GROWTH AND DEVELOPMENT OF BELL PEPPER CROP IRRIGATED WITH MAGNETICALLY-TREATED WATER

Marcelo Zolin Lorenzoni,Antônio Carlos Andrade Gonçalves,Alvaro Henrique Cândido De Souza,Cassio De Castro Seron,Roberto Rezende,Reni Saath

doi:10.32404/rean.v7i2.4173

Marcelo Zolin Lorenzoni, Antônio Carlos Andrade Gonçalves + Show 4 more

Open Access

https://doi.org/10.32404/rean.v7i2.4173

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Abstract

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.

Highlights

Bell pepper (Capsicum annuum L.) is a fruit-type belonging to the Solanaceae family, as well as tomato, potato, eggplant, pepper, and scarlet eggplant
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
During the conduction of both experiments, were recorded temperatures above and below the values considered favorable to bell pepper development

Summary

Introduction

Bell pepper (Capsicum annuum L.) is a fruit-type belonging to the Solanaceae family, as well as tomato, potato, eggplant, pepper, and scarlet eggplant. It is one of the most appreciated vegetables in Brazil, standing out among the ten of the most economical and social importance (Lorenzoni et al, 2016). In agricultural science, there is no interest only in the use of the technologies mentioned, and those of low cost and generally underestimated, such as the use of magnets for magnetic water treatment (Mahmood and Usman, 2014). According to Mahmood and Usman (2014), magnetic field-treated irrigation water may be a promising technique for agriculture, but research in a variety of cultures is required. Authors reveal that constant use of magnetic water treatment can lead to increased nutrient absorption and biomass production in different crops (Mahmood and Usman, 2014; Maheshwari and Grewal, 2009)

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