Micrometeorological Characterization of Protected Environments for Plant Production

Silva, Abimael Gomes da; Costa, Edílson; Zóz, Tiago; Binotti, Flávio Ferreira da Silva

doi:10.32404/rean.v8i4.6177

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…Há evidências de que o uso de cobertura com filme plástico ou com telados sobre cultivos agrícolas promovem modificações no microclima do ambiente, especialmente devido as alterações na transmissividade da radiação solar. (FERREIRA et al, 2004;LULU;PEDRO JR., 2006;PEDRO JR. et al, 2011;PAULA et al, 2017;SILVA et al, 2021).…”

Section: Introductionunclassified

“…O uso de coberturas sobre os cultivos permite proteção às plantas, por exemplo, contra alta intensidade de radiação solar durante todo o seu crescimento. Contudo, mudanças de temperatura, umidade relativa do ar e radiação solar (FERREIRA et al, v.21 n.3 2022(FERREIRA et al, v.21 n.3 2004PAULA et al, 2017;SILVA et al, 2021) podem alterar a composição e a qualidade do fruto. (SCHIEDECK et al, 1999;REIS et al, 2012).…”

Section: Introductionunclassified

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Alterações micrometeorológicas com uso de cobertura plástica em cultivo de videira ‘Niágara rosada’

Schöffel¹,

Borges²,

Novelini³

et al. 2022

Revista Thema

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Cultivos protegidos são alternativas diante da sazonalidade e adversidades climáticas. Estudos que avaliem diferentes ambientes de cultivo são importantes para compreender os processos adaptativos das espécies. O trabalho teve como objetivo determinar variações na radiação solar e na temperatura do ar ocasionadas pelo uso de cobertura plástica em cultivo de videira ‘Niágara rosada’. O experimento foi realizado numa propriedade familiar, por duas safras, em um ambiente com cobertura plástica impermeável e em outro ambiente sem cobertura, cultivados com videira no sistema de condução latada. Na safra 2014/15, com baixa nebulosidade, a radiação solar global média foi de 22,4 MJ m-2 dia-1, no ambiente sem cobertura, e de 14,4 MJ m-2 dia-1, no ambiente com cobertura plástica. Na safra 2015/16, com grande nebulosidade, a radiação solar global foi de 12,9 e de 8,9 MJ m-2 dia-1, nos ambientes sem e com cobertura plástica, respectivamente. As temperaturas mínimas do ar não foram afetadas pela cobertura plástica e as temperaturas médias e máximas foram maiores no ambiente coberto. Acima do dossel, as temperaturas médias do ar foram acrescidas em mais de 2,0 °C e as temperaturas máximas em mais de 8,6 °C. Palavras-chave: Microclima; plasticultura; uva de mesa; elementos meteorológicos.

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Section: Introductionunclassified

Alterações micrometeorológicas com uso de cobertura plástica em cultivo de videira ‘Niágara rosada’

Schöffel¹,

Borges²,

Novelini³

et al. 2022

Revista Thema

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Influence of Different Protected Environments and Reflector Material on Cultivated Oiti (Licania tomentosa[Benth.] Fritsch) Seedlings

Alves

Silva

Costa

et al. 2023

isa

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Background Oiti (Licania tomentosa[Benth.] Fritsch) is an option for urban forestation and rural environments that require shading by plants, so studying the plant environment to obtain quality seedlings is essential. The present study aimed to evaluate oiti seedlings in different protected environments with or without reflective material on a cultivation bench. Methods The following protected environments were evaluated: an agricultural greenhouse covered with a low-density polyethylene film and a thermo-reflective screen with 42%/50% shading under the film; an agricultural screenhouse with an aluminized screen with 35% shading; an agricultural screenhouse with a black screen with 30% shading; and an agricultural screenhouse with a black screen with 18% shading. Production systems with and without photosynthetically active radiation-reflecting material (aluminized screen, Aluminet®) on the cultivation bench were assessed in each protected environment. Results There was no interaction between the environmental factors; however, the environments influenced height, stem diameter, root dry matter, and total biometric relationships and growth rates. The reflective material did not improve the quality of oiti seedlings. The ratio of shoot and root dry matter was, on average, 71% for the shoots and 29% for the roots. The photosynthetically active radiation received by oiti seedlings ranged from 600 to 1,100 μmol m−2s−1. Conclusions The greenhouse with 42%/50% shading screen under the film and the black screen with 30% shading were the best environments for the formation ofLicania tomentosaseedlings. The reflective material on the cultivation bench did not result in better quality oiti seedlings.

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Silicon Mitigates the Attack of Pests and Diseases on Ipê-Roxo (Handroanthus impetiginosus) Seedlings

da Silva,

da Costa Vieira,

Serafim

et al. 2024

isa

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Background Silicon in plants is a structuring element that promotes water and saline stress tolerance and decreases transpiration. The silica accumulated in the cuticle establishes a physical barrier and helps fight against pests and diseases. The present study aimed to evaluate the development of ipê-roxo (Handroanthus impetiginosus) seedlings in different environments, and the application of potassium silicate and its efficiency in mitigating the attack of pests and diseases. Methods The experiment was carried out in an agricultural greenhouse and under full sun with silicic doses of 0 and 7.15 mg per plant in a completely randomized design arranged in a 2 × 2 factorial scheme, with 6 replications of 4 seedlings per plot. Plant height, chlorophyll, stem diameter, number of leaves, shoot dry matter, root dry matter, total dry matter, height-diameter ratio, root-shoot ratio, root-plant ratio, Dickson quality index, disease severity, and pest intensity were evaluated. Results Silicon application did not confer biometric qualities to the seedlings. The application of silicon conferred 24.6% higher protection against disease severity at a 90% probability level. The protected environment promoted 48.8% more protection against the attack of pests on the seedlings. The silicon application decreases the intensity of pests in the protected environment by 36.3%. Seedlings in a protected environment increase the production of chlorophyll but are 29.6% more susceptible to the severity of diseases. The full sun promoted greater diameters, phytomass, and Dickson quality index by 18%, 73%, and 195%, respectively. Conclusions The bestHandroanthus impetiginosusseedlings were obtained under full sun. Silicon mitigated the attack of pests and diseases onHandroanthus impetiginosusseedlings.

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Micrometeorological Characterization of Protected Environments for Plant Production

Cited by 3 publications

References 29 publications

Alterações micrometeorológicas com uso de cobertura plástica em cultivo de videira ‘Niágara rosada’

Alterações micrometeorológicas com uso de cobertura plástica em cultivo de videira ‘Niágara rosada’

Influence of Different Protected Environments and Reflector Material on Cultivated Oiti (Licania tomentosa[Benth.] Fritsch) Seedlings

Silicon Mitigates the Attack of Pests and Diseases on Ipê-Roxo (Handroanthus impetiginosus) Seedlings

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