hey man what is your opinion on the deep red striping i see on the chem kesey and chos diesel etc..? it is so pronounced and is a stripe not full purpleing of the stem so i wouldn't think P deficiency or stress. i read on another forum a cpl ppl saying they always seemed to be the keeper phenos regfardless of variety and it shows as a seedling yet i cannot imagine how that is possible it would indicate flavor, smell and resin quality. have you found this to be true or do you have any idea what it is or means?
on a related note another person said he has noticed 10k spectrum causng pigmentation responses and i kind of concur in the sense the one time i flowered under a 600watt t5ho with 12 10k bulbes i got the most and deepest coloring i have ever gotten. supposedly he let a 10k spectrum 90watt led shione on 1 branch to demo this and low and behold that one branch purpled. after reading that post i think it is possible this has not been noticed before especaially since most growers don't use full spectrum indoors. the argument against this would be the sun is a 10k spectrum basically so why not outdoors, now that said maybe the sun is providing vitamin D, solar radiation or some other thing that counters the expression to a point.
I have not found a solid correlation between red/purple stripes and quality. I don’t know that I have seen clear solid striping on seedlings (
admittedly never looked specifically for them) but I usually notice it on older stems.
When growing out the Jabba’s Stash, I marked seedlings that expressed purple stems to see if they were precursors to Bubba dominance and later purpling and found that they did not show significant correlation in either dominance or later purpling. So I would be reluctant to make keeper decisions based on such early indicators.
Specifically, in regards to the Chem Kesey and Chocolate Covered Strawberries expressing the red striping, those are in their later stages (
Chem Kesey is fading in the picture), so perhaps this is due to deficiency.
I have experienced the most color variation when growing under full spectrum Blurple LEDs. If any plant had even the slightest tendency to express color, it would be intensified under these LEDs. The same cuts don’t express near the color variation under White LEDs so there is something to the spectral mixing that seems to play a role in this phenomenon.
