Grow Mediums Gorilla Tape to Block Water?????

[Alex Delarge]

I think you self-diagnosed, mate! ...at least from what I can see in these pics... Water/nute' soln. can cause this by 'lensing', when the droplets act like small lenses and magnify the light enough to damage tissue... Now, doing spraying during dark cycle isn't much better, inviting fungal attacks, so two important things will help prevent this, either way: Using a water spreader/wetting agent, which takes the surface tension out of the water/soln. and makes it sheet, rather than bead up.. works better for all purposes too,.. more surface area covered=more absorbed by the plant,.... and of course, good, gentle air movement! Otherwise, I do see some minor leaf curling, which may be within normal behavior, or ever so slight nute' burn... remember to go very easy with nute's on auto seedlings! As for sanding the seeds, it's unnecessary,... MJ seeds don't have a shell that tough to warrant this,... if they fail to germ, it isn't because they were unable to crack the coat! Also, forcing the shell apart isn't a good idea, for the same reason... germ times can be pretty variable, 1 to several dyas, but I do get the reason behind some impatience, bro'! Let nature do her thing,... millions of years and countless seeds can't be all wrong! :

Thank you for the advice!!!! I have been mentored by a genius, and am just starting to gain experience. I have seen articles suggesting that the genetically engineered AF's, tend to have a tougher coat. I live in a very humid area, which may be the factor. Also the variety. White Widows AF's from G13 labs (actually seeds I made from them) are at about 95% germ rate. Have Always had problems with Think Different, had good results with AutoMazar.

Thanks Again!!

 

[Alex Delarge]

The seedlings that hit water 8 days prior, are from a similar batch, that I left in paper towels till 1/4 inch root, which took from 4 to 7 days, went into rockwool, and are the other plants now, hit water 9/17. The aero's have massive root systems, nice and white herringbone root structures, which will go to coir Sunday.

Also plants with those problems were at the drain end of aeroponic rails, which does not drain completely. Lights are cooltubes with fan, in cool area, about a foot above them (400 watt).

I am very open to doing comparative experiments, here and then with others trying to replicate. Maybe AF could do some contests for the best replicable technique.

 

[Epic Genetics]

I think you self-diagnosed, mate! ...at least from what I can see in these pics... Water/nute' soln. can cause this by 'lensing', when the droplets act like small lenses and magnify the light enough to damage tissue... Now, doing spraying during dark cycle isn't much better, inviting fungal attacks, so two important things will help prevent this, either way: Using a water spreader/wetting agent, which takes the surface tension out of the water/soln. and makes it sheet, rather than bead up.. works better for all purposes too,.. more surface area covered=more absorbed by the plant,.... and of course, good, gentle air movement! Otherwise, I do see some minor leaf curling, which may be within normal behavior, or ever so slight nute' burn... remember to go very easy with nute's on auto seedlings! As for sanding the seeds, it's unnecessary,... MJ seeds don't have a shell that tough to warrant this,... if they fail to germ, it isn't because they were unable to crack the coat! Also, forcing the shell apart isn't a good idea, for the same reason... germ times can be pretty variable, 1 to several dyas, but I do get the reason behind some impatience, bro'! Let nature do her thing,... millions of years and countless seeds can't be all wrong! :

yeah gotta agree , also see maybe over water/lack of oxygen possibly only lack of air but most likely the spraying is putting everything over the edge

pump up airation if possible and stop spraying/misting them

best of luck and peace :Cool:

 

[Alex Delarge]

Will throw an air pump on now. Did not remember if aeroponic needed it. Only running this way till Sunday, then coir. I have never seen such beautiful roots before. If I can get someone to take pic's while I hold, I will.

I am more amazed by the new seedlings, which have outpaced anything I have done so far.

Be Well!!!