(Part 2)
Though Far infrared light 730nm is little significance for photosynthesis, but it’s intensity and ratio to 66nm deep red light play an important role in plant’s height, internode length and other morphologies.
Wavelength less 380nm called UV light. According to the physical and biological properties of ultraviolet light, wavelength 320-380nm called UVA light, 280-320nm called UVB light, 100-280nm called UVC light.The UV light species that reach the ground 95% are UVA light.
In photosynthetically active radiation, UV and far red light in the solar spectrum have regulatory functions on plant growth. UV radiation reduces plant leaf area, inhibits hypocotyl elongation, reduces photosynthesis and productivity, making plants vulnerable to pathogen attack, but can induce flavonoid synthesis and defense mechanisms.
Can use LED light for growing plant indoor ?
Yes, in winter, shine light is not enough, farmers will use LED light for growing plant indoor, LED light is environmentally friendly, no harmful substance of mercury.
Normal LED lights are no useless for raising succulents, but LED supplement light can be used for raising succulents.
Need to pay attention to some points as blow when using LED supplement light:
LED Supplement light can only be sued as temporary supplement light, can not completely replace sunlight.
LED supplement light can only use in short term ( less 2 months in hard year), when natural light is not enough.
The common red and blue LED plant supplement light is similar to scattering light, and has little effect on the growth of succulents.
Can LED lamp be used on plant as LED grow light ? No. Common LED lamp is only white spectrum, no other color light spectrum, can not make plant grow better.
