I can eye a plant and guess it's sex after a few nodes 90% of the time, I play the game with new seedlings and I have amazing accuracy. BUT, I wouldn't be culling based on that alone, nor would I be posting that method and suggesting other's try it because it's 90% accurate ffs.
I have a line I'm working that has been consistent in picking the best phenos from stem rub smell, road kill skunk about 5-6 weeks from seed = killer phenos. But that's both males and females, both stink more or less the same, could be subtle differences but not enough to sex them. Too many variations in strains/crosses/phenos.Other guy was claiming greater than 95% accuracy based on smell alone. That means he misses less than 5 plants out of 100. Total Bullshit if you ask me.
Plants can smell like their fathers and be female and vice versa.
Yes, the stem rub is a useful technique for determining parental influence or favorable phenos not for determining sex.I have a line I'm working that has been consistent in picking the best phenos from stem rub smell, road kill skunk about 5-6 weeks from seed = killer phenos. But that's both males and females, both stink more or less the same, could be subtle differences but not enough to sex them. Too many variations in strains/crosses/phenos.
This technique is not for amateurs!
How can you tell if you have a male or female while in veg?
You first need to have at least two plants of the same strain. Both plants need to be about 2 feet tall for the scent to be strong enough. Some strains work even earlier.
The Steps;
1. place your finger around the main stem of the plant
2. rub it up and down to get the scent on your hand
3. smell it!
what's the difference? a male plant will have a more aggressive smell, while a female has a much gentler, prettier smell if you will. You need the two plants in order to have something to compare against. Once your familiar with the strains smell. you can judge a male or female before it even shows any noticable signs of sex.
Allow me to be more clear about this post, first I should have titled it "judging sex by smell"
I did not start this post to argue with damn kids, it is to inform all the intelligent growers out there that are interested. It does work and the proof is in ALL plants not just weed.
I don't care what opinion you kids have...
This made me rolltuna smell=female
ball cheese smell=male
this comes in handy after a bunch of drinks in Thailand.