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She's training herself. The bottom branches are stretching perfectly to match the top growth.
(lemmy.world)
Some of the wavelengths my light has helps with it. The light has added IR, UV and FR diodes.
Each wavelength induces different effects on the plant, the IR and UV simulates the plant being covered by foliage, so it triggers a response to elongate the internode lengths.
I have never seen UV have a positive effect, that's wild