What’s the effect by different wavelength?

Photosynthesis required for plant growth is inseparable from light, but light of different wavelengths has obvious differences on plant growth. Red light and blue light can provide the most abundant nutrients for plant growth. Blue light – conducive to the growth of plant stems and leaves, red light – conducive to plant flowering and fruiting. Different wavelengths have different effects on plant growth.

200-280nm strong ultraviolet C-band has serious adverse effects on plant growth.

280-315nm ultraviolet b-band, easy to cause plant fading

315-380nm ultraviolet A-band has no effect on plant growth

The 380-400 nm visible light band begins, and the chlorophyll absorption process begins. UV protective lamps or plastics can effectively block the light with wavelength below 400nm.

400-520nm includes purple light, blue light and light green light. Chlorophyll absorbs light in this band and promotes photosynthesis. This band of light contributes to the growth of plant stems and leaves.

520-610nm includes green light, yellow light and orange light. The absorption of chlorophyll and other pigments such as carotenoids is weak.

610-720nm red light band. Chlorophyll has the strongest absorption and greatly promotes photosynthesis. This band of light contributes to the flowering and Fruiting of plants.

720-1000nm near infrared band. Chlorophyll is basically not absorbed. Light in this band has some effects on flowering and germination.