Plant and Soil

, Volume 357, Issue 1–2, pp 117–129 | Cite as

Varietal differences of quinoa’s tolerance to saline conditions

  • Verena I. Adolf
  • Sergey Shabala
  • Mathias N. Andersen
  • Fatemeh Razzaghi
  • Sven-Erik Jacobsen
Regular Article



This study aimed to assess varietal differences of quinoa’s tolerance to salinity and to investigate physiological mechanisms conferring these differences.


Production of biomass in fourteen varieties grown under saline conditions was analysed in a pot experiment. For two contrasting varieties, the Danish variety Titicaca and the Bolivian variety Utusaya gas exchange, chlorophyll content index (CCI), fluorescence and ion relations were studied.


Responses to salinity differed greatly among the varieties; least affected were two varieties from the Bolivian altiplano and a variety from Peru. Titicaca and Utusaya both had substantially increased K+ concentrations in the leaf sap. But, Utusaya was much more efficient in restricting xylem Na+ loading. Xylem Na+ and K+ loading were found to be uncoupled. Utusaya maintained a relatively high stomatal conductance resulting in an only 25% NaCl-induced reduction in net CO2 assimilation compared to a 67% reduction in salt treated Titicaca plants. Maximum photochemical efficiency of PSII was not affected by salinity.


In addition to maintaining high gas exchange, tolerant varieties better control xylem Na+ loading. To what extent this control is related to radial root Na+ uptake or to the activity of Na+/H+-exchangers at the xylem parenchyma boundary remains to be studied.


Abiotic stress Photosynthesis Stomatal conductance Chlorophyll Ion uptake Sodium Potassium 


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Verena I. Adolf
    • 1
  • Sergey Shabala
    • 2
  • Mathias N. Andersen
    • 3
  • Fatemeh Razzaghi
    • 3
  • Sven-Erik Jacobsen
    • 1
  1. 1.Faculty of Life SciencesUniversity of CopenhagenTaastrupDenmark
  2. 2.School of Agricultural ScienceUniversity of TasmaniaHobartAustralia
  3. 3.Department of AgroecologyAarhus University, Faculty of Science and TechnologyTjeleDenmark

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