Protective Role of Salicylic Acid on Rosmarinus officinalis L. Plant in Response to Salinity | ||||
| Journal of Plant Production | ||||
| Article 6, Volume 7, Issue 12, December 2016, Page 1287-1293 PDF (437.55 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2016.47022 | ||||
 View on SCiNiTO | ||||
| Author | ||||
M. I. Fetouh 
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| Department of Horticulture, Faculty of Agriculture, Tanta University, Egypt. | ||||
| Abstract | ||||
| This study was aiming to investigate the effect of different salinity levels, salicylic acid (SA) concentrations and their combination on plant growth, volatile oil production, physiological and biochemical characters of rosemary. Plants were treated with salinity levels at 0, 25, 50 and 100 mM NaCl and SA concentrations as 0, 0.2 and 0.4 mM. Plants responded to salinity via significant reduction in growth as well as relative water content (RWC) against control treatment. Salinity had no effect on volatile oil yield, even though the volatile oil % was increased. Also, salinity decreased total chlorophyll content and enhanced other Physiological and biochemical parameters as well as antioxidant enzyme (CAT, SOD and POX) activities comparative to unstressed plants. The % of N, P, and K were declined within salinity increase. In the meantime, Na and Cl were gradually increased in response to salinity level increase. SA foliar application alleviated the abovementioned salinity deleterious effects on growth, volatile oil production and the physiological and biochemical characters investigated. | ||||
| Keywords | ||||
| rosemary; salinity; Salicylic acid; Antioxidant enzymes; proline; Mineral content | ||||
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