Evaluation of the Growth and the Yield of Eggplant Crop Under Different Irrigation Depths and Magnetic Treatment of Water

Souza, Álvaro Henrique Cândido de; Rezende, Roberto; Seron, Cássio de Castro; Lorenzoni, Marcelo Zolin; Nascimeto, Jean Marcelo Rodrigues do; Lozano, Cláudia Salim; Nalin, Daniel; Terassi, Daniele de Souza; Gonçalves, Antônio Carlos Andrade; Saath, Reni; Freitas, Paulo Sérgio Lourenço de

doi:10.5539/jas.v11n17p35

Cited by 3 publications

(5 citation statements)

References 18 publications

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“…For the RDM variable, there was no significant difference between the water replacement depths of 75 and 100% ETc, however, when compared to the water replacement depth of 50% ETc, a significant difference was found. In an experiment conducted by Souza et al (2019), eggplant plants cultivated with 100% ETc had a higher accumulation of stem and leaf dry matter, similar to the results found in the present study.…”

Section: Resultssupporting

confidence: 90%

Growth and Development of Bell Pepper Crop Irrigated With Magnetically-Treated Water

Lorenzoni

Rezende

Souza

et al. 2020

Rev. Agric. Neotrop.

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This study aimed to evaluate the benefits of irrigation with magnetically-treated water and replacement depths based on ETc, in plant growth and development of bell pepper grown in a protected environment in two cultivation seasons. The experiment was carried out in a protected environment, in the Centro Técnico de Irrigação (CTI), at Universidade Estadual de Maringá (UEM), in Maringá - PR. Two experiments were performed: summer (2017-2018) and winter-spring (2018). The experimental design adopted was randomized blocks in factorial scheme 3 x 2 (six treatments) with four replications in the summer season and 2 x 2 (four treatments) with six replications in the winter-spring season. The first factor consisted of water replacement depths (50, 75 and 100% of the evapotranspiration of culture (ETc) in the summer season, and 75 and 100% ETc in the winter-spring season. The second factor was the application of water with and without magnetic treatment. Characteristics of growth (plant height, stem diameter, leaf area, and dry matter of stem, leaf, total, and root) and development (first flower and first fruit) were evaluated. Results showed that there was no significant interaction between the factors for the summer season. There were only isolated effects of replacement depths, and the 100% ETc had the highest values for the growth variables, independent of water treatment. The application of magnetically-treated water provided higher accumulation of dry matter (stem, total, and root) when irrigated with 75% ETc for the winter-spring season.

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Section: Resultssupporting

confidence: 90%

Growth and Development of Bell Pepper Crop Irrigated With Magnetically-Treated Water

Lorenzoni

Rezende

Souza

et al. 2020

Rev. Agric. Neotrop.

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“…In the second experiment, the YLD of bell pepper with a depth of 100% ETc was 2939.4 g per plant, higher than the depth based on 75% ETc, with YLD equal to 2516.8 g per plant, an increase of 16.8%. Thus, as observed in this study, water deficit caused a restriction in eggplant yield, independently from the water treatment used, with lower values for the variables studied than the hydric supplementation with 100% ETc (Souza et al, 2019). Similar results of Souza et al (2019) were found by Seron et al (2019) for scarlet eggplant cultivation.…”

Section: Resultssupporting

confidence: 82%

“…Thus, as observed in this study, water deficit caused a restriction in eggplant yield, independently from the water treatment used, with lower values for the variables studied than the hydric supplementation with 100% ETc (Souza et al, 2019). Similar results of Souza et al (2019) were found by Seron et al (2019) for scarlet eggplant cultivation. The authors did not observe significant responses between the water treatment and the ETc levels evaluated.…”

Section: Resultssupporting

confidence: 82%

“…Such results show the bell pepper sensibility to water deficit with a considerable yield loss per plant. Souza et al (2019) did not verify significant interactions for YLD and NF variables with the application of magnetically treated water and irrigation depths in eggplant cultivation in similar experimental conditions. The authors observed significant responses only to apply irrigation depths for YLD and NF variables and the irrigation level of 100% ETc that provided the higher values.…”

Section: Resultsmentioning

confidence: 73%

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Yield and Quality of Bell Pepper Fruits Irrigated With Magnetically Treated Water

Lorenzoni

Rezende

Seron

et al. 2021

Rev. Agric. Neotrop.

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The application of magnetically treated water is a valuable technique for crop irrigation to enhance the yield and quality of agricultural products. This study aims to evaluate the effect of irrigation water depths and the application of water with and without magnetic treatment on the yield and quality of bell pepper fruits in a controlled environment, verifying the effect of magnetically treated water on soil water retention. Two experiments were conducted in the Irrigation Technical Center of the Universidade Estadual de Maringá, Maringá/PR; the first on Summer 2017-2018, and the second on Winter-Spring 2018. A randomized block design with a factorial scheme 3 x 2 with four repetitions was used for the first experiment and a 2 x 2 scheme with six repetitions for the second. The first factor was the water replacement levels (based on the crop evapotranspiration), and the second the irrigation water treatment, with or without magnetic treatment. The yield and number of fruits were determined after six and four harvests in the first and second experiments. Quality characteristics (soluble solids level, pH, and titratable acidity) were evaluated from three fruits of each plant. The data was submitted to the Tukey test (p ≤ 0.05). It was verified that the application of magnetically treated water did not influence yield. However, it increased the levels of soluble solids and pH. To evaluate the effect of applying magnetically treated water on soil retention, 12 pots filled with soil and without plants were used. An increase in the gravimetric soil moisture using magnetically treated water was perceived, demonstrating higher water retention when using the irrigation method.

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“…Several studies aim to understand the mechanisms of using water treated with magnetic fields [27,32]. For Populus [33], eggplant [34], wheat [35], and lettuce crops [36], it was found that it provided a reduction in the effects caused by water stress conditions. In addition, studies with germination in tomatoes [37,38] and wheat [39] in saline conditions showed greater development when irrigated with treated water.…”

Section: Introductionmentioning

confidence: 99%

Effects of Water Deficit on Growth and Productivity in Tomato Crops Irrigated with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

Putti,

de Queiroz Barcelos,

Goes

et al. 2023

Plants

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The tomato crop is very sensitive to stress conditions. A water deficit is defined as when precipitation is less than the evapotranspiration (ETc) of the crop in a given period, and in this scenario of climate change, it is identified as responsible for global productivity losses. The use of potential technologies for better irrigation management, such as electromagnetically treated water, remains controversial. Thus, the objective of the present work was to investigate the effects of very low-frequency electromagnetic resonance field treatment on water for tomato crops submitted to different irrigation rates. For this, an experiment was carried out under controlled conditions with different types of water: electromagnetically treated water (WTVLF) and untreated water (UNW), as well as four water replacement rates: 40, 60, 80, and 100% ETc. The electromagnetic treatment of the water was carried out using the commercial equipment AQUA4D®. The experiment was carried out in pots with five replications per treatment. Lower activity of SOD, POD, CAT, and APX enzymes was observed in plants irrigated with water treated with very low-frequency electromagnetic resonance fields (WTVLF), indicating less oxidative stress caused by water deficit. Water deficit reduced chlorophyll content, but the effects were less harmful with WTVLF water. The water deficit resulted in less accumulation of dry matter and less productivity in a linear relationship. However, plants irrigated with WTVLF showed increments of about 20% in dry matter accumulation and 20% in fruit production concerning plants irrigated with untreated water, independent of the irrigation rates. We can conclude that irrigation with WTVLF can be a solution to reduce the damage caused by water deficits and increase the productivity of tomato crops.

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Evaluation of the Growth and the Yield of Eggplant Crop Under Different Irrigation Depths and Magnetic Treatment of Water

Cited by 3 publications

References 18 publications

Growth and Development of Bell Pepper Crop Irrigated With Magnetically-Treated Water

Growth and Development of Bell Pepper Crop Irrigated With Magnetically-Treated Water

Yield and Quality of Bell Pepper Fruits Irrigated With Magnetically Treated Water

Effects of Water Deficit on Growth and Productivity in Tomato Crops Irrigated with Water Treated with Very Low-Frequency Electromagnetic Resonance Fields

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