Greenhouse
Mostrando 13-24 de 1360 artigos, teses e dissertações.
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13. Digital imaging of coffee leaves under different nitrogen concentrations applied to soil
ABSTRACT Brazil is the largest Coffea arabica L. producer and exporter in the world market. In view of the need for nitrogen fertilization, the objective of this work was to evaluate the use of digital images of coffee leaves as a function of nitrogen concentration and cultivars, as well as to evaluate the most adequate sampling of this technique to predict
Revista Ceres. Publicado em: 2022
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14. Biochar and swine wastewater: Effects on soil fertility of different textures and corn nutrition
ABSTRACT The use of organic waste in agriculture has stimulated the search for technologies that reduce environmental pollution. Among the residues are the biochar and swine wastewater (SW), which incorrectly disposed cause negative impacts, however, when combined, they can enhance agricultural production, due to the synergism between both. In this sense, th
Revista Ceres. Publicado em: 2022
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15. Estimating leaf area of basil cultivars through linear dimensions of leaves
ABSTRACT Ocimum basilicum L. (basil) is an annual herb belonging to the Lamiaceae family that has economic importance for many regions around the world. Thus, ecophysiological studies are needed to assess this species growth and dispersal. This work aimed to obtain equations from regression models that meaningfully estimate the leaf area of basil cultivars u
Revista Ceres. Publicado em: 2022
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16. Morpho-agronomic characterization and genetic divergence among pepper accessions
ABSTRACT The germplasm characterization and the analysis of genetic divergence are fundamental requirements to determine the genetic diversity available and peppers have considerable variability not most explored and quantified. Thus, the aim of this study was to characterize morphological and agronomically pepper accessions and their genetic divergence. The
Revista Ceres. Publicado em: 2022
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17. Herbicides applied in pre and post-emergence to control Chamaesyce hirta
ABSTRACT In view of the increase in the infested areas and the difficulty in controlling Chamaesyce hirta (L.) Millsp (garden spurge) there is growing interest in identifying herbicides that can be applied in pre and post-emergence, helping to reduce infestation and to provide species control. The objective of this work was to evaluate efficient alternatives
Revista Ceres. Publicado em: 2022
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18. Phenology of Solidago canadensis L. and Delphinium elatum cultivated under greenhouse conditions and association with micro-climate variables
Resumo Solidago canadensis L. Cv. Tara e Delphinium elatum híbrido White Rever são flores de verão com grande potencial agronômico. O objetivo foi estabelecer a fenologia destas espécies cultivadas em estufa, assim como determinar o tipo de correlação existente entre os elementos climáticos (umidade relativa - UR, graus-dia de desenvolvimento - GDD e
Ornamental Horticulture. Publicado em: 2022
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19. Effectiveness of fungicide seed treatment in the control of soybean seedling dampingoff caused by Rhizoctonia solani under greenhouse conditions
RESUMO Esse estudo foi desenvolvido para avaliar a eficácia do tratamento de sementes de soja com fungicidas no controle do tombamento causado por Rhizoctonia solani, em condições de casa de vegetação. O experimento foi conduzido em Dourados, MS. Sementes de soja tratadas e não tratadas com os fungicidas foram semeadas em areia previamente esterilizada
Summa Phytopathologica. Publicado em: 2022
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20. Quantification of Carbon Dioxide (CO2), Methane (CH4), and Nitrous Oxide (N2O) Using Near Infrared Spectroscopy and Multivariate Calibration in High Humidity Levels
In this work we developed a promising analytical method combining Fourier transform near-infrared (FT-NIR) spectroscopic technique and first-order multivariate calibration using partial least-squares (PLS) model to simultaneously quantify the main greenhouse gases (GHG’s): methane (CH4), carbon dioxide (CO2), nitrous oxide (N2O) and water vapor (H2O). The
Journal of the Brazilian Chemical Society. Publicado em: 2022
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21. Growth and accumulation of nutrients in papaya tree seedlings grown on organic substrates
ABSTRACT The use of organic waste for the production of plant substrates is an important environmental and economic alternative. In this perspective, we performed a work in a greenhouse, with the aim of evaluating the effect of substrates from organic waste during growth, gas exchange and accumulation of mineral elements in ‘Sunrise Solo’ papaya tree see
Rev. Ceres. Publicado em: 2021-08
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22. Growth of pitaya seedlings according to the type of substrate and the frequency of irrigation
ABSTRACT The objective of this study was to evaluate the development of pitaya cuttings in different substrates under different frequencies of irrigation. The experiment was conducted from January to May 2017 in a greenhouse at Universidade Federal Rural da Amazônia, Capitao Poço, Pará, Brazil. A completely randomized 3 × 7 factorial design with four rep
Rev. Ceres. Publicado em: 2021-08
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23. Phytopathogen resistance of phytohormone-deficient and low-sensitivity mutant tomatoes
ABSTRACT This study broadens the knowledge of plant-pathogen interactions using phytohormone-deficient and low-sensitivity mutant tomatoes. The experiment was performed under greenhouse conditions and the mutants used were provided by the HCPD laboratory, at ESALQ/USP. The hormone mutant Never ripe showed a larger final lesion size when inoculated with Botry
Rev. Ceres. Publicado em: 2021-06
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24. Selectivity and residual weed control of pre-emergent herbicides in soybean crop
ABSTRACT The use of pre-emergent herbicides is important for the current agricultural production systems that present weeds resistant to herbicides. Considering the complexity of using these products, the objective of this work was to evaluate their selectivity and residual weed control in soybean crops and their effect on the weeds Amaranthus hybridus, Bide
Rev. Ceres. Publicado em: 2021-06