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Fan blowing on sprouts?

xswesx

Member
Should I have a small fan blowing on even sprouts? 1 inch high

I know fans help build stronger stems, im just not sure if i should have them on at an early stage

thanks
 
NOOOOOOOOO!!!!!!

DON'T BLOW ON THEM DIRECTLY, FOR THE LOVE OF ALL THAT IS HOLY, DON'T DO IT!!

If you want stronger stems then supercrop!



That is a stronger stem and you won't get anything like it by blowing on your plants with a fan. All that the fan will do is make them a tiny bit stronger and MUCH more likely to be male. Keep air currents around the plants to a minimum. If their foliage is constantly twitching and moving about then there is TOO MUCH direct air-flow. Set up your grow space to use negative pressure to evacuate hot smelly air. This keeps temps under control without blowing the plants about.

Your actions as a gardener, especially early in the plant's life, can have a HUGE impact on whether the plant goes male or female. Blowing on the plants with a fan is one of the most common un-realized causes of un-wanted males. If you must have a fan, do as ~fvk~ says. Blow around them, not on them.
 

xswesx

Member
so now you are saying having a fan blowing on plants does not promote stem growth? or so little its not worth it? my seeds are feminized btw
 
The fan will help with stem strength a tiny bit. The male-stress it induces is far from worth it. Supercrop instead. The plants will stay shorter, be more vigorous and have vastly improved nutrient uptake abilities. Wind-whipped plants will still be tall and scrawny with poor nute delivery, they just resist tipping over a bit better. Supercropping FTW :joint:

It doesn't matter that your seeds are fem. Femenized seeds are just inbred forced-hermie females, there's no magic going on with them. Despite the name a fem seed can produce either a female, hermie or male! Fem seeds just slant the odds in favor of getting females, doesn't mean you will get them automatically. I get 100% females from un-feminized seeds all the time, environment is much more important than genetics for controlling male/female.
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
If you want to toughen them up, beat them up by hand. Give the stem a wiggle. Brush your hand back and forth against the top.
 
Hey there freezerboy! You'd figure that supercropping would be more popular with THIS:

35769DS_1-16-9-TopColas.jpg


Image of yours running around. Horizontal colas may not be as pretty as those christmas-tree-shaped vertical ones, but when it comes time to throw the yield on a scale I know which kind I want!
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
Thanks. That was Super Crop and ScrOG combined. Note the wavy nature of the stems. They were tied down about every other inch. I'll super crop a stem more than once but, 6 times a foot is too much for me.
 
Supercropping+ScrOG > all other training methods, at least in my book :joint:



But its wonderful how compatible supercropping is with other training methods. It goes great with LST and other string techniques. Its also pretty good on its own, bending larger branches and leaves downwards so that more side-shoots can find their way up to the canopy. I've seen some really beautiful plants in some very eccentric shapes that had nothing done to them but a free-standing supercrop job.
 

madassimi

Member
good advice from everyone!

that's right, you don't want the air to blow on the seedlings / plants directly. in addition to what others said, it also dries out the plants.

i have my fans, set to the lowest setting, pointed above the plant canopy and towards the lights. the fans cools off the lights and indirectly blow air into the plants below.

the plants receive an extremely gentle vibration of air with no fan directly assaulting them.
 
Really? How...

Its not super-difficult. All it takes is tight control of several environmental factors for the plants. Blue light during veg, long nights, never cut the plants, don't blow on them with a fan, a high nitrogen-to-potassium ratio and other factors.

We've been discussing it at length over here:

http://www.icmag.com/ic/showthread.php?t=135932

And if you want physical proof then just head over to the grow show link in my sig. I'm 11 days into flower and there are still absolutely no signs of sexual orientation. Sexual expression of the plants has been supressed and will only begin once stretching has completed. My plants from mixed seed will bud upon my command!
 

Maj.PotHead

End Cannibis Prohibition Now Realize Legalize !!
Mentor
Veteran
The fan will help with stem strength a tiny bit. The male-stress it induces is far from worth it. Supercrop instead. The plants will stay shorter, be more vigorous and have vastly improved nutrient uptake abilities. Wind-whipped plants will still be tall and scrawny with poor nute delivery, they just resist tipping over a bit better. Supercropping FTW :joint:

It doesn't matter that your seeds are fem. Femenized seeds are just inbred forced-hermie females, there's no magic going on with them. Despite the name a fem seed can produce either a female, hermie or male! Fem seeds just slant the odds in favor of getting females, doesn't mean you will get them automatically. I get 100% females from un-feminized seeds all the time, environment is much more important than genetics for controlling male/female.
the fan will help alot in building strong stem structure on the plants i use a small 3inch fan that blows underside of lights but also hit seedlings tops. i have no problems with extra males in the garden because of my pratices
i just keep close eye on them and mist them with ph'd water twice each day untill drainage is achieved.
 
You don't have any problems with extra males because you use clones!

I'm glad you found a method for adding strength to the stems of your plants very easily. I'm sure setting them up with a little fan to whip them around is way easier than supercropping.

But I'm saying that method is weak sauce. Fan-blown plants can't hold a candle to supercropped monsters in terms of strength, stem diameter and nutrient uptake ability. It isn't even a contest, you're fan-blown plants will never get close. If you are running few enough plants to where it isn't inconvenient to do so (basically, if you grow only for your personal stash) supercropping will always deliver superior results. And, when growing from seed, it will help your female/male ratio instead of hurting it. :joint:
 
Z

Ziggaro

I don't understand how a fan can create males due to stress yet supercropping I would think is MUCH more stressful ?
I've always kept air flow so that the plants moved slightly in the breeze and had even male/female ratios.
 
"stress" is a very misleading term

Gardeners look at that word and think of it in the context of people. Being "stressed-out" or whatever.

Stress in terms of cannabis plants is very different. Its not how much physical abuse they take, its what kind of abuse. Supercropping is very hard on the plants and very stressful to the cells. But its a good kind of stress. It makes the plant produce vastly more auxins and growth hormones in order to repair the damage and keep growing. After the damage is fixed, these hormones don't just suddenly go away. Heavy supercropping makes a permanent change to the internal chemistry of the plant.

Because sex declaration is mostly based on the plants' chemistry (and actually very little on genetic pre-disposition) this shift in hormones has a big influence. Through coincidence, the elevated hormone levels in a supercropped plant are very similar to the elevated hormone levels in a female plant.

Blowing the plants with a fan is much less physically taxing than supercropping. Only gardeners with badass plants in good mediums with good nutes and good lighting need apply. The plant must be strong and healthy to overcome this sort of training. Its the chemistry shift going on in the plant because of supercropping that helps us get girls. And it contributes even more. Every cell above the soil level in a cannabis plant is photosensitive They can detect light, but more importantly, they can detect how much light is reaching those particular cells. Changes in light stimuli can lead to changes in the plant's internal chemistry. Cells in the plants' growth tips are extra-sensitive to light levels and changes. The plant 'knows' when the majority of its growth tips are getting good light. This causes even more chemistry shift in a 'female' direction.

It just isn't about how much physical punishment the plants go through, that in truth has nothing to do with 'stress' in the context of sexing. The stress you need to watch out for is stress caused by too much heat, or light poisoning, or too high of a potassium/nitrogen ratio, or a fan constantly blowing on the plants :joint:
 

Maj.PotHead

End Cannibis Prohibition Now Realize Legalize !!
Mentor
Veteran
a fan constantly blowing on the plants

is just what my plants get from sprout to chop and i have n/p with hermies extra males or any other ka ka



{ Its the chemistry shift going on in the plant because of supercropping that helps us get girls.}

WT now i've read about everything
 
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