanao et al 2012, Sivanesan et al 2013) and ornamental sunflower , Oliveira et al 2013). The only work examining the role of Si in ornamental plants grown in vitro has been performed in orchids , Soares et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Morphological and physiological characteristics in vitro anthurium plantlets exposed to silicon

Dias

Soares

Ribeiro³

et al. 2017

Crop Breed. Appl. Biotechnol.

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Section: Introductionmentioning

confidence: 99%

Morphological and physiological characteristics in vitro anthurium plantlets exposed to silicon

Dias

Soares

Ribeiro³

et al. 2017

Crop Breed. Appl. Biotechnol.

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“…It's a plant with good durability, resistance to transport and high appreciation by consumers. However, despite the expansion of commercial production of flowers and ornamental plants, research has not been conducted at the same rhythm, especially with regard to nutrition and fertilization (Guerrero et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Portable meters for nutritional assessment in plants of gerbera fertigated with electrical conductivity levels

Mota¹,

Bôas

Ludwig

et al. 2014

Rev. bras. eng. agríc. ambient.

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A B S T R A C TRapid tests to assess the nutritional status of plants gerbera can make easier the decision of any adjustments in the fertilization of the substrate. The study was conducted to evaluate nutritionally fertigated gerbera plants with increasing levels of electrical conductivity (EC), using portable meters nitrate and potassium, and chlorophyll. For this, two experiments were conducted. A randomized block design with five levels of EC (0.5, 2.0, 3.5, 5.0 and 6.5 dS m -1 ) and four replications was used. Cherry cultivar was used in the first experiment. In the second experiment, two cultivars (Cherry and Salmon Rose) were used. In the first experiment, the sap of the leaves was subjected to rapid testing of N-NO 3 -(equipment Cardy Horiba C -141). N-NO 3 -and K + (C-131) were determined in the substrate solution. The intensity of the green leaf, in the second experiment was evaluated with portable Chlorophyll Meter. The N content in the indicator leaf in the first and N and K contents in the plant in the second experiment were determined. Rapid tests are presented as good indicators of the level of N-NO 3 -and K + in plant tissue, with the advantages of convenience and speed of determination, facilitating monitoring of fertilization of the substrate by producers and technicians.Medidores portáteis para avaliação nutricional em plantas de gérbera fertirrigada com níveis de condutividade elétrica R E S U M O Os testes rápidos para avaliação do estado nutricional de plantas de gérbera podem tornar mais fácil a decisão de eventuais ajustes na fertilização do substrato. O estudo foi conduzido com o objetivo de se avaliar, nutricionalmente, plantas de gérbera fertirrigadas com níveis crescentes de condutividade elétrica (CE), utilizando-se medidores portáteis de nitrato e potássio, além de clorofilômetro. Para isto foram realizados dois experimentos. Utilizou-se um delineamento em blocos casualizados com cinco níveis de CE (0,5; 2,0; 3,5; 5,0 e 6,5 dS m -1

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“…Amongst macronutrients, potassium is the most absorbed element by gerbera, deserving special attention, especially in the blooming stage (GUERRERO et al, 2012). Medeiros et al (2010) observed that the increase of nitrogen, despite providing an increase in the number of buds and reducing the time of their emission, caused a negative effect in terms of quality of the flowers produced; the increase of potassium, though, was benefic.…”

Section: Resultsmentioning

confidence: 99%

Sensory analysis and postharvest of potted gerbera based on fertilization

Santos

Costa

2017

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The cultivation of gerberas as cut flowers has been broadly studied. With the purpose of assess the production and visual quality of potted gerberas conducted with different fertilizations, the experiment was performed in a greenhouse located at UNIOESTE -Campus of Cascavel -Parana -Brazil. The experimental design was done in randomized blocks with four repetitions and five treatments. The treatments were defined based on the fertilization source: mineral (NPK) or organic. The organic fertilizations were obtained with the dilution of four organic composts derived from the composting process of agro-industrial wastes in water. The agro-industrial waste, used in different percentages in each treatment, were: grains pre-cleaning residues (corn meal and wheat husk); hatchery waste; flotation sludge; cellulose casing (sausage covering); solid fraction of pig slurry (Piglet Producer Unit) and truck washing; coal and ash remaining from boiler; poultry litter and sugarcane bagasse. The growth parameters were evaluated at the commercialization phase (plant height and diameter, stem height, capitulum number, and capitulum and stem diameter) and sensory analysis through trait and preference assessment tests. The use of liquid organic fertilizers are a feasible alternative to substitute conventional mineral fertilization. Farmers should observe EC values and K, Ca, Mg ratio for better quality assurance according to the results obtained in T 5 . The T 5 (Boiler remaining ash + Hatchery residue) has a larger amount of boiler remaining ash, whereas the chemical elements in mineral form are already readily available to the plants, this fact may have contributed to better visual development of plants grown in this treatment. Keywords: Liquid organic fertilizer, Gerbera jamesonii, mineral nutrition. RESUMOAnálise sensorial e pós colheita de gérbera envasada em função da adubação O cultivo de gérberas como flor de corte tem sido amplamente difundido na literatura. Com o objetivo de avaliar a produção e a qualidade visual de gérberas envazadas conduzidas com adubações diferenciadas, o experimento foi conduzido em estufa, localizada na UNIOESTE -Câmpus de Cascavel -PR. O delineamento experimental foi em blocos casualizados com quatro repetições e cinco tratamentos. Os tratamentos foram definidos em função da fonte da adubação, mineral (NPK) ou orgânica. As adubações orgânicas foram obtidas pela diluição em água de quatro compostos orgânicos provenientes do processo de compostagem de resíduos agroindustriais. Os resíduos agroindustriais, que foram utilizados em diferentes porcentagens em cada tratamento, foram: resíduos da pré-limpeza de grãos (farelo de milho e casquinha de trigo); resíduos de incubatório; lodo de flotador; tripa celulósica (invólucro de salsicha); fração sólida de dejetos de suínos (Unidade Produtora de Leitões) e da lavagem dos caminhões; carvão e cinzas remanescentes da caldeira; cama de matrizeiro e bagaço de cana. Foram avaliados os parâmetros de crescimento no ponto de comercialização (altura e diâmetr...

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Acúmulo de nutrientes em gérbera de vaso em função de fontes e doses de potássio

Cited by 16 publications

References 5 publications

Morphological and physiological characteristics in vitro anthurium plantlets exposed to silicon

Morphological and physiological characteristics in vitro anthurium plantlets exposed to silicon

Portable meters for nutritional assessment in plants of gerbera fertigated with electrical conductivity levels

Sensory analysis and postharvest of potted gerbera based on fertilization

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