This project aims to explore the effects of different colors of light on plant growth. Sunlight contains various color lights, and many growers use artificial light to produce certain plants. The objective is to determine which color or type of light is best for plant development. Blue and red light are recognized as particularly significant for plant growth and the photosynthesis process.
The project involves labeling milk cartons and adding soil to them. Blue light, situated at the shorter end of the spectrum, plays a pivotal role in promoting vegetative growth and influences processes such as phototropism and bending. Light is required for plant growth and interacts with chlorophyll, the green pigment inside chloroplasts. Red and blue light are the most important for plant growth, impacting photosynthesis and flowering. A mix of 90 red light and 10 blue light provides the balance of light colors needed for most plant growth.
The hypothesis predicts that plants will grow better under blue, red, and yellow lights than under white and green lights. Green light will hinder plant growth as plants naturally reflect green. White light helps grow the healthiest plants, while blue light is the best due to its higher frequency and energy.
Bulbs with a color temperature of 2,700 Kelvin are beneficial for plants in the flowering and fruiting stages of growth. The best light for plant growth is blue, as studies showed that plants grown in blue light grew an average of 8.17cm height.
📹 How do different colours of light affect the growth of plants?
📹 Grow Lights 101: Best Plant Growth Spectrum Color? White vs Red/Blue LED + What is PAR & ePAR Light?
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