Plants grow best under red light and blue is good to im not sure about yellow mabe if your doing a science fair test on this use these colours brown,green,clear,red and blue i know because i did my test on this
sunlight
Sunlight is the best light for plants.
By putting the plants under the light and seeing which one does better.
a light-coloured shirt, light blue or pink will look best
All the colours of the rainbow have different wavelengths. For example, violet has short wavelengths, while red has long wavelengths. Visible light appears as white light because it is a mixture of all the colours. Also, chlorophyll is the principal pigment involved in photosynthesis. Chlorophyll absorbs all the different coloured wavelengths, but leaves green as the colour it reflects and as the colour we see.Therefore, white light is best to grow plants under because green light doesn't do much of anything for photosynthesis.
Red color of light
Yes, the color of the light will effect how the plant grows. If you put sa plants under a U.V light and the light color is red the plants will grow better than the U. V lgith color that is black.
green
balls
difine "best" and I'll answer that
Fluorescent light works for most of plants and even aquarium fish. But when it comes to special races of plants, such as mariguana or some philotherms, HPS or MH can achieve a better effect. Check the link below for more detail about fluorescent light.
Bright vs. Dim Bright light will cause the center of the plant to grow very tightly, and can cause 'sunburns' on the leaves. Not enough light will cause the leaves to reach up (and look like a celery plant!). Natural light vs. artificial light Some plants seem to do best with natural light, and others only seem happy under regulated artificial lights! You can experiment and see what your plant likes best. The temperature also has an effect on the plants, especially variegated plants!