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Effect of exogenous salicylic acid on some physiological parameters and alleviation of drought stress in Nigella sativa plant under hydroponic culture

Author

Listed:
  • Rozita KABIRI

    (Faculty of Agriculture, Shahid Bahonar University of Kerman, Iran)

  • Fatemeh NASIBI

    (Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Iran)

  • Hassan FARAHBAKHSH

    (Horticultural Research Institute, Shahid Bahonar University of Kerman, Kerman, Iran)

Abstract

To study the effect of salicylic acid on photosynthetic pigments (chlorophyll a, b, total chlorophyll, and carotenoids), polyphenol compounds, anthocyanin, flavonoids, phenylalanine ammonia-lyase activity, malondialdehyde, lipoxygenase activity, electrolyte leakage, relative water content, soluble sugar contents, and protein content of black cumin (Nigella sativa) under drought stress in hydroponic culture, an experiment was conducted as a completely randomised design in a factorial arrangement with three replicates. Experimental treatments included salicylic acid at three levels (0, 5, and 10µM) and drought stress (induced by polyethylene glycol 6000) at four levels (0, -0.2, -0.4, and -0.6 MPa). Results showed that salicylic acid application through the root medium increased drought tolerance of black cumin seedlings. Plants pre-treated with salicylic acid exhibited slight injury symptoms whereas those not pre-treated with salicylic acid had moderate damage and lost considerable portions of their foliage. In conclusion, salicylic acid could protect the Nigella plant against drought stress through increasing of all the mentioned traits, and 10µM salicylic acid was the most effective level under both conditions.

Suggested Citation

  • Rozita KABIRI & Fatemeh NASIBI & Hassan FARAHBAKHSH, 2014. "Effect of exogenous salicylic acid on some physiological parameters and alleviation of drought stress in Nigella sativa plant under hydroponic culture," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 50(1), pages 43-51.
    • Handle: RePEc:caa:jnlpps:v:50:y:2014:i:1:id:56-2012-pps
    DOI: 10.17221/56/2012-PPS
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    Cited by:

    1. Athakorn Promwee & Warin Intana, 2022. "Trichoderma asperellum (NST-009): A potential native antagonistic fungus to control Cercospora leaf spot and promote the growth of 'Green Oak' lettuce (Lactuca sativa L.) cultivated in the commercial ," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 58(2), pages 139-149.

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