Skip to main navigation menu Skip to main content Skip to site footer

Research Articles

Vol. 12 No. 2 (2025)

Stimulate drought stress tolerance by polyethylene glycol in wheat seedling by various concentrations of ascorbic acid

DOI
https://doi.org/10.14719/pst.7348
Submitted
21 January 2025
Published
26-04-2025 — Updated on 30-04-2025
Versions

Abstract

A lab experiment was carried out to investigate the role of ascorbic acid on wheat seedling drought stress induced by polyethylene glycol (PEG-6000) on some physiological traits and enzyme activity. The Wheat seeds were activated using ascorbic acid in four concentrations: 0, 25, 50 and 100 mg L-1. The germination medium was treated with PEG-6000 compound to achieve 0, -0.4, -0.8 and -1.2 bar tensions. The study's findings showed that the 50 mg L-1 ascorbic acid concentration provided the highest rates of wheat seed germination percentage; 99.2 %, root length; 12.30 cm, shoot length; 11.64 cm and relative water accounting for 84.75 %. Additionally, catalase and peroxidase enzymes increased most at the same ascorbic acid concentration. Also, the same concentration (50 mg L-1) improved the electrical conductivity of wheat seedling cells by recording the lowest rate of 3.53 dS/m. On the other hand, showed the lowest rates at high stress of PEG-6000 -1.2 bar when recording a germination percentage of 52.58 %, root length; 5.24 cm, shoot length; 5.79 cm and relative water content reached 56.32 %. In addition to causing the highest rise in enzymatic antioxidants for catalase and peroxidase, the same stress also had the highest rate of electrical conductivity, reaching 11.49 dS/m.

References

  1. FAO. Food and Agriculture Organization of the United Nations. 2022. https://openknowledge.fao.org/server/api/core/bitstreams/fba4ef43-422c-4d73-886e-3016ff47df52/content
  2. Central Statistical Organization - Ministry of Planning Directorate of Agricultural Statistics Wheat and Barley Production Report. Iraq. 2023. https://www.fao.org/giews/countrybrief/country/IRQ/pdf_archive/IRQ_Archive.pdf
  3. Mohammed AK, Kadhem FA. Effect of water stress on yield and yield components of bread wheat genotypes. 2017;3(48):729–39. https://doi.org/10.36103/ijas.v48i3.386
  4. AbdulKafoor AH, Al-Janabi YA, Ali IM, Ramadan AS, AL-Neda ATS. Role of arginine in improving the traits of several wheat varieties. Horizon. 2024;11(3):325-30.? https://doi.org/10.14719/pst.3680
  5. Akram NA, Shafiq F, Ashraf M. Ascorbic acid-a potential oxidant scavenger and Its role in plant development and abiotic stress tolerance. Frontiers in Plant Science. 2017:613. https://doi.org/10.3389/fpls.2017.00613
  6. Al-Saleh L, Hyass B, Abbas F. Effect of osmotic potential induced by polyethylene glycol (PEG-6000) on the germination of five chickpea (Cicer arietinum L.) Varieties. Syrian Journal of Agricultural Research. 2019;6(3):219–32.
  7. Aebi H. Catalase in vitro. In Methods in Enzymology.1984;105: 121-26. https://doi.org/10.1016/s0076-6879(84)05016-3
  8. Flayyih TM, Almarie, AA. Total phenolic exudation and allelopathic potential of sunflower residues as sustainable weed management. Iraqi Journal of Science. 2023:2215-22.? https://doi.org/10.24996/ijs.2023.64.5.10
  9. Nezih M. The peroxidase enzyme activity of some vegetable and its resistance to Heat. Food Agri. 1985;36:877-80. https://doi.org/10.1002/jsfa.2740360918
  10. Hammad AJ, Ali, IM. Effect of spraying ascorbic acid on growth and yield of soybean plant affected by irrigation interval. In IOP Conference Series: Earth and Environmental Science. 2024;1371(5):052010. https://doi.org/10.1088/1755-1315/1371/5/052010
  11. ALobaidy BS, Al-Falahi M N, Almarie AA. Effect of 6-bap growth regulator on seed priming of several bread wheat varieties under water irrigation salinity stress. Journal of Life Science and Applied Research. 2021;2(1):24-33.? https://doi.org/10.59807/jlsar.v2i1.27
  12. Farooq M, Irfan M, Aziz T, Ahmad I, Cheema, SA Seed priming with ascorbic acid improves drought resistance of wheat. Journal of Agronomy and Crop Science. 2013;199(1):12-22.? https://doi.org/10.1111/j.1439-037X.2012.00521.x
  13. Ali IM, Nulit R, Ibrahim, MH, Uddin MD. Evaluation on seed quality of three soybean varieties at different maturity stages. Biochemical & Cellular Archives.2019;1:19.
  14. ?
  15. Sarker U, Oba S. The response of salinity stress-induced A. tricolor to growth, anatomy, physiology, non-enzymatic and enzymatic antioxidants. Frontiers in Plant Science. 2020; 11:559876.https://doi.org/10.3389/fpls.2020.559876
  16. Hafez EM, Gharib HS. Effect of exogenous application of ascorbic acid on physiological and biochemical characteristics of wheat under water stress. International Journal of Plant Production. 2016;10(4),579-96. https://doi.org/10.22069/ijpp.2016.3051
  17. Alkubaisi AF, Ali IM. Role of melatonin application date in some biochemical characteristics of sesame crop affected by irrigation interval. In IOP Conference Series: Earth and Environmental Science. 2023;1252:012031. https://doi.org/10.1088/1755-1315/1252/1/012031
  18. Flayyih TM, Almarie AA. Allelopathic effect of sunflower residues on some soil properties and growth parameters of wheat, bean and flax crops. Revis Bionat Sciences. 2022;7(4):38. https://doi.org/10.21931/RB/2022.07.04.38

Downloads

Download data is not yet available.