The impact of silicon dioxide on bread wheat seedlings under saline stress

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Hashemzadeh Masoumeh; Maleki Mahmood; Rahimi Mehdi

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF PLANT PHYSIOLOGY AND BREEDING Year:2024 | Volume:14 | Issue:1 Page(s): 77-88

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Title

The impact of silicon dioxide on bread wheat seedlings under saline stress

Author(s)

Hashemzadeh Masoumeh | Maleki Mahmood | Rahimi Mehdi | Issue Writer Certificate

Keywords

NaCl

Photosynthetic pigments

SiO2

Triticum aestivum L

Abstract

Objective: Silicon has beneficial effects on a wide range of plant species under abiotic stresses. For this reason, investigating the role of silicon in improving the growth of crops under stress has always been of interest.Methods: This study aimed to investigate the effect of silicon dioxide on seedlings of bread wheat, Pishtaz cultivar. After sterilizing wheat seeds with 70% ethanol, the seeds were planted in pots filled with perlite. The experiment was arranged as factorial based on a randomized complete block design. At the two-leaf stage, silicon dioxide was applied at four levels (0, 15, 30, and 45 mg/l). After one week, salinity stress was applied at two levels of 0 and 100 mM. After one week of applying salt stress, different morphophysiological traits including root and shoot length, root and shoot fresh and dry weight, and content of chlorophyll a, b, carotenoids, sodium, potassium, and iron were measured.Results: The results showed that salinity has a negative effect on morphophysiological traits, and on the contrary, silicon, especially at a concentration of 45 mg/liter, improves these traits under salt stress. Also, the sodium content in the presence of silicon decreased strongly in the wheat seedlings under salinity, and on the contrary, the K/Na increased. Silicon also had a positive effect on the content of iron and chlorophyll of seedlings under salt stress.Conclusion: These results show that silicon improves the growth of bread wheat seedlings by facilitating the absorption of mineral elements, homeostasis of nutrients, and preventing the destruction of chlorophyll.

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