Volume 14, Issue 66 (vol. 14, no. 66 2025)
2025, 14(66): 17-30 |
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Rajaie M, Keshavarz A. Improvement of growth and physiological traits of moldavian balm (Dracocephalum moldavica L.) by foliar spraying of salicylic acid and jasmonic acid under salinity stress conditions. Plant Process and Function 2025; 14 (66) : 2
URL: http://jispp.iut.ac.ir/article-1-2118-en.html
URL: http://jispp.iut.ac.ir/article-1-2118-en.html
1- Soil and Water Research Department, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Iran , rajaie.majid@yahoo.com
2- Soil Science Department, Islamic Azad University, Darab Branch, Darab, Iran
2- Soil Science Department, Islamic Azad University, Darab Branch, Darab, Iran
Abstract: (94 Views)
One of the important challenges of agricultural production is the growing trend of salinity stress. In recent years, the pseudo-growth plant hormones have been used to reduce the adverse effects of salinity stress. This research was conducted in the form of a factorial completely randomized block design in 1401-1402 at Darab city. The first factor was four levels of salinity, including 0, 25, 50 and 100 mM of sodium chloride in irrigation water and the second factor was foliar spraying at five levels, consisting of control, salicylic acid 0.5 and 1 mM and jasmonic acid 0.05 and 0.1 mM. Results showed that an increase in salinity level caused an increase in the content of sodium, chlorine and ionic leakage and a decrease in the relative water content and chlorophyll of the leaves. At 25 mM of sodium chloride, foliar application of 1 mM salicylic acid caused a 19% decrease in ion leakage and a 13% increase in relative water content of leaves. In salinity of 50 mM sodium chloride, foliar application of 1 mM salicylic acid and 0.1 mM jasmonic acid caused a 6 and 10% increase in shoot dry weight, respectively, compared to the control. Also, 0.05 and 0.1 mM of jasmonic acid increased the root dry weight by 10 and 14%, respectively, compared to the control. In fact, the effect of jasmonic acid and salicylic acid in improving the adverse effects of salinity was partly related to the improvement of physiological traits in saline conditions. Also, it seems that the concentration of 0.1 mM of jasmonic acid and 1 mM of salicylic acid performed better under salt stress conditions.
Article number: 2
Type of Study: Research |
Subject:
Salt Stress
Received: 2024/09/14 | Accepted: 2024/11/12 | Published: 2025/06/22
Received: 2024/09/14 | Accepted: 2024/11/12 | Published: 2025/06/22
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