Into week three of flowering:
- Need to up CalMg this week cause all my last grows with this strain the plants were stressing and showing signs of Mg deficiency I think.
- The buds are stacking up pretty tight.
- The top of the plant is showing some red veins AGAIN, don't know if it is genetics? Or is it too much light? ANY SUGGESTIONS?
- Usually what happens is that after week three top of plant will show red veins and some leaves will turn light green yellow. What type of deficiency is this?
Thanks in advance for the help.
Happy growing,
BM
4TwenTee
*****Update on LIGHT STRESS:*****
Okay I think I got this figured out. Since my plant is showing the following symptoms:
- Slow yellowing of top of cannopy
- Fan leaves pointing up in a steep angle
- Leaves are tacoing up a bit with sharp pointy serrated leaves pointing up
- Veins are turning purple and some leaves are showing green veins and yellowing of outer part of the leaf
REASONS FOR THE SYMPTOMS:
- Since the light is too close to the top of the canopy, although my light is running at around 60% and it is at least a meter away from the light. I think because this was a mother and basically she is accustomed to top canopy PAR of around 180-220 and she was measuring around 600PAR so that is just too much for the plant to handle. So I've lowered the light output so the top canopy is around 420 PAR.
- Also my humidity is pretty high at around 72% so I lowered it to around 65%
- The reason why the leaves are tacoing up to the light is because the canopy cannot take the high PAR, the temp at the top of the canopy is only 76F so that is acceptable, but the plant is trying the sweat due to the high PAR, but because the humidity was also too high it was not sweating as much as it should.
- The reason why a light stressed plant shows different deficiencies eg. magnesium and phosphate is due to the "extra sweating" that takes place, cannabis plants don't choose what they intake, if they need more water to sweat, extra nutrients will be absorbed and this will lockout some of the other nutrients in the solution.
**End of week update:
Tried multiple changes but still no luck on getting rid of red leaf stem.
- Added a 1 hour sunrise and sundown light regiment
- Decreased Humidity to 65% from low 70's
- Top of canopy PAR decreased from 600 to 350.
Leaves red stems still not going away and top of canopy still trying to get rid of moisture with fan leaves pointing up.
If anyone can chime in that would be great thanks.