Effect of Led, UV, and Fluorescent Light on Hydroponically Grown Lactuca Sativa

Overview

Hydroponics has revolutionized the world of agriculture. Its advancement has led to the successful growth of plants without soil. In light of impending climate change, hydroponic systems provide especially innovative alternatives to traditional farming, providing controlled environments for plant growth. Many studies have compared plants grown hydroponically to plants grown traditionally in soil. The objective of this study was 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 showed that average height under various lighting groups was not statistically significant. However, data for average number of leaves showed that the plants grown under UV light had a significantly lower number of leaves than the plants in other groups. In lettuce, the leaves of the plant are consumed and are a better barometer to measure yield. Further research is needed to tap the potential of hydroponics to increase annual yields, make better use of space, and improve the quality of crops.

Competition history

• AJAS 2020 Category not listed

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