| Popis: |
The effect of petroleum pollution on soil was assessed for its impact on the adaptation properties of 12 agricultural and 5 wild plant species. The influence of petroleum on seed germination was determined at concentrations of 1%, 3%, 4%, 6%, and 8% in the soil. Wild plants exhibited lower germination rates compared to cultivated species. For most cultivated plants, a 1% concentration of petroleum did not inhibit seed germination, but germination decreased to 60-80% of the control under concentrations of 2% and 4%. In soil containing 6% petroleum, peas, clover, alfalfa, and sunflower exhibited germination rates of more than 50%, while alfalfa and sunflower germinated only at an 8% concentration. The assessment of soil phytotoxicity revealed that sunflower plants are the most resistant to petroleum pollution. A comparison of resistance to soil petroleum pollution among four sunflower varieties showed that the ’Bombardir’ cultivar exhibited the best growth parameters. |
