Volume 14, Issue 69 (vol. 14, no. 69 2025)
2025, 14(69): 175-192 |
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Khodaei F, Khalilzadeh R, Azizi K. Evaluating the effect of selenium, methanol, and ascorbic acid on some morphophysiological traits of wheat (Triticum aestivum L.) under different irrigation levels. Plant Process and Function 2025; 14 (69) : 10
URL: http://jispp.iut.ac.ir/article-1-2198-en.html
URL: http://jispp.iut.ac.ir/article-1-2198-en.html
1- Department of Plant Production and Genetics Engineering, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
2- Department of Plant Production and Genetics Engineering, Faculty of Agriculture, Lorestan University, Khorramabad, Iran ,khalilzadeh.r@lu.ac.ir
2- Department of Plant Production and Genetics Engineering, Faculty of Agriculture, Lorestan University, Khorramabad, Iran ,
Abstract: (20 Views)
Using plant growth regulators and supplementary irrigation is one approach for increasing production while avoiding the negative impacts of drought stress. A split-plot experiment was conducted in a randomized complete block design with three replications during 2023-2024. Experimental treatments include irrigation at three levels [supplementary irrigation at the flowering stage, grain filling stage, and without irrigation (rainfed)], and plant growth regulators at four levels include foliar application of selenium, ascorbic acid, methanol, and water as a control. Water deficit stress increased the content of proline, soluble sugars, electrical conductivity, grain protein, and dry matter remobilization from shoot organs and stem, as well as their contribution to grain yield, whereas growth regulators increased the content of soluble sugars and grain protein while decreasing electrical conductivity and dry matter remobilization from shoot organs and stem and their contribution to grain yield. The results showed that supplementary irrigation at the flowering and grain-filling stages increased grain yield by 5.9 and 12.6%, respectively, compared to the no-irrigation conditions. Also, foliar application of selenium, ascorbic acid, and methanol improved grain yield by 1.1, 8.3, and 7.1%, respectively, compared to the control (no foliar application). It appears that foliar spraying plant growth regulators and supplementary irrigation has somewhat mitigated the negative effects of drought stress. As a result, it is possible to suggest the use of these growth regulators and supplementary irrigation in rainfed conditions in order to increase wheat yield and yield components.
Article number: 10
Type of Study: Research |
Subject:
Droughts Stress
Received: 2025/04/11 | Accepted: 2025/07/8 | Published: 2025/12/16
Received: 2025/04/11 | Accepted: 2025/07/8 | Published: 2025/12/16
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