Testing the Effects of Radiation on Plants

889 WordsOct 25, 20124 Pages
Abstract The purpose of this lab was to see if radiation has an effect on the cultivated radish seeds that we used. From the observed data that we collected, we were able to conclude that when seeds are exposed to radiation, it affects how they grow, if there is any growth at all. Introduction Radiation is an important environmental abiotic factor for plants, and one small section of the electromagnetic radiation spectrum, is called the Photosynthetically Active Radiation (PAR), provides the energy to drive the light reactions of photosynthesis. Such radiation damages biological tissues by detaching electrons from the atoms that make up organic molecules. The results include radiation poisoning, cancer, and elevated mutation…show more content…
The 50-mrad radish seed never experienced any growth. The 150-mrad radish seed shot up about 4 cm the first week and then the second and third week stayed at the same height. From these observations we can tell that there was a significant difference between the control and the radish seeds that were inflected with radiation. The ones that contained radiation either experienced no growth at all, experienced stunted growth, and were never as tall as the control. I reject both null hypothesizes, and fail to reject both alternative hypothesizes since the radiation did prove to have an effect on the radish seeds. Conclusion From the obtained data, we were able to fail to reject the alternate hypothesizes. Gamma radiation levels had effects on the radish seeds. We were able to determine these levels by comparing these results to the control which was just a radish seed that was never altered by any radiation for as far as we know. Works Cited Glenn, S. (2010). Effects of radiation on plant growth & development. Retrieved from http://www.ehow.com/how-does_5525557_effects-radiation-plant-growth- development.html Hollosy, F. (2002). Effects of ultraviolet rays on plant cells. Micron, 33, 179-197. Retrieved from http://www.pucrs.br/fabio/fisiovegetal/EfeitoUV.pdf Keith, Edward, Charles Messing, and Emily Schmitt. Laboratory Exercises in Biology. Second. Dubuque, IA: Kendall Hunt,
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