Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions

The environmentally friendly, physical method of high voltage electrical discharge (HVED) was developed to improve the drought and salinity tolerance of two wheat genotypes. Unlike other plasma technologies, HVED treatment involves the discharge of electricity in water. In this study, the effect of...

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Main Authors: Tihana Marček, Tihomir Kovač, Katarina Jukić, Ante Lončarić, Maja Ižaković
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/10/10/2137
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author Tihana Marček
Tihomir Kovač
Katarina Jukić
Ante Lončarić
Maja Ižaković
author_facet Tihana Marček
Tihomir Kovač
Katarina Jukić
Ante Lončarić
Maja Ižaković
author_sort Tihana Marček
collection DOAJ
description The environmentally friendly, physical method of high voltage electrical discharge (HVED) was developed to improve the drought and salinity tolerance of two wheat genotypes. Unlike other plasma technologies, HVED treatment involves the discharge of electricity in water. In this study, the effect of HVED pretreatment on wheat germination and early vegetative growth under drought (0%, 15%, 20% and 30% PEG) and salinity (0, 90, 160 and 230 mM NaCl) stress conditions was investigated. HVED-exposed seeds showed altered seed surfaces and became more permeable to water uptake, resulting in higher germination percentages, germination index values, and shoot and root growth under the control and all drought and salinity concentrations. Moreover, the electrical conductivity of the water medium increased significantly, indicating HVED-induced reactions of ionization and dissociations of water molecules occurred. In addition, HVED pretreatment in the salt experiment improved the tolerance index values of the shoots and roots. The most pronounced genotypic variations occurred under the highest stress levels (30% PEG or 230 mM NaCl) and varied with the stress intensity and growth stage. The study results indicate that HVED pretreatment has the potential to improve drought and salt tolerance in wheat.
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spelling doaj.art-e88cc83715314e3689441aaf54075a3b2023-11-22T19:44:26ZengMDPI AGPlants2223-77472021-10-011010213710.3390/plants10102137Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity ConditionsTihana Marček0Tihomir Kovač1Katarina Jukić2Ante Lončarić3Maja Ižaković4Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 18, 31000 Osijek, CroatiaFaculty of Food Technology, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 18, 31000 Osijek, CroatiaBC Institute for production and Field Crops, Dugoselska 7, 10370 Rugvica, CroatiaFaculty of Food Technology, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 18, 31000 Osijek, CroatiaFaculty of Food Technology, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 18, 31000 Osijek, CroatiaThe environmentally friendly, physical method of high voltage electrical discharge (HVED) was developed to improve the drought and salinity tolerance of two wheat genotypes. Unlike other plasma technologies, HVED treatment involves the discharge of electricity in water. In this study, the effect of HVED pretreatment on wheat germination and early vegetative growth under drought (0%, 15%, 20% and 30% PEG) and salinity (0, 90, 160 and 230 mM NaCl) stress conditions was investigated. HVED-exposed seeds showed altered seed surfaces and became more permeable to water uptake, resulting in higher germination percentages, germination index values, and shoot and root growth under the control and all drought and salinity concentrations. Moreover, the electrical conductivity of the water medium increased significantly, indicating HVED-induced reactions of ionization and dissociations of water molecules occurred. In addition, HVED pretreatment in the salt experiment improved the tolerance index values of the shoots and roots. The most pronounced genotypic variations occurred under the highest stress levels (30% PEG or 230 mM NaCl) and varied with the stress intensity and growth stage. The study results indicate that HVED pretreatment has the potential to improve drought and salt tolerance in wheat.https://www.mdpi.com/2223-7747/10/10/2137high-voltage electric discharge (HVED) pre-treatmentwheatgerminationdroughtsalinity
spellingShingle Tihana Marček
Tihomir Kovač
Katarina Jukić
Ante Lončarić
Maja Ižaković
Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
Plants
high-voltage electric discharge (HVED) pre-treatment
wheat
germination
drought
salinity
title Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
title_full Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
title_fullStr Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
title_full_unstemmed Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
title_short Application of High Voltage Electrical Discharge Treatment to Improve Wheat Germination and Early Growth under Drought and Salinity Conditions
title_sort application of high voltage electrical discharge treatment to improve wheat germination and early growth under drought and salinity conditions
topic high-voltage electric discharge (HVED) pre-treatment
wheat
germination
drought
salinity
url https://www.mdpi.com/2223-7747/10/10/2137
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AT katarinajukic applicationofhighvoltageelectricaldischargetreatmenttoimprovewheatgerminationandearlygrowthunderdroughtandsalinityconditions
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