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Inducing systemic acquired resistance (SAR) against root-knot nematode Meloidogyne javanica and evaluation of biochemical changes in cucumber root Cover

Inducing systemic acquired resistance (SAR) against root-knot nematode Meloidogyne javanica and evaluation of biochemical changes in cucumber root

By: I. E. Taher and  S. N. Ami  
Open Access
|Dec 2022

Abstract

For inducing systemic acquired resistance (SAR), Salicylic acid (SA), Ascorbic acid (AA), and silicon (Si) were applied on shoots, roots, and both of them simultaneously. Results showed that all treatments reduced the number of galls, root gall index, number of egg mass/root system, number of nematodes/root system, number of eggs/root system, number of nematodes/pot soil, the final population density of nematodes, and rate of reproduction. Treatments also increased growth criteria, including chlorophyll, shoot fresh weight, root fresh weight, shoots dry weight, root dry weight, shoots length, and root length. SA foliar and root application decreased infection criteria and increased total phenol, peroxidase, and phenol oxidase activities. Ascorbic acid and silicon increased total phenol, peroxidase, and phenol oxidase activities.

DOI: https://doi.org/10.2478/helm-2022-0042 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 404 - 413
Submitted on: Apr 25, 2022
Accepted on: Nov 30, 2022
Published on: Dec 30, 2022
Published by: Slovak Academy of Sciences, Mathematical Institute
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2022 I. E. Taher, S. N. Ami, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.