African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 687

Full Length Research Paper

NaCl tolerance studies at seedling stage among different genotypes of Helianthus annus L.

Shehzad Ahmad Kang*
  • Shehzad Ahmad Kang*
  • Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan, 38040.
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Muhammad Shoaib
  • Muhammad Shoaib
  • Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan, 38040.
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Frasat Saeed
  • Frasat Saeed
  • Cotton Research Institute, AARI, Faisalabad, Pakistan.
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Muhammad Amin
  • Muhammad Amin
  • Pulses Research Institute, AARI, Faisalabad, Pakistan.
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Amad Abbas
  • Amad Abbas
  • National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.
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  •  Received: 10 September 2013
  •  Accepted: 09 January 2015
  •  Published: 31 March 2015

Abstract

A greenhouse research was conducted at the research area of Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad to evaluate 20 accessions for the identification of salt tolerant genotypes of sunflower (Helianthus annuus L.) as well as their characteristics. The experiment was conducted in completely randomized design with three repeats. Salinity was developed with NaCl to achieve the final levels of 3, 6 and 9 dsm-1 salinity, whereas control contained tap water. After 60 days of planting, 10 seedlings of each accession from each treatment and replication were uprooted and data was recorded. Sunflower genotypes G-36, G-61, A-23, A-61 and A-185 performed better in both controlled and saline conditions. These genotypes showed better shoot and root growth and biomass by least concentration of Na+ and higher concentration of Cl- in leaf sap.

 

Key words: Tap water, NaCl, replication, leaf sap.