Effects of silicon and selenium foliar application on yield and some physiological traits of ‎wheat (Triticum aestivum L.) under irrigation withholdding conditions in reproductive stages

Articles in Press

Document Type : Research Paper

Authors

Department of Agronomy and plant breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili.

10.22034/saps.2025.68677.3391

Abstract

experiment was carried out as factorial based on randomized complete block design with three replications in 2024. Factors experimental were included irrigation at ‎three levels (full irrigation as control, irrigation withholding at 50% of booting stage ‎‎ as severe water limitation and irrigation withholding at 50% heading as moderate water limitation) and silicon and ‎selenium foliar application (foliar application with water as control, 6 mg.L-1 selenium, 60 mg. L-1 ‎nanosilicon, both foliar application selenium and silicon). The results showed that under irrigation withholding at ‎booting stage, there were an increase about 49, 97 and 34.5% in malondialdehyde and hydrogen peroxide ‎contents and soluble sugars respectively, in comparison with full irrigation. But, under severe water limitation ‎condition, both application of selnium and silicon were able to decrease malondialdehyde (65%) and hydrogen ‎peroxide (78%) contents and increasd soluble sugars (62%) content in comparison with no application of them ‎under the same level of irrigation levels. Means comparision showed that under severe water limitation, both ‎application of selnium and silicon were able to decrease electrical conductivity (40%), whereas chlorophyll b ‎content (28%), the activities of polyphenol oxidase peroxidase enzymes (40 and 13.8%, respectively), proline ‎content (31.2%) and grain yield (44.6%) increased in comparison with no application of these elements in the ‎same level of irrigation levels. Based on the results of this study, it can be suggested that application of ‎selenium and silicon were able to increase grain yield of wheat under water limitation by improving compatible ‎osmolytes and antioxidant enzymes activity

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Journal of Agricultural Science and Sustainable Production

Articles in Press, Accepted Manuscript
Available Online from 20 January 2027

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