The Effects of Different Oxygen Levels on the Germination of Corn and Radish Seeds By LeNaiya Kydd Lab Partners: Michele Morris, Billy Jenkins, Taryn Flink BIOL 3427-005, September 25, 2014, Sarah Mahon This experiment was designed to test the germination of two different kinds of seeds based on the level of oxygen present during this period. The species used in this test were corn and radish seeds. The seeds were split into two groups and placed in two jars, one jar filled to the top with water, meaning that no oxygen was present, and the other with a small amount of water, meaning that there was oxygen available. They were left alone to geminate for about a week. At the end of the week the corn seeds did not grow at all when there was no oxygen present, but a majority of them did grow in oxygen. The radish seeds grew in both environments, but more seeds grew in the presence of oxygen than in no oxygen. Based on the results of the experiment, seeds do grow better when there is oxygen available, but it is …show more content…
The next step was to make “rag doll tester”. To do this two paper towels were moistened with water and spread out completely. On one of the paper towels five seeds of the corn were placed along one side, and then the towel was folded so the edge would cover the seeds. On the new folded edge of the paper towel five seeds of radish were placed along the side. After this the towel was loosely and completely rolled up. The ends were tied with string to secure the seed from falling out. These steps were followed exactly the same for the second paper towel. The next step was to fill one jar completely with water and the other with a small amount of water, about an inch. One “rag doll tester” was placed in each of the jars and held in place with the lid. The last step was to place the jars in the same place to minimize the difference in environment factors