Emirates Journal of Food and Agriculture 36: 1-11, doi: 10.3897/ejfa.2024.118593
Water stress affect water relations, photosynthesis and oxidative defense mechanism in wheat (Triticum aestivum L.)
expand article infoReza Afsharianzadeh‡, Eslam Majidi Heravan‡, Mohammad Nasri§, Hossein Heidari Sharif Abad‡, Ghorban Noor Mohammadi‡
‡ Islamic Azad University, Tehran, Iran§ Islamic Azad University, Varamin, Iran

Corresponding author: Mohammad Nasri ( dr.nasrii@yahoo.com )

Academic editor: Abdul Jaleel
© Reza Afsharianzadeh, Eslam Majidi Heravan, Mohammad Nasri, Hossein Heidari Sharif Abad, Ghorban Noor Mohammadi.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Afsharianzadeh R, Majidi Heravan E, Nasri M, Heidari Sharif Abad H, Noor Mohammadi G (2024) Water stress affect water relations, photosynthesis and oxidative defense mechanism in wheat (Triticum aestivum L.). Emirates Journal of Food and Agriculture 36: 1-11. https://doi.org/10.3897/ejfa.2024.118593
Open Access
Abstract
Water stress is a major obstacle to agricultural production, significantly impacting both yield and quality. During the 2017–18 crop year in Shahriar region near Tehran, Iran, known for its dry and cold climate, a study was conducted to examine the influence of different irrigation levels on the quantitative and qualitative characteristics of various wheat cultivars. The experiment involved three irrigation levels: normal irrigation (control), withholding irrigation at the flowering stage, and withholding irrigation at the seed-filling stage as primary factors, with 21 different cultivars as secondary factors. The analysis showed that irrigation, cultivar type, and their interactions had a significant effect on grain yield, proline, total chlorophyll, carbohydrate content in the first and second internodes during flowering and ripening, as well as on SOD, CAT, GPX, MDA, DT, and D-OH-dG levels at a one percent significance level. Withholding irrigation at the flowering stage had a more severe impact compared to the seed-filling stage. The Rakhshan and Sivand cultivars yielded the highest and lowest grain yields under normal irrigation conditions, while the drought-tolerant Ofogh cultivar showed lower yields when irrigation was withheld at the flowering stage. Water stress led to increased proline levels and higher levels of SOD, CAT, MDA, DT, and D-OH-dG in wheat cultivars. The Rakhshan and Sivand cultivars were identified as drought-tolerant in this region.
Keywords
Wheat, Irrigation, Proline, Antioxidant Enzyme, Biomarker Destruction