At the beginning we will tell you what UV radiation is. It is aboutelectromagnetic radiation, ihthe wavelength is shorter than that of visible light. But longer than rentgene radiation. Plhere is one rule. If the wavelength is shorter, the energy is higher, and the longer the wavelength, the lower the energy. The solar world is mentioned as a natural UV sourcetlo. UV radiation can be divided into several types. We read about them in the following lines.

UV types:

  • UVA-It is a radiation that is considered harmless, of course not unlimited. Man is exposed to this radiation practically permanently. It causes skin aging at higher levels . As far as plants are concerned, it has no effect on them, as the UVA plant perceives it as molight and ait does not affect the formation of THC and resin. Wavelengths range between 315-400nm. Sometimes it is also called the so-called. "black light" .

  • UVB- This radiation is mostly absorbed directly in the ozone layer. For the organism it is more dangerous because of the energy UVB rocomposed of proteins, pWhen DNA is struck cancer . It also has a negative impact on vision. It can destroy sticks, suppositories, ganglion cells and nerve endings in the cornea. Nit only affects humans but also plants. For example, he is negatively involved in photosynthesis. Thats what we thought was negative. From a positive point of view, the effect of UVB on the skin is involved in the formation of vitamin D3that ensures the proper functioning of the immune system. His long-term deficiency makes the body more susceptible to acute respiratory infections and influenza. It is interesting that it can penetrate several meters of water. Clothes, glass, clouds or other things can catch it. The wavelength range is between 280 and 315nm .

  • UVC- Radiation of this type is very carcinogenic to organisms The difference between UVB and UVC is that UVB only penetrates several layers of cells, whereas UVC has a much larger penetration rate. It is used for disinfectionkciwateror kbacterial destruction in hospitals and the food industry . Therefore, it is also often referred to as so-called. disinfection radiation Wavelengths are less than 280nm .

Effects on plants:

Indoor hemp cultivation is used UVB radiation. The most accessible tubes are solarium. Certain rules apply here.

  • it must not be lit for too long, since UV is actively involved in the decomposition of THC to CBN
  • it must not shine too much, otherwise the plants will burn
  • To shine with UV light is only necessary at the end of the flower

UVB acts as a stressful factor that induces increased THC and resin production which is the main goal. So the plant is trying to protect itself from the negative effects.

UV radiation affects stem branching in plants, reduces long growth, causes leaf enlargement, reduces photosynthesis during increased exposure, accelerates tissue aging, increases protein content and photoactive flavonoids.

Pro příklad give a couple of UV emitters:

Fluorescent tube Reptilight that can be purchased at 15, 18, 25, 30 or 36W. It has an optimal UVA and UVB balance where UVA does 30% and UVB 4%.

Among others, the LVM 125 high pressure discharge lamp may be includedUV 125W / E27 LUXTEN or LVM 160 mixed high pressure discharge lamp UV 160W / E27 LUXTEN.

SunLux UV 50W PAR 30: intensity 3300lm, temperature6000K, average life 6000hours.