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BY 4.0 license Open Access Published by De Gruyter Open Access July 19, 2019

Genotypic variability for salt stress tolerance among wild and cultivated wheat germplasms at an early development stage

  • Imen Klay EMAIL logo , Leila Riahi , Hajer Slim Amara and Abderrazak Daaloul
From the journal Open Agriculture


This study was conducted to evaluate the variability of salt tolerance potentials among nine wheat genotypes representing wild and cultivated species namely Triticum turgidum subsp. durum, Triticum aestivum and Aegilops geniculata. Ionomic and photosynthetic traits were used for the screening of the studied samples when faced with four salinity levels of NaCl (0, 50, 100 and 150 mM) under green house conditions at the seedling stage. The investigated genotypes exhibited different levels of salt stress tolerance. Ionomic and photosynthetic traits underline the distinctiveness of the common wheat varieties which highlighted particular performances under salt stress conditions and showed higher tolerance potentials among the studied genotypes. Interestingly, the Vaga variety showed more ability to maintain higher K+/Na+ ratios and Pq coefficients compared with the control conditions and stable Fv/F0 and Fv/Fm ratios. Stable behaviour was exhibited by wild Aegilops accessions while durum wheat varieties have been shown to be more sensitive to salt stress. Further investigations were required for the common wheat variety Vaga, which could be useful for successful breeding and biotechnological improvement strategies concerning wheat species.


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Received: 2018-12-22
Accepted: 2019-05-27
Published Online: 2019-07-19

© 2019 Imen Klay et al., published De Gruyter

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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