M.R. Hadi
Research Department of Plant Biotechnology, University of Isfahan, Iran
S.M. Khiyam-Nekoie
Agricultural Biotechnology Research Institute, Iran
R. Khavarinejad
Department of Biology, Tarbiat-Moalem University, Tehran, Iran
N.A. Khosh Kholgh Sima
Agricultural Biotechnology Research Institute, Iran
P. Yavari
Research Department of Plant Biotechnology, University of Isfahan, Iran
ABSTRACT
Understanding the mechanisms of salt tolerance and the physiological and biochemical factors are very important in plant crops. Salinity-minerals (Ca2+, Mg2+, SO42-) interactions, which have been shown to be important in plants grown in saline conditions, were studied in durum wheat (Triticum turgidum L.). Two genotypes of durum wheat, one salt-tolerance (ICDW751) and the other salt-sensitive (ICDW324) were grown in nutrient solution containing 0, 50, 100 and 150 mM. NaCl. Amount of minerals of Ca2+, Mg2+ and SO42-were determined in the shoot and roots. Usually, salinity reduced Ca2+ and Mg 2+ contents in shoot and root of both genotypes, mainly in the salt-sensitive genotype. Apparently, SO42- content in shoot increased as the medium salinity increased, especially in the salt- tolerance genotype. Salinity increased significantly Na+/Ca2+ ratio and sodium adsorption ratio (SAR) = Na+/(Ca2++Mg2+)½ of shoot and root in both genotypes, mainly in the salt-sensitive genotype. Thereby, we suggested that ratio of Na+/Ca2+ and especially amount of SAR in durum wheat (Triticum turgidum L.) are suitable for discrimination salt-tolerance genotype from salt-sensitive genotype.
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How to cite this article
M.R. Hadi, S.M. Khiyam-Nekoie, R. Khavarinejad, N.A. Khosh Kholgh Sima and P. Yavari, 2008. Accumulation and Role of Ions (Ca2+, Mg2+, SO42-) on Salt Tolerance in Triticum turgidum L. Journal of Biological Sciences, 8: 143-148.
DOI: 10.3923/jbs.2008.143.148
URL: https://scialert.net/abstract/?doi=jbs.2008.143.148
DOI: 10.3923/jbs.2008.143.148
URL: https://scialert.net/abstract/?doi=jbs.2008.143.148
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