%0 Journal Article %T Effect of salinity on wheat (Triticum aestivum L.) grain yield, yield components and ion uptake %J Desert %I University of Tehran %Z 2008-0875 %A Asgari, H. R. %A Cornelis, W %A Van Damme, P %D 2011 %\ 12/01/2011 %V 16 %N 2 %P 167-174 %! Effect of salinity on wheat (Triticum aestivum L.) grain yield, yield components and ion uptake %K Abiotic stresses %K Plant ecophysiology %K Semi-arid agriculture %K Stress physiology %R 10.22059/jdesert.2012.24748 %X Crops growing in salt-affected soils may suffer from physiological drought stress, ion toxicity, and mineral deficiency. A pot study was conducted in 2004-2005 in the Aghala area (northern Iran) to study the effect of different salinity levels, i.e. ECe= 3 (control), 8, 12 and 16 dS m-1 on wheat grain, yield components and leaf ion uptake of four Iranian wheat genotypes, i.e. Kouhdasht, Atrak, Rasoul and Tajan. Treatments were replicated three times in a completely randomized design in a factorial arrangement. Desired salinity levels were obtained by mixing adequate NaCl before filling the pots. Soil water was maintained at 70% of available water holding capacity. Results revealed that Kouhdasht and Tajan showed highest and lowest grain yield and its components as compared to other cultivars at different salinity levels. Leaf Na+ and Cl- concentrations of all genotypes increased significantly with increasing soil salinity, with the highest concentrations in Tajan, followed by Rasoul, Atrak and Kouhdasht cultivars, respectively. Highest leaf K+ concentration and K+: Na+ ratio were observed in Kouhdasht cultivar, followed by Atrak, Rasoul and Tajan, respectively. Therefore, Kouhdasht and Atrak were identified as the most salt-tolerant genotypes as compared to two other wheat genotypes. %U https://jdesert.ut.ac.ir/article_24748_68b87958a523917c64f2c238abe8f751.pdf