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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Plant Nutrition
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1398846
This article is part of the Research Topic Application and Mechanism of Plant Biostimulants, Biochar, Fertilizer Products, and Other Nutrition-related Agrochemicals View all 12 articles

Biochar Derived from Olive Oil Pomace Mitigates Salt Stress on Seedling Growth of Forage Pea

Provisionally accepted
  • 1 Atatürk University, Erzurum, Erzurum, Türkiye
  • 2 Yeditepe University, Istanbul, Türkiye

The final, formatted version of the article will be published soon.

    Studies are being conducted to develop strategies to reduce the adverse effects of salinity stress.In the present study, it was aimed to determine the interactive effects of salinity stress with biochar on plant growth, the physiological and biochemical attributes of forage peas (Pisum sativum ssp. arvense L.). Salt applications were carried out with irrigation water at concentrations of 0, 25, 50, 75, and 100 mM NaCl. The experiment was conducted using a randomized complete block design with 3 applications (control: 0 (B0), 2.5% biochar (B1), and 5% biochar (B2)), 5 salt doses (0 (S0), 25 (S1), 50 (S2), 75 (S3), and 100 (S4) mM NaCl), and 3 replications, arranged in a 3x5 factorial arrangement. In the salt-stressed environment, the highest plant height (18.75 cm) and stem diameter (1.71 mm) in forage pea seedlings were obtained with the application of B1. The root fresh (0.59 g/plant) and dry weight (0.36 g/plant) were determined to be the highest in the B1 application, both in non-saline and saline environments. A decrease in plant chlorophyll content in forage pea plants was observed parallel to the increasing salt levels. Specifically, lower H2O2, MDA, and proline content were determined at all salt levels with biochar applications, while in the B0 application, these values were recorded at the highest levels. Furthermore, in the study, it was observed that the CAT, POD, and SOD enzyme activities were at their lowest levels at all salt levels with the biochar application, while in the B0 application, these values were determined to be at the highest levels.There was a significant decrease in plant mineral content, excluding Cl and Na, parallel to the increasing salt levels. The findings of the study indicate that biochar amendment can enhance forage peas growth by modulating the plant physiology and biochemistry under salt stress.Considering the plant growth parameters, no significant difference was detected between 2.5% and 5% biochar application. Therefore, application of 2.5 biochar may be recommended.

    Keywords: biochar, Forage crops, Plant Growth, PEA, Salinity

    Received: 10 Mar 2024; Accepted: 16 Jul 2024.

    Copyright: © 2024 Gullap, Severoglu, Karabacak, Kurt, Ekinci, Turan, Aktas and YILDIRIM. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: ERTAN YILDIRIM, Atatürk University, Erzurum, 25240, Erzurum, Türkiye

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.