African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12481

Full Length Research Paper

Alleviation of salinity effects by exogenous applications of salicylic acid in pearl millet (Pennisetum glaucum (L.) R. Br.) seedlings

Khalid Hussain1, Khalid Nawaz1, Abdul Majeed1, Farah Khan2, Feng Lin3*, Abdul Ghani4, Ghulam Raza5, Shahid Afghan6, Syed Zia-ul-Hussnain6, Kazim Ali6 and Aamir Shahazad6
  1Department of Botany, University of Gujrat (UOG)-Gujrat, Pakistan. 2Department of Botany, Lahore College for Women University, Lahore, Pakistan 3Shenyang Agricultural University, Shenyang (110161), China. 4Department of Biological Sciences, University of Sargodha, Sargodha, Pakistan 5Nuclear Institute of Agriculture (NIA) Tandojam, Sindh-Pakistan 6Shakarganj Sugar Research Institute, Jhang-Pakistan
Email: [email protected]

  •  Accepted: 22 October 2010
  •  Published: 13 December 2010

Abstract

 

Experiments for the study of alleviation of salt stress effects by exogenous applications of salicylic acid (SA) in pearl millet (Pennisetum glaucum (L.) R. Br.) seedlings were conducted in soil filled earthen pots having size 12 inches with 7 kg soil. Three treatments comprising, control (T0), 50-mol m-3 NaCl (T1) and T2 are having NaCl (50 mol m-3) + SA (50 mg l-1). Pots were arranged in completely randomized design (CRD) with 6 replicates. NaCl significantly reduced the plant and root lengths, plant fresh and dry weights. In contrast, NaCl did not show any adverse effect on plants treated with NaCl plus SA. Salicylic acid treated pearl millet plants under NaCl salinity strongly reduced accumulations of Na+, K+, Ca2+ and Cl−and glycinebetaine (GB) and total soluble carbohydrates (TSC) as compared to NaCl treatments. Higher N and relative water contents (RWC) was noted in T2(NaCl + SA) but it reduced in T1 (NaCl) as compared to control. It was concluded that SA could be used as a potential growth regulator to improve salt tolerance in plants.

 

Key words: Exogenous, salicylic acid, growth, ion contents, salt tolerance, pearl millet.

Abbreviation

 

Abbreviations: SA, Salicylic acid; GB, glycine betaine; RWC, relative water contents; TSC, total soluble carbohydrates.

 

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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