Germination and growth of six plant species on con

Authors: M Sharifi Y Sadeghi M Akbarpour

Publish Date: 2007/09/01

Volume: 4, Issue: 4, Pages: 463-470

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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 four species of Gramineae Bromous mermis Secal seral Triticum sativa and A gropyron deserterum and one species of Linaceae Linum ussitasimum 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 dosedependent responses to the contaminated soils Reduction in germination above ground height and biomass for all species were significantly P 005 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

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