Produção de mudas de melancia em diferentes ambientes e de frutos a campo

Oliveira, Anne Mellisse Diaz; Costa, Edílson; Rego, Norton Hayd; Luqui, Lais de Lima; Kusano, Daniel Makoto; Oliveira, Elisa Pereira de

doi:10.1590/0034-737x201562010011

Cited by 15 publications

(19 citation statements)

References 10 publications

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“…There were no significant differences between shading conditions for the other doses. These results agreed with Oliveira et al (2015a) 'Crimson Sweet' watermelon seedlings tend to etiolate when shaded, but this was dependent on the type of material used.…”

Section: Resultssupporting

confidence: 82%

“…After evaluating the production of 'Crimson Sweet' watermelon seedlings in different environments, Oliveira et al (2015a) reported that the dry weight shoot ratios were higher when the plants were shaded with a black net (Sombrite ® ). However, Henrique et al (2011) found that the color of the nets did not affect the root dry weights of coffee seedlings.…”

Section: Revmentioning

confidence: 99%

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Watermelon Initial Growth Under Different Hydrogel Concentrations and Shading Conditions

et al. 2019

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Watermelon (Citrullus lanatus) belongs to the plant family Cucurbitaceae. It is cultivated in many regions of Brazil, particularly in rainfed areas; thus, it is subject to the problems arising from irregular rainfall. Hydrogel is a soil conditioner used to retain and provide water to plants for long periods of time. Therefore, incorporating hydrogel into the soil should increase water availability for watermelon cultivation, and may be an alternative method to reduce the risk of water deficit. This study evaluated the effect of different concentrations of hydrogel on the initial growth of watermelon cv. 'Crimson Sweet' under different shading conditions. The experiment was carried out in a greenhouse with completely randomized design with a 4×3 factorial scheme. The treatments consisted of four hydrogel doses (0.0; 1.5; 3.0; and 6.0 g L-1 substrate), three shading conditions (under full sun; black shade net, and red shade net, both with 50% shading), and five replicates per treatment. The variables evaluated were plant height; stem diameter; shoot, root, and total dry matter; and leaf area. The best hydrogel dose for watermelon cultivation was 1.5 g L-1, but the higher doses impaired plant growth, regardless of shading conditions. The black net improved biomass accumulation in 'Crimson Sweet' watermelon, whereas the red net induced plant etiolation.

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Section: Resultssupporting

confidence: 82%

Section: Revmentioning

confidence: 99%

Watermelon Initial Growth Under Different Hydrogel Concentrations and Shading Conditions

et al. 2019

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“…The Dickson quality index (DQI) is an important index, being a well-considered morphological measure, and can be a good indicator of seedling quality, since it considers the robustness and the balance of the seedling biomass distribution, with adjustment of several parameters considered important; the higher the QDI, the better the seedling quality (Oliveira et al, 2015). In this work, the QDI presented a higher value in the plants grown under the black screen, differing from the other treatments.…”

Section: Resultsmentioning

confidence: 79%

Initial growth of sweet pepper in different substrates and light environments

et al. 2017

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The aim of this work was to evaluate the initial growth of sweet pepper in different substrates and light environments. The experiment was conducted at the Federal University of Recôncavo da Bahia, in the municipality of Cruz das Almas, BA. The sowing was performed directly in 12 x 20 cm polyethylene bags and the design was completely randomized, in a 4x4 factorial scheme, with 4 replications. The substrates were: CC (commercial compound), SCC (soil (50%) + commercial compound (50%)), SV (soil (50%) + vermiculite (50%)) and SVH (soil (50%) + vermiculite (25%) + earthworm humus (25%)); and light environments: red ChromatiNet®, thermo-reflective screen (Aluminet®) and black screen (all with 50% shading) and full sun. The red screen provided higher values of height, stem dry mass, number of leaves, leaf area ratio, specific leaf area of sweet pepper seedlings; the black screen, in turn, provided higher values of root volume, leaf dry mass, stem diameter, total dry mass, root dry mass, Dickson quality index and leaf area. The quality of the seedlings produced on substrates CC and SCC was superior than that of seedlings grown on substrates SV and SVH. The treatments with screens and substrates CC and SCC favored the growth of sweet pepper seedlings.Additional keywords: Capsicum annuum L.; luminosity; shading screens. ResumoO objetivo deste trabalho foi avaliar o crescimento inicial do pimentão em diferentes substratos e ambientes de luz. O experimento foi conduzido na Universidade Federal do Recôncavo da Bahia, no município de Cruz das Almas-BA. A semeadura foi realizada diretamente em sacos de polietileno com 12 x 20 cm, foi utilizado o delineamento inteiramente casualizado, em esquema fatorial 4x4, com 4 repetições. Os substratos utilizados foram: CC (substrato comercial), substrato SCC (solo (50%) + substrato comercial (50%)), SV (solo (50%) + vermiculita (50%)) e SVH (solo (50%) + vermiculita (25%) + húmus de minhoca (25%)) e os ambientes de luz: malha vermelha ChromatiNet®, termorrefletora Aluminet® e preta (todas com 50% de sombreamento) e pleno sol. A malha vermelha proporcionou maiores valores de altura, massa seca do caule, número de folhas, razão de área foliar, área foliar específica das mudas de pimentão; já a malha preta proporcionou maiores valores de volume de raiz, massa seca da folha, diâmetro do caule, massa seca total, massa seca de raiz, índice de qualidade de Dickson e área foliar. A qualidade das mudas produzidas nos substratos CC e SCC foi melhor do que quando cultivadas nos substratos SV e SVH. Os tratamentos com malhas e os substratos CC e SCC favoreceram o crescimento das mudas de pimentão.Palavras-chave adicionais: Capsicum annuum L.; luminosidade; telas de sombreamento.

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“…O Índice de qualidade de Dickson (IQD) é um bom indicador de qualidade de mudas de melancia, pois considera diversas características da muda, especialmente as produções de biomassa (MSPA, MSSR e MST) (OLIVEIRA et al (2015).…”

Section: Resultsunclassified

Substratos E Níveis De Reposição De Água Na Produção De Mudas De Melancia

Lima

Alves

Silva

et al. 2017

RBAI

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RESUMOA melancia é uma das hortaliças mais consumidas e produzidas no Brasil. Assim sendo, objetivou -se avaliar diferentes substratos e níveis de água disponíveis na produção de mudas de melancia. O experimento foi conduzido no período de junho a agosto de 2016, numa estufa agrícola, adotando-se o sistema DIC, com arranjo fatorial 7x2, sendo sete substratos S1 = 100% solo, S2 = 75% solo +25% esterco bovino; S3 = 75% solo + 25% húmus; S4 = 50% solo + 50 % E. B.; S5 = 50% solo + 50% húmus; S6 = 25 % solo + 75% E. B.; S7 = 25% solo + 75% húmus, e dois níveis de água no substrato: 50 e 100% da água disponível do substrato, com 4 repetições, totalizando 56 unidades experimentais. As melhores mudas formaram -se nos substratos contendo 75% de matéria orgânica e 25% de solo, sendo o esterco bovino o substrato mais eficiente na retenção e uso da água em comparação aos húmus de minhoca. A redução de 100% para 50% de água disponível no substrato reduziu a produção de mudas. As plantas submetidas a déficit hídrico (50% água disponível no substrato) apresentaram melhor eficiência do uso da água em comparação com aquelas formadas com 100% de água disponível. Palavras-chaves:Citrulluslunatus, estresse hídrico, insumos orgânicos.

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Produção de mudas de melancia em diferentes ambientes e de frutos a campo

Cited by 15 publications

References 10 publications

Watermelon Initial Growth Under Different Hydrogel Concentrations and Shading Conditions

Watermelon Initial Growth Under Different Hydrogel Concentrations and Shading Conditions

Initial growth of sweet pepper in different substrates and light environments

Substratos E Níveis De Reposição De Água Na Produção De Mudas De Melancia

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