Watts Best for Coriandrum Sativum?

Kayla G. & Sheighla K
8th Grade, Sculptor Charter School, Titusville Florida
Teacher: Paula Losner

Kayla G. and Sheighla Ks Science Fair project board

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Abstract: The question was to find out which florescent light was more efficient in growing plants in a hydroponics system. There are several different types, and the researchers wanted to know if there really was a difference for growing plants. We chose 40-watt light bulbs; sunshine, daylight, and residential quality. The researcher hypothesis was that the sunshine light would be slightly better at growing the plants.

The researchers set up a simple hydroponics set up found on the Internet. The researchers used cut ceiling grids and rock wool instead of hydroponic gravel because of the expense. Hanging light fixtures were attached to the wall. Commercial chemicals for the hydroponics systems were added and timers were used for the lights.

Our results showed there was a slight difference in the lighting systems. Sunshine has the tallest plants with an ending average height of 12 centimeters, daylight was second with an average height of 11 centimeters and residential was last with an average height of 10 centimeters.

Overall, this experiment was successful. Our hypothesis was correct; sunshine florescent light grew the tallest plants. A problem occurred with the rock wool. As this was the researcher’s first hydroponics system, they had not expected the plants to rot. Further study of hydroponics will be needed to correct the problem. I would like to continue this experiment without the hydroponics.