Volume 7, Issue 2 (summer 2003)
jwss 2003, 7(2): 241-250 |
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S. A. M. Mirmohammady Maibody, A. Amini, J. Khajeddin. Potential of Two Aleuropus Species in Lowering Soil Salt Levels and Reclamation of Saline Soils. jwss 2003; 7 (2) :241-250
URL: http://jstnar.iut.ac.ir/article-1-479-en.html
URL: http://jstnar.iut.ac.ir/article-1-479-en.html
Abstract: (21841 Views)
In this study, the potential use of halophyte grasses, Aleuropus littoralis and A. lagopoides, on soil desalinization and lowering soil salinity was investigated under glasshouse conditions. The seeds of two species were collected from Rodasht area in Isfahan and grown with four salinity treatments obtained from different types of collected soils and replicated three times. Electrical conductivities of the four soil treatments were 12.4, 29.5, 43, and 69 dS/m. The results of mean comparison showed that shoot and root dry weight, sodium contents of dry weight and Na/K ratio were significantly different in both salinized species. Both species effectively reduced soil electrical conductivity by 23 to 42.5%. This was mainly due to ion absorbtion, and consequently, from Na+, Cl-, Mg2+, Ca2+ ionic reduction. In general, considerable amounts of ionic absorbtion and total soluble salt secretion through their salt glands appeared to have the most pronounced effects on decreasing soil salinity. Regarding 50% salt excretion by these species, growing these grasses could be a possible way to decrease soil salinity by grazing or harvesting salt crusted foliage from the site.
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