The Effect of the Decrease of Cohesion of Water on the Growth of Hydroponically Grown Tomato Plants
In our experiment, we tested the decrease of cohesion of water on Hydroponically grown tomato plants. To accomplish this, we grew 18 plants and placed 6 plants in each of three tanks, one with a specific gravity of 1.0000 (no decrease in the cohesion of the water), another with a specific gravity of 1.0120 (slight decrease in the cohesion of the water), and a third tank with the specific gravity of 1.0170 (high decrease in the cohesion of the water). We then measured the growth of the plants daily and recorded the data. After we collected all of the necessary data, we graphed the daily heights of each of the plants and the growth per day of the plants. With this, we were able to conclude that the plants in the tank with a specific gravity of 1.0000 and no decrease in the water's cohesion grew the best.
Research Done By:
Eric Stephenson
Sterling Heights High School
Emily Willmer
Lake Shore High School
Warren Consolidated Schools