The purpose of this experiment is to attempt to show which light is the best for basil growth. Since basil is used in both medicine and culinary arts, enhancing its growth is beneficial to multiple industries. The proposed hypothesis is, If basil is grown under both red and blue light, then it will grow the tallest. In the experiment, (by Shiga et al, 2009), the Effect of Light Wavelengths and Irradiation Period on Rosmarinic Acid Production in Basil was investigated. To determine the effect of light quality on the antioxidant activity and phenolic context of basil, seven 6-week old seedlings were grown under constant white, red, or blue light. The plants were grown under these light conditions for 14 days. The top leaves were sampled 7 and 14 days after being planted. The results of this experiment showed that rosmarinic acid increased under all conditions after 14 days of irradiation, but the basil grown under only blue light had the lowest amount of rosmarinic acid content (Shiga et al, 2009). This experiment is closely related to the proposed experiment because in the proposed experiment, red, blue, green, white (control), and red/blue lights are going to be tested on basil growth. This experiment supports the proposed hypothesis, in that blue light …show more content…
Combined red/blue LED lights were proven to be a good lighting source for growing many plants. Seeds of Boston lettuce were germinated in rockwool cubes and grown for 15 days in an environmentally controlled space. For the IV of this experiment, three different light sources were used: red/blue LEDs, red/blue/white LEDs, and fluorescent lamps (used as the control). Shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, shoot/root dry weight, leaf area, and specific leaf area were