Figure out Indica/Sativa Percentage

404NotFound

Well-Known Member
Alright, so everyone knows that hybrids have different percentages of Indica and Sativa in them. I was wondering if you were to cross two hybrids, how would you figure out the new percentage of Indica/Sativa in them? No strains in particular, just want to know the mathematics of it so when I do decided to cross two strains, I'll know exactly/roughly the percentages. Any insight would be appreciated.
 

johnman2880

Active Member
well if you breed a 60/40 with a 40/60 theoretically you would get a 50/50 but im unsure I would kind of like to know myself.Even known strains Ive grown that were supposed to be indica turned out sativa so I wonder if its a guessing game.
 

404NotFound

Well-Known Member
well if you breed a 60/40 with a 40/60 theoretically you would get a 50/50 but im unsure I would kind of like to know myself.Even known strains Ive grown that were supposed to be indica turned out sativa so I wonder if its a guessing game.
Appreciate the comment. +rep. Okay, so I think I figured out the way to solve the percentages when you crossbreed. I've worked out a couple of problems with different percentages and it always comes out to 100% in the end. Now whether this is factual or not is unknown since I havn't actually crossbreeded any strains yet to guess what would be more dominant and then test to find out for sure. If anyone wants to test out my formula when crossbreeding, please do so and let me know if my theory holds some truth.

The theory:

Indica over Sativa in a fraction form. Add both Indicas together, then add both Sativas together and you got a sum of both fractions. Now, divide the sum of the Indicas by 2 and do the same to the sativas as well. That is the actual outcome of Indica to Sativa ratio [in theory].
 

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johnman2880

Active Member
Appreciate the comment. +rep. Okay, so I think I figured out the way to solve the percentages when you crossbreed. I've worked out a couple of problems with different percentages and it always comes out to 100% in the end. Now whether this is factual or not is unknown since I havn't actually crossbreeded any strains yet to guess what would be more dominant and then test to find out for sure. If anyone wants to test out my formula when crossbreeding, please do so and let me know if my theory holds some truth.

The theory:

Indica over Sativa in a fraction form. Add both Indicas together, then add both Sativas together and you got a sum of both fractions. Now, divide the sum of the Indicas by 2 and do the same to the sativas as well. That is the actual outcome of Indica to Sativa ratio [in theory].
it would be the same as calculating heritage rotios in humans.1/4 irish and son on. . .
 

404NotFound

Well-Known Member
it would be the same as calculating heritage rotios in humans.1/4 irish and son on. . .
Pretty much the same thing. But I'm pretty sure mathematically the way I presented it would be the way to determine the percentage. Correct me if I am wrong.
 

grannybonger

Active Member
When i researched this topic i found some stoned guys Jack Herrer and co mainly, threw the wool over a world of pot seed buyers. There is no proof any of these crossing techniques work. Think about it, your mom (sativa) and dad (indica) got horney and 9mo's later what poped out? A frigin individual. The seeds could be anything, including traits from your parents parents etc.

The whole business is a fraud. You want seeds you gotta make-em yourself. Then try and figure out what you got, mathematicly.
 

404NotFound

Well-Known Member
When i researched this topic i found some stoned guys Jack Herrer and co mainly, threw the wool over a world of pot seed buyers. There is no proof any of these crossing techniques work. Think about it, your mom (sativa) and dad (indica) got horney and 9mo's later what poped out? A frigin individual. The seeds could be anything, including traits from your parents parents etc.

The whole business is a fraud. You want seeds you gotta make-em yourself. Then try and figure out what you got, mathematicly.
True. I see what you're getting at. Now my question originally is, if that is the case, then how do you figure out what you have mathematically with that plant? And if that is true what you say [really logical], then my idea can't put the percentage too far off from what it's percentage might be. Might be the closest you come to figuring out exactly how much of what is in it. By the way +rep granny.
 

johnman2880

Active Member
True. I see what you're getting at. Now my question originally is, if that is the case, then how do you figure out what you have mathematically with that plant? And if that is true what you say [really logical], then my idea can't put the percentage too far off from what it's percentage might be. Might be the closest you come to figuring out exactly how much of what is in it. By the way +rep granny.
If you TRULY wanted to know you would have to perform gentics test because certain characteristics would be passed on.just like granny said.
 

reverof

Active Member
Actually anything not pure + pure would never get the same ratio of indica/sative in each seed. If you got 100 seeds form a plant that was mutt mixed you would very likely end up with 50-100 different percentages.
 

404NotFound

Well-Known Member
If you TRULY wanted to know you would have to perform gentics test because certain characteristics would be passed on.just like granny said.
Do people even sell genetics tests? And yes, I know certain characteristics would be passed on. Thats like if I were to crossbreed 2 plants and plant 2 seeds from them, one could have a trait from the mother that's dominant and the other could have a dominant trait from the father.
 

justthis?

New Member
Do people even sell genetics tests? And yes, I know certain characteristics would be passed on. Thats like if I were to crossbreed 2 plants and plant 2 seeds from them, one could have a trait from the mother that's dominant and the other could have a dominant trait from the father.

alright, i created a profile just to pose this question, so please, someone of you assholes answer this: if the percentages are fucked because of the heretical factor, yet it has been distinguished that there are the two different unique strains, then are these 'facts' that everyone throws around based on each smoker's personal experience, or could someone, theoretically, follow a 'family lineage' of marijuana plants, estimate by what generation (3rd, 43rd), they had breed from the same family the two different strains in pure genetic form of it's kind? & maybe go from there with the % shit? idk, i'm stoned and looked this up really randomly... sorry, you aren't an asshole.
 
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