Salicylic acid and proline enhance water use efficiency, antioxidant defense system and tissues' anatomy of wheat plants under field deficit irrigation stress

Authors

  • Ramadan A. Agami Agricultural Botany Department, Faculty of Agriculture, Fayoum University, Egypt
  • Saad A.M. Alamri Biology Department, Faculty of Science, King Khalid University, Saudi Arabia
  • T.A. Abd El-Mageed Soil and Water Department, Faculty of Agriculture, Fayoum University, Egypt
  • M.S.M. Abousekken Environmental Studies and Researches Institute (ESRI), University of Sadat City, Egypt
  • Mohamed Hashem Botany and Microbiology Department, Faculty of Science, Assiut University, Egypt

DOI:

https://doi.org/10.5073/JABFQ.2019.092.048

Abstract

Salicylic acid or proline enhances plant performance and encourages resistance to abiotic stress in plants. This investigation tests the influence of soaking kernels in salicylic acid (0.1 mM) or proline (10 mM) on the growth and performance of wheat plants grown in open field under full irrigation (100% of ETc) or deficit irrigation (50% of ETc). The results revealed that plants under field deficit irrigation (FDI) stress showed a decline in growth, kernel yield, relative water content, total content of chlorophylls and carotenoids, as well as negative changes in the anatomy of leaf and stem. Addition of salicylic acid or proline notably increased water use efficiency (WUE) and mitigated the stress created by FDI. Field deficit irrigation stress greatly increased electrolyte leakage, total soluble phenols, proline, and total soluble sugar contents and activities of enzymes SOD, CAT, and POX. Salicylic acid was the more efficient in mitigating FDI stress than proline. The results conclude that salicylic acid, as a growth regulator, could be used to alleviate the negative effect of limited water-availability in soil on wheat as well as improving the growth and yield of the crop.

Downloads

Published

2019-12-19

Issue

Vol. 92 (2019): Journal of Applied Botany and Food Quality

Section

Plant physiology

License

From Volume 92 (2019) on, the content of the journal is licensed under the Creative Commons Attribution 4.0 License. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes are labelled.

The copyright of the published work remains with the authors. If you want to use published content beyond what the CC-BY license permits, please contact the corresponding author, whose contact information can be found on the last page of the respective article. In case you want to reproduce content from older issues (before CC BY applied), please contact the corresponding author to ask for permission.