Impact of exogenous salicylic acid on growth and ornamental characteristics of calendula (Calendula officinalis L.) under salinity stress
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2012, Vol 8, Issue 1
Abstract
Application of salicylic acid (SA) as a phytohormone has been increased due to resistance to stresses such as salt stress. Pot experiments were conducted to determine the effect of exogenous salicylic acid application on growth and ornamental characteristics of calendula grown under salt stress and greenhouse conditions. For this purpose a factorial experiment based on completely randomized design was conducted with 3 levels of SA (0 (control), 1, 2 mM) and 3 levels of NaCl (0, 100 and 200 mM) with 4 replications. At flowering stage, SA was applied with spraying two times in two week intervals. NaCl was also applied as drench (200 ml per pot) in two day intervals. The results showed that salinity decreased the growth, Chlorophyll reading values, flower number per plant and flower diameter. However, foliar applications of SA resulted in greater root, shoot and total dry weight, plant height and leaf area of calendula plants under salt stress. The highest chlorophyll reading values was obtained from 2.00 mM SA application in all NaCl treatments. Salinity decreased number of flower per plant and flower diameter as ornamental characteristics; however SA increased them under salinity stress. Plants treated with 1.00 mM SA had the highest flower diameter at 100 and 200 mM of NaCl. Electrolyte leakage increased by salinity, however foliar application of SA significantly reduced electrolyte leakage under salt stress. Based on the present results, foliar application of SA treatments can ameliorate the negative effects of salinity on the growth and ornamental characteristics of calendula plants.
Authors and Affiliations
H. Bayat, M. Alirezaie
Keywords
Related Articles
- EP ID EP97896
- DOI -
- Views 145
- Downloads 0
Effect of Hormone Priming on Germination Characteristics and Enzyme Activity of Mountain Rye (Secale montanum) Seeds under Drought Stress Conditions
Seed priming techniques have been used to increase germination, improve germination uniformity and seedling establishment under stressed conditions. Seed priming was used in Rye Mountain (Secale montanum) t...
DNA MUTAGENESIS IN PANAX GINSENG CELL CULTURES
Studying of Salinity Stress Effect on Germination, Proline, Sugar, Protein, Lipid and Chlorophyll Content in Purslane (Portulaca oleracea L.) Leaves
Approximately 30% of country regions are under influence of salt and one of the main important methods for increasing of hectare performance in salt soils, using of resistant plant against with salt such as medicinal ann...
Flavonoids in Adaptation of Begonia grandis Dryander subsp. grandis Introduced in West Siberia (Novosibirsk)
The dynamics of flavonoids (flavones and flavonols) in leaves of [i]Begonia grandis[/i] Dryander [i]subsp. grandis[/i] plants introduced in Western Siberia (Central Siberian Botanical Garden, Siberian Branch of the Russi...
Effect of Different Levels of Drought Stress (PEG 6000 Concentrations) On Seed Germination and Inorganic Elements Content in Purslane (Portulaca oleraceae L.) Leaves
One of the most important environmental stresses is drought that great effect on plant grow and metabolism. In this study, drought stress effect on germination and inorganic elements content in leaves of medical plant Pu...