Volume 12, Issue 54 (vol. 12, no. 54 2023)
2023, 12(54): 21-38 |
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Cheraghi M, Hatamnia A A, Ghanbari F. Effects of salinity stress on calendula (Calendula officinalis L.) by exogenous application of melatonin. Plant Process and Function 2023; 12 (54) : 2
URL: http://jispp.iut.ac.ir/article-1-1750-en.html
URL: http://jispp.iut.ac.ir/article-1-1750-en.html
1- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran
2- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran ,a.hatamnia@ilam.ac.ir
3- Department of Horticultural Science, Faculty of Agriculture, Ilam University, Ilam, Iran
2- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran ,
3- Department of Horticultural Science, Faculty of Agriculture, Ilam University, Ilam, Iran
Abstract: (1476 Views)
Calendula officinalis L. is an annual plant of the Asteraceae family that has medicinal, food and ornamental uses. In order to evaluate the effect of melatonin on some morphological and physiological characteristics of Calendula officinalis L. under salt stress, a factorial experiment was conducted using a completely randomized design with three replications. In this study, the effects of 5 levels of salinity (0, 40, 80, 120 and 160 mM sodium chloride) and two levels of foliar spraying of melatonin (0 and 100 μM) were evaluated. The results showed that salinity stress caused a decrease in all the investigated parameters in C. officinalis L. under salinity stress. The results of variance analysis of the data showed that salinity stress has a significant effect (p ≥ 0.01) on all measured parameters except chlorophyll b and anthocyanin. However, melatonin caused a significant increase (p ≥ 0.01) in a number of morphological (number of leaves, number of flowers, length of shoots, fresh and dry weight of shoots) and physiological parameters (relative water content, chlorophyll a, total chlorophyll, carotenoids, total protein and total phenol). The results of this study showed that salinity stress reduced the morphological and physiological characteristics compared to control, while the use of melatonin improved the morphological and physiological characteristics of the Calendula officinalis L., and melatonin can be used to moderate the negative effects of stress.
Article number: 2
Type of Study: Applicable |
Subject:
Salt Stress
Received: 2022/07/20 | Accepted: 2022/10/11 | Published: 2023/07/19
Received: 2022/07/20 | Accepted: 2022/10/11 | Published: 2023/07/19
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