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Asgari, H.R., Cornelis, W., Van Damme, P.. (1391). Salt stress effect on wheat (Triticum aestivum L.) growth and leaf ion concentrations. , 6(2), 195-208. doi: 10.22069/ijpp.2012.775
H.R. Asgari; W. Cornelis; P. Van Damme. "Salt stress effect on wheat (Triticum aestivum L.) growth and leaf ion concentrations". , 6, 2, 1391, 195-208. doi: 10.22069/ijpp.2012.775
Asgari, H.R., Cornelis, W., Van Damme, P.. (1391). 'Salt stress effect on wheat (Triticum aestivum L.) growth and leaf ion concentrations', , 6(2), pp. 195-208. doi: 10.22069/ijpp.2012.775
Asgari, H.R., Cornelis, W., Van Damme, P.. Salt stress effect on wheat (Triticum aestivum L.) growth and leaf ion concentrations. , 1391; 6(2): 195-208. doi: 10.22069/ijpp.2012.775

Salt stress effect on wheat (Triticum aestivum L.) growth and leaf ion concentrations

International Journal of Plant Production
مقاله 5، دوره 6، شماره 2، تیر 2012، صفحه 195-208    اصل مقاله (84.39 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22069/ijpp.2012.775
نویسندگان
H.R. Asgari* 1؛ W. Cornelis2؛ P. Van Damme3
1Dept. Desert Management, Gorgan University of Agricultural Sciences and Natural Resources, Iran.
2Dept. Soil management, Ghent University, Belgium.
3Dept. Plant Production, Ghent University, Belgium.
چکیده
Crops growing in salt-affected soils may suffer from physiological drought
stress, ion toxicity, and mineral deficiency which then lead to reduced growth and
productivity. A pot experiment was conducted to study the effect of different
salinity levels, i.e. ECe=3 dS m-1 (control), 8, 12 and 16 dS m-1 on wheat grain
yield, yield components and leaf ion uptake. 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 yield compomnents as compared to
others. 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. Highest leaf K+ concentration and K+: Na+ ratio
were observed in Kouhdasht, followed by Atrak, Rasoul and Tajan, respectively.
Based on higher grain yield production, higher leaf K+ concentration, K+: Na+ ratio
and lower leaf Na+ and Cl- concentrations, Kouhdasht and Atrak were identified as
the most salt-tolerant genotypes.
کلیدواژه‌ها
Abiotic stresses؛ Plant ecophysiology؛ Stress physiology؛ Semi-arid agriculture
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