Clients who grow indoor lights often ask why some marijuana stems are red and others greenGenes cause red stems.

Some cannabis varieties naturally have the red stem gene. Variety names that contain color names, such as Purple, usually have darker stems, which is a regular situation.

1. The low temperature caused the stem to turn red.

Phosphate absorption slows down at lower temperatures.It turns the anthocyanins in hemp red.

2.Light burns causing red stems

A common theory is that light burning will cause a hemp stem to turn red.In particular, the reddening of the branches mainly occurs on the side facing the light directly.The side facing away from the light, or in the shadow of the branch is still green. However, this cannot be explained by the fact that indoor light intensity (500-800 PPFD) is much lower than outdoor light intensity (1200 PPFD). We are more likely to believe that the light spectrum of the room is not appropriate, which leads to the red stem problem.Although the spectrum of indoor. Dutch lamp small sun is most similar to solar illumination, its spectrum can not be adjusted, coupled with the rapid aging of the lamp tube, it is very easy to cause spectral abnormality, and the probability of red stem will be much higher. This situation can be improved by replacing the tubes or upgrading high-end LED growth lights with an adjustable spectrum.

3.Bacteria infection.

The red color of the hemp stem is also a form of resistance to the bad environment, just like when a person has a cold, the virus gets in, and the body will fight back.In particular, some of the new roots are very few, and the leaves are not very long, and the growth force is weak.Such as very high temperature, or very low temperature, and relatively dry environment, too alkaline land are bad environment.If there is too much moisture during the flowering period, the flowers are susceptible to gray mold disease, which also turns the stems and stems red.It starts with the branches and then the calyx and eventually the flowers and flowers will be affected.

Healthy hemp is resistant to all toxins. It is essential to increase the resistance of hemp and make the plant naturally healthy.However, our traditional cultivation process, which uses inorganic fertilizers such as tricolor water, has very strict requirements on the environment for the growth of hemp. It is difficult for hemp to resist the infringement of external conditions through its own system.