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The Effects Of Varying Concentrations Of Crude Oil On The Growth Of Brassica Rapa

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The Effects of Varying Concentrations of Crude Oil in Soil on the Growth of Brassica rapa Andrew Townsend Biology Department Birmingham-Southern College Birmingham, AL October 26, 2014 Abstract The effects of Crude oil on Brassica rapa was tested by the introduction of crude oil to the soil the plant was growing in. The crude oil/soil concentrations ranged from 0-400mg/g. We found that low concentrations of crude oil (5-10mg/g) was beneficial or had no adverse effects to the growth of Brassica rapa. For concentrations greater than 10mg/g the crude oil had a negative effect on the growth of Brassica rapa. We found that as the Concentration of crude oil increased passed 10mg/g the negative effects to Brassica rapa also increased. Introduction Crude oil can be refined to produce many kinds of combustible fuels (International Agency for Research on Cancer. 1989), but when introduced to the environment it can be harmful. Some of the major ill-effects are the decrease in growth or death of some plant life and organisms. Seed germination can also be affected by the introduction of crude oil to the surrounding soil (Henner et al., 1999). When crude oil is introduced to water in high concentrations, the growth of organisms are effected in a negative way and can cause plants to stop undergoing photosynthesis and death can ensue (Pulich et al., 1974). Brassica rapa is commonly referred to as “field mustard” and is part of the rapeseed group. Brassica rapa was chosen for

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