sorry. i did see more places, that had their own jack herer. some ive smoked from the farmers market. none was like mine. it looked way hard buds, but isent jk herer like 60-70% sativa?
This is a gigantic can of worms.
On paper, Jack Herer is supposed to be 50% Haze (which is 100% sativa), 12.5% Skunk (itself 75% sativa), and 37.5% Northern lights (nobody is absolutely certain about the genetics here, but its mostly indica, let call this one 25% sativa).
So yes, if you do the math, "by the book" the original Jack Herer is about 69% sativa, maybe a bit less if the parent Northern lights was more than 75% indica, and/or if the original Skunk pheno used to do the cross was more than 25% indica.
The problem with this estimate is that it really doesn't tell you ANYTHING useful about the plant at all. Even if the plant truly is 70% sativa by genetic lineage (and that's debatable, see below) WHICH traits come from the sativa parents, and which from the indica parents? Based solely on that number, we don't know. The bud density could be indica, sativa, or somewhere in between. Ditto for flavor, high quality, plant shape/growth, etc.
Ultimately, the selection applied to create the final line matters here a *LOT* more than the original parent genetics, and so IMO to the extent that it matters whether or not this is indica/sativa, I'd say its best to just consider Jack Herer a sativa-dominant hybrid, as most people do, and leave it at that
Now, just to confuse things a bit, I would like to add that even if we do know the exact parentage of Jack Herer, short of genetic sequencing, there is really NO WAY to determine the true percentage indica/sativa. The reason is that inbreeding to create each parent line (both Skunk and NL) as well as further possible inbreeding of the Jack Herer once created, will likely have altered the percentages here.
Let me explain with an example.
Lets say I take a pure 100% indica Afghani landrace strain and cross it to a pure 100% sativa Columbian landrace. These F1 hybrid offspring will be 50% indica - 50% sativa. So far so good.
Now lets say I take two of these 50-50% offspring and cross them to create an F2 generation. Since each parent is 50% indica -50% sativa, these F2 plants should all be 50-50 indica-sativa too, right?
Wrong!
The reason is that in sexual crossings, genetics assort randomly. Yes, on AVERAGE the F2 offspring "should" be 50-50 indica-sativa, assuming we had enough of them. But in practice we're going to create a "bell curve" of various phenotypes lying all the way across the spectrum from nearly all sativa to nearly all indica. Most of these plants will be "mutts" showing a combination of both Afghan and Columbian traits, some more than others. But given enough offspring, by random chance a few individual plants would be expected to be highly similar to either the original Afghan or Columbian grandparents, phenotypically over 90% indica or sativa.
If we're going to do further breeding, what's going to determine the amount of indica/sativa traits going forward is our SELECTION of which F2s we're going to continue to breed with, not the percentage genetics of the F1 parents!
The bottom line is, once you get into highly worked hybrid lines themselves derived from worked hybrid lines you can't apply simple arithmetic to determine indica/sativa percentages. At best that's just a rough guess, and at worst, it can be highly misleading. Indica/sativa is used a lot as a rule of thumb, since in one number it gives a ballpark idea of what you might expect in terms of growth characteristics, flowering time, and flavor, but you have to take these things with a gigantic grain of salt, and if you're interested in specific traits, its better to discuss/address them specifically.
