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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 4, No. 4, 2007, pp. 463-470
Bioline Code: st07060
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 4, No. 4, 2007, pp. 463-470

 en Germination and growth of six plant species on contaminated soil with spent oil
Sharifi, M.; Sadeghi, Y. & Akbarpour, M.

Abstract

Effects of contaminated soil with spent oil on germination, above ground height and biomass of six herbaceous plant species were investigated by conducting a general phytotoxicity test and growth inhibition assessment. Six local plant species were used in order to investigate plant’s ability to germinate and survive in a gradient of contaminated soil with spent oil. The species selected for this experiment include one species of Fabaceae ( Medicago truncatular check for this species in other resources ), four species of Gramineae ( Bromous mermis check for this species in other resources , Secal seral check for this species in other resources , Triticum sativa check for this species in other resources and Agropyron deserterum check for this species in other resources ) and one species of Linaceae ( Linum ussitasimum check for this species in other resources ). Inhibitory effect of contaminated soil on germination, height of young seedling and dry weight were measured. In this study an artificial soil with a light texture included 85% sand, 10% silt and 5% clay was used. The exposure to the contaminated soil carried out using four consecutive concentrations (25, 50, 75, 100 g/kg). Results obtained from the current investigation indicate that all species perform dose-dependent responses to the contaminated soils. Reduction in germination, above ground height and biomass for all species were significantly (P < 0.05) different when compared to their controls, however, Medicago truncatular performed the highest and Linum ussitatisimum the lowest inhibitory effect for germination, above ground height and dry weight of seedling.

Keywords
Spent oil, germination, phytotoxicity test, contaminated soil

 
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