Vertical Farming LED Light Study

A botanist conducted a study to investigate how different light wavelengths affect the growth rate of hydroponic sweet basil plants.

Sixty basil seedlings, all of the same cultivar and age, were selected. Before the treatments began, the botanist recorded the initial wet biomass of each seedling.

The 60 seedlings were then randomly allocated to three environmental chambers with 20 seedlings in each:

• Chamber A was exposed to a continuous red-dominated LED light spectrum (660 nm).
• Chamber B was exposed to a continuous blue-dominated LED light spectrum (450 nm).
• Chamber C was exposed to a continuous full-spectrum white LED light spectrum.

The temperature, humidity, and nutrient solution levels were kept constant across all chambers. At the end of a 30-day cultivation period, the botanist recorded the final wet biomass for each plant. The results showed that the average increase in biomass for the plants in Chamber A and Chamber B was significantly higher than those in Chamber C.