The Effect of LED, UV, and Fluorescent Light on Lactuca Sativa in a Hydroponic System
School Name
Heathwood Hall Episcopal School
Grade Level
10th Grade
Presentation Topic
Botany
Presentation Type
Non-Mentored
Oral Presentation Award
2nd Place
Written Paper Award
1st Place
Abstract
Hydroponics has revolutionized the world of agriculture. Its advancement has led to the successful growth of plants without soil. Many studies have compared plants grown hydroponically to plants grown traditionally in soil. This study was conducted to observe the effect of LED, UV, and fluorescent light on the growth rate of Lactuca sativa, compared to a control group grown under natural sunlight. It was hypothesized that plants grown under natural sunlight would have a higher growth rate than plants grown under other lighting. During this experiment, plants were grown in hydroponic systems under respective lighting for 4 weeks. Their height and number of leaves were measured three times a week and both the average height and average number of leaves were tested in single factor ANOVA tests. The statistically significant data was further analyzed in post hoc testing. The results obtained for average height under various lighting groups was not statistically significant in contrast to the data for average number of leaves which was statistically significant. After further analyzation, it was concluded that the plants grown under UV light had a significantly lower number of leaves than the plants in other groups. The null hypothesis that if lettuce is exposed to UV, LED, fluorescent, or sunlight, then there will be no variation between the different lighting groups was rejected.
Recommended Citation
Parmar, Serena, "The Effect of LED, UV, and Fluorescent Light on Lactuca Sativa in a Hydroponic System" (2019). South Carolina Junior Academy of Science. 211.
https://scholarexchange.furman.edu/scjas/2019/all/211
Location
Founders Hall 111 B
Start Date
3-30-2019 9:15 AM
Presentation Format
Oral and Written
Group Project
No
The Effect of LED, UV, and Fluorescent Light on Lactuca Sativa in a Hydroponic System
Founders Hall 111 B
Hydroponics has revolutionized the world of agriculture. Its advancement has led to the successful growth of plants without soil. Many studies have compared plants grown hydroponically to plants grown traditionally in soil. This study was conducted to observe the effect of LED, UV, and fluorescent light on the growth rate of Lactuca sativa, compared to a control group grown under natural sunlight. It was hypothesized that plants grown under natural sunlight would have a higher growth rate than plants grown under other lighting. During this experiment, plants were grown in hydroponic systems under respective lighting for 4 weeks. Their height and number of leaves were measured three times a week and both the average height and average number of leaves were tested in single factor ANOVA tests. The statistically significant data was further analyzed in post hoc testing. The results obtained for average height under various lighting groups was not statistically significant in contrast to the data for average number of leaves which was statistically significant. After further analyzation, it was concluded that the plants grown under UV light had a significantly lower number of leaves than the plants in other groups. The null hypothesis that if lettuce is exposed to UV, LED, fluorescent, or sunlight, then there will be no variation between the different lighting groups was rejected.
