Paper Details

Effect of oil pollution on underground organs of Frankenia thymifolia and Poa bulbosa Turf in drought stress conditions

Nima Jaafari, Amirpouya Sarraf, Ghazaleh Vafaei

DOI: https://dx.doi.org/10.12692/ijb/5.6.68-74

Int. J. Biosci. 5(6), 68-74. September, 2014. (PDF)

Abstract:

Petroleum contamination of soil is a serious problem and of the most important pollutants of the soil throughout the world and country especially sides of oil refinery like Khuzestan province of Iran. The soil contamination could damage the organisms of the soil, including plants and microorganisms. Some plants and microorganisms are able to degrade the oil in the soil. Two types of plants including legumes and grasses have higher potential to be used for phytoremediation. Since grasses used in landscaping to cultivate these plants could achieve two aims: first clean the soil second have a green space. In the present study, a green house experiment was performed on Frankenia Thymifolia and Poa Bulbosa root yield to introduce these plants to spread the green space on contaminated and hot region in a factorial experiment with a randomized complete block design and eight replicates per treatment. Treatments have done on four levels of different rates of crude oil (0, 1%, 2% and 3% w/w) and four levels of Stress (No stress= FC, 4 1stress= 25% FC, 2 1 stress = 50% FC and 4 3 stress= 75% FC). Treatments have effect on root biomass and dry mass that significant at (p<0.01). The efficiency of root was in level 3% oil pollution that increasing traits than the non pollution in Frankenia Thymifolia and Poa Bulbosa for about 74.6%, 81.1%, 20.2 % and 15.1% respectively. But not similar results indicate from stress treatments. Interactive effect of crude oil and stress in these plants root yield was significant at (p < 0.01). The most wet and dry weight made from treatment of no stress and 3% Oil pollution. With due attention to these results cultivate of Frankenia Thymifolia In addition to development of green space in pollution area with oil was so effective but not recommended in hot places. So planting of Poa Bulbosa In addition to development of green space in saturate and erosion soil were recommended.