Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars

Salinity stress riskiness adversely affects the population by causing food and environmental issues. Moreover, the destructive impacts of salinization differ among various plant cultivars. In the present study, we evaluate the salt stress tolerance among three wheat cultivars based on growth criteri...

Full description

Saved in:
Bibliographic Details
Main Author: Abeer Hamdy Elhakem
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:International Journal of Agronomy
Online Access:http://dx.doi.org/10.1155/2020/8882486
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832560125173301248
author Abeer Hamdy Elhakem
author_facet Abeer Hamdy Elhakem
author_sort Abeer Hamdy Elhakem
collection DOAJ
description Salinity stress riskiness adversely affects the population by causing food and environmental issues. Moreover, the destructive impacts of salinization differ among various plant cultivars. In the present study, we evaluate the salt stress tolerance among three wheat cultivars based on growth criteria, leaf relative water content (LRWC), and abscisic acid (ABA) level by treating the plants with 0, 40, 80, or 160 mM NaCl. The results revealed that an increase in NaCl concentration caused a massive reduction in growth (shoot and root growth criteria and flag leaf area), photosynthetic pigments (chlorophyll a, chlorophyll b, carotenoids, and total pigments), and LRWC value, but a significant increase in the ABA content in flag leaf in all wheat cultivars. The wheat cultivars were otherwise exposed to anatomical characteristics and photosynthetic gas exchange investigations. NaCl toxicity induced a noticeable reduction in stomatal aperture area (SAA), stomatal conductance (Gs), transpiration rate (Tr), and leaf net photosynthetic rate (Pn). These impacts were remarkable with the 160 mM NaCl treatments for all evaluated parameters. Moreover, Sakha 69 revealed salinity tolerance greater than Giza168, and Sakha8 was the most salt-sensitive cultivar. Consequently, we recognized Sakha 69 as a salt-tolerant cultivar that may be used as parents in breeding programs for new cultivars with enhanced salt tolerance and for further genetic investigations to reveal the genetic strategies controlling the response of salinity stress in the wheat plant.
format Article
id doaj-art-9714675b38974e8b9e94c46be4d9c731
institution Kabale University
issn 1687-8159
1687-8167
language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series International Journal of Agronomy
spelling doaj-art-9714675b38974e8b9e94c46be4d9c7312025-02-03T01:28:24ZengWileyInternational Journal of Agronomy1687-81591687-81672020-01-01202010.1155/2020/88824868882486Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat CultivarsAbeer Hamdy Elhakem0Department of Biology, College of Sciences and Humanities in AlKharj, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi ArabiaSalinity stress riskiness adversely affects the population by causing food and environmental issues. Moreover, the destructive impacts of salinization differ among various plant cultivars. In the present study, we evaluate the salt stress tolerance among three wheat cultivars based on growth criteria, leaf relative water content (LRWC), and abscisic acid (ABA) level by treating the plants with 0, 40, 80, or 160 mM NaCl. The results revealed that an increase in NaCl concentration caused a massive reduction in growth (shoot and root growth criteria and flag leaf area), photosynthetic pigments (chlorophyll a, chlorophyll b, carotenoids, and total pigments), and LRWC value, but a significant increase in the ABA content in flag leaf in all wheat cultivars. The wheat cultivars were otherwise exposed to anatomical characteristics and photosynthetic gas exchange investigations. NaCl toxicity induced a noticeable reduction in stomatal aperture area (SAA), stomatal conductance (Gs), transpiration rate (Tr), and leaf net photosynthetic rate (Pn). These impacts were remarkable with the 160 mM NaCl treatments for all evaluated parameters. Moreover, Sakha 69 revealed salinity tolerance greater than Giza168, and Sakha8 was the most salt-sensitive cultivar. Consequently, we recognized Sakha 69 as a salt-tolerant cultivar that may be used as parents in breeding programs for new cultivars with enhanced salt tolerance and for further genetic investigations to reveal the genetic strategies controlling the response of salinity stress in the wheat plant.http://dx.doi.org/10.1155/2020/8882486
spellingShingle Abeer Hamdy Elhakem
Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
International Journal of Agronomy
title Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
title_full Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
title_fullStr Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
title_full_unstemmed Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
title_short Growth, Water Relations, and Photosynthetic Activity Are Associated with Evaluating Salinity Stress Tolerance of Wheat Cultivars
title_sort growth water relations and photosynthetic activity are associated with evaluating salinity stress tolerance of wheat cultivars
url http://dx.doi.org/10.1155/2020/8882486
work_keys_str_mv AT abeerhamdyelhakem growthwaterrelationsandphotosyntheticactivityareassociatedwithevaluatingsalinitystresstoleranceofwheatcultivars