4.7 Article

Hydroponic Cultivation of Laranja Cherry Tomatoes under Salt Stress and Foliar Application of Hydrogen Peroxide

Journal

AGRICULTURE-BASEL
Volume 13, Issue 9, Pages -

Publisher

MDPI
DOI: 10.3390/agriculture13091688

Keywords

Solanum lycopersicum L.; saline water; hydroponics; antioxidant substance

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This study evaluated the effect of foliar application of hydrogen peroxide on hydroponically grown cherry tomatoes under salt stress. The results showed that proper foliar application of hydrogen peroxide could mitigate the negative effects of salt stress and improve the yield and ascorbic acid content of cherry tomatoes.
The objective of this study was to evaluate the effect of the foliar application of hydrogen peroxide (H2O2) in mitigating the effects of salt stress on cherry tomato cultivation in a hydroponic system. The experiment was conducted in a greenhouse, using a Nutrient Film Technique hydroponic system. The experimental design used was completely randomized in a split-plot scheme, with four levels of electrical conductivity of the nutrient solution-ECns (2.1, 2.8, 3.5, and 4.2 dS m(-1)), considered as plots, and five H2O2 concentrations (0, 12, 24, 36, and 48 mu M), regarded as subplots, with four replicates and two plants per plot. An increase in the electrical conductivity of the nutrient solution negatively affected the production components of cherry tomatoes. However, it did not affect the post-harvest quality of the fruits. Despite the reductions observed in the production components due to the increase in the electrical conductivity of the nutrient solution, foliar application of H2O2 at concentrations esteemed between 22 and 25 mu M attenuated the deleterious effects of salt stress on the number of fruits and ascorbic acid content and increased the total fruit production per plant of cherry tomatoes.

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