Thank you for the kind words BID. The purpling is actually more of a P deficiency, maybe a hint of moybdenum too. It just wierd how the shaded areas seem unaffected. She's under all CFL, and the temps are lower than her sister who is under HPS. I do have a tower fan oscilating between her and the HPS plants so....all three factors play a role I'm sure...Hope you are well my friend
That type of purpling isn't due to a deficiency! On the contrary, it's a normal process as the plant progresses to the end of its life. BTW, well fed plants do this in organic mediums.
Plants feed microbes and literally tell the microbes what kind of food they need....thus the anthrocyanins....(purpling). Not only is it a sign of healthy plants, the pigments are very healthy! They give the finished product important things....
Anthocyanin pigments and associated flavonoids have demonstrated ability to protect against a myriad of human diseases, yet they have been notoriously difficult to study with regard to human health. Anthocyanins frequently interact with other phytochemicals to potentiate biological effects, thus contributions from individual components are difficult to decipher. The complex, multicomponent structure of compounds in a bioactive mixture and the degradation of flavonoids during harsh extraction procedures obscure the precise assignment of bioactivity to individual pigments. Extensive metabolic breakdown after ingestion complicates tracking of anthocyanins to assess absorption, bioavailability, and accumulation in various organs. Anthocyanin pigments and other flavonoids that are uniformly, predictably produced in rigorously controlled plant cell culture systems can be a great advantage for health and nutrition research because they are quickly, easily isolated, lack interferences found in whole fruits, can be elicited to provoke rapid and prolific accumulation, and are amenable to biolabeling so that metabolic fate can be investigated after ingestion.
