Science help ! ?

Question

does anyone know how and why does full spectrum lighting affect plant growth?

Answer 1

Full spectrum lighting.... It actually isn't really necessary. Plants use wavelengths in the blue and red region mostly, but can convert other wavelengths (colors) for their use. They don't use green which is why it is reflected back and the plant looks green.

The wavelengths that are absorbed by the plant are used to drive photosynthesis which is where the plant gets its energy. We get energy from other animals and plants, plants get their energy straight from the sun! It's no coincidence that plants use the visible spectrum either (red though violet). The sun produces most of it's energy in that spectrum (full spectrum means visible light/wavelengths only I think).

Full spectrum lighting (not knowing what the crop is) is pretty good, but you can do with fluorescent light for most crops. There are good wavelengths of light in fluorescent lighting to help plants grow up big and strong! Incandescent (normal tungsten bulbs) on the other hand, lack some of the wavelengths in enough intensity I think. Fluorescent lights with a kick of incandescent are usually used to grow plants in my experience (someone else could validly contradict that though).

Intensity (up to a certain point) is what matters. The stronger the light, the more energy the plant can collect. Most artificial lighting can't come close to being intense enough, so more is better! Anywho, hope this answer gives you some helpful information!

Answer 2

Full spectrum lighting should be good for plants. Plants contain various pigments that absorb various wavelengths of light. Full spectrum lighting should fill the bill for all the pigments.

There sure are plenty of websites where these lamps can be purchased for hydroponics.

Answer 3

green chloropyll helps phot synthesus