I'm afraid the same could be said of you.
There are a lot of plants CALLED blue (since they share genetics with DJ shorts' famous blueberry strain), but I've never seen a true blue color cannabis plant. Is there a strain in particular you have in mind here?
One more time, just to be clear, "azure haze" isn't supposed to be blue in color, its just genetically related to the DJ Short blueberry strain.
i cannot like this post enough. Like like like like like... Etc.
Great info, I was curious why your S1 Green Crack had so much purple when then clone-only (and Mendo Purps for that matter) don't have anywhere near that much purple to them.Not incidentally, this is a dried bud from the Sickmeds Green Crack S1 from my last picture post, above.
Obviously, its got some purple in there, and there is a reason I'm bringing up this example (well. . .other than showing off a cool bud!).
The original clone-only line Green Crack does not typically go purple. On the other hand, most accounts I've seen of this S1 (which is just Green Crack [reversed] x Green Crack) say that they're seeing purple.
Green Crack itself is supposed to be Skunk #1 x "unknown" California indica. I've speculated in my grow report of this that because of the purpleness of this S1 offspring, the "unknown" CA indica is probably one of the Norcal "purple lines" (ie Mendo purps).
I'm not going to expand this post too much with complicated genetic descriptions, but here is the point:
If most of the S1 offspring here turn purple (mine did. . .and that seems to be most people's experience with this) then whatever genetics are controlling the purple color CAN'T be controlled by a single simple dominant/recessive Mendelian gene.
The reason is if there were only one purple color "gene" and this gene were truly dominant, then the original Green Crack should be purple. . .but it isn't.
If there were only one purple color "gene" and it were truly recessive then only 1/4 of the S1 offspring should be purple. . .but that doesn't seem to be true either since most growers are seeing purple.
So, assuming the reports are right, in this case, the purple color trait is probably controlled by multiple genes. To really figure out what's going on here is going to require a lot more information, and without it, I don't think you can reliably predict how the offspring of different crosses will or won't go purple.
Bottom line is, if you're crossing unrelated purple and non-purple strains, I don't think you can apply a hard-and-fast rule to predict the color traits of the offspring. You have to do the crosses and see.
Honestly, I don't know for sure myself. All I can say for sure is that the clone only Green Crack typically doesn't go purple, but grow reports on the S1s of it (including Riot ceeds and Sickmeds versions) invariably mention the purple.
The Green Crack clones get some purpling on their leaves (not so for the flowers) towards the end, as do the GC dominant LuLu clones. As I look at my 20 LuLu ladies in veg I see only 5 that look Mikado dominant, the others are Green Crack dominant. Those two strains have completely different structures so it's very easy to tell.Honestly, I don't know for sure myself. All I can say for sure is that the clone only Green Crack typically doesn't go purple, but grow reports on the S1s of it (including Riot ceeds and Sickmeds versions) invariably mention the purple.
My educated GUESS is that the original clone only is effectively an F1 hybrid with hybrid vigor. The S1 ceed version is effectively an F2 of the original parents, and the genetic shuffling inherent to F2s is making the purple really pop out in some of the phenos. I could easily see that kind of shuffling making individual plants more purple than the original purple parent (whatever it is).
As a somewhat less likely second explanation, I can also speculate that the original "clone only" is typically grown in warmer climates, where as ceeded versions are more likely grown indoors in colder ones (potentially bringing out the purple more).
Knowing all of the above, I'm a bit surprised you didn't see at least some purple phenos in your F2 and F3 "Lulu" (ie [Green Crack x Mikado] x Green Crack) backcrosses.
For me the purple started showing up the fifth week of flowering on the lowest (ie coldest) flowers, and progressed from there. Temps got into the low 60s during the dark period of this grow. Here is a shot at day 34 of 12-12:
And here it is again at day 55, with the plant effectively harvest-ready:
Oh, by the way, with so much talking about this, I'll probably have an update on the Green Crack grow report soon.
