Understanding breeding, how to achieve the best an strongest high, false beliefs an inbreeding depresion

Here’s an interactive genotype thingy. Really helps get the points across. :slightly_smiling_face:

Looks like this…

Also look for a hardy weinberg equilibrium calculator :face_with_head_bandage:

This one is fun.

5 Likes

most countries would call that cruel and unusual punishment you know mithri.

1 Like

I know I’m pretty late to the party, and this has most likely already been covered…if so- feel free to delete it!
I am thinking that good example of combining genetics and looking for specific traits can somewhat be done using human genetics/genomes to explain why crossing A x B doesn’t always = AB…
SAMPLE: A mother who is Irish /German has a child with a Polish/Scotch man.
The baby does NOT get equal parts of both parents genetics. (I’m using Family Genetics here representing plant traits-- not human traits, which is different than Familial genetics)
It is like a bag of Scrabble tiles-- the man’s genetics are all vowels the female all constantans- in equal numbers. The child is a random, blind ‘grab’ out of the tile bag. You do not know how much of either parents family genetics are in the kid-- and each child born is a new, random grab…so their genetics, while identifiable as conclusively that man and woman’s children due to their DNA, each has a wide variation in their % of Familial genetics…not all the kids will have the same % of Polish, Irish, Scotch and German!
So crossing 2 different plants with a wide range of genetics gets you ALL the genetic tiles for each trait mixed at random. Both Plants com with dominant and recessive features-- but if BOTH have the SAME recessive feature- it gets ‘‘triggered’’ and becomes dominant…like red hair in humans.
Many people use Punnett Squares to predict outcome for each trait…based on dominant-vs- recessive traits… others, just cross their preferred plant parents-- look for the phenomes they desire in the offspring, and work from there…not always getting the results they expect/desire.
It can be fun… but can also be frustrating- and very time consuming…we are talking YEARS…especially if aiming for very specific traits in your plants.
Like I said-- pretty sure it’s all been said before… just felt like doing my '‘Ted Talk’ for the day!
LOL! Thanks for reading!

5 Likes

Anyone bred specifically for flower structures? I like the fat-bracht, spongey, flowers myself but have been noticing things while doing this.

I think the really fat bracht structure, like in TK, is a recessive or co-recessive trait as I’ve done an outcross and a backcross against a plant with those traits and ones without and I’ve yet to see it pop up in F1 or the bx1. The spongey flowers for sure show up all over the bx1 though and a good portion of the f1s.

5 Likes

Hahaha come on now, it’s only punishing if you try to understand everything in a weekend :grinning_face_with_smiling_eyes:

Give it time…

Also knowing only the basics of genetic inheritance is good enough… when you get into what gene is responsible for what, and complex mathematical formulas it’s really because you want to not because you need to :yum:

The most important lesson I learned about cannabis genetics is “just cross the damn plants”
Then the basic genetics is good to have a visual on how rare certain gene combos can be.

One guy named Julian knew absolute squat about plants but still managed to have great success breeding an outdoor line for his climate.

Observe. Learn. Conquer. Or something like that :grinning_face_with_smiling_eyes:

8 Likes

That is interesting, “small populations experience significant genetic drift.”
That helps clarify a lot of the underlying breeding techniques.

Cheers
G

4 Likes

Here is something that I found that might be interesting.

Precision Breeding.pdf (788.0 KB)

Not every trait has to be found in one plant but same two or three. Trying to breed for too many traits in a plant is 2 traits = (2x2)^2. 3 traits = (2x2x2)^2

4 Likes

??
does this mean i can add a lightsouce to my outdoorgrow in the summer and it will start flowering, cause its 24/0 ? right?

@Upstate !!!

1 Like

No no…once a calyx on a cannabis plant has been pollinated it will finish creating that seed regardless of what light schedule the grower has the plant in and it will finish making that seed if the grower changes the light schedule. Even if you put it in 24hrs of light and force the plant to reveg, it will finish that seed.
Caveat:all things remaining equal

4 Likes

This is nice. I actually have two plants now that I couldn’t get to clone and I’m at week 6 so I was just going to reveg, but now I might pollinate some lower branches as well.

Curious though, if I’m reveling the plant and have pollinated, will the seeds just grow out of the mini buds, and the plant will also reveg? What happens if you take a reveg plant and pollinate it under 24 hours of light, normal seed production I’m guessing…

2 Likes

sorry, i forgot for a moment that humans dont only grow seeds :crazy_face:… Funny, but thats all i did since i started growing (im a preserver.) however, ive never heard that…
And it would actually be cool to do what you say with my equatorial Plants… Cause i will still get Seedshells. And im after a few buds to smoke a year, the small yeald of Seedshells plantmatter wouldnt bother me. But are you shure?? And this would work with equatorial genetics too?

3 Likes

Post with pollinated cuttings finishing in a vase of water
Yep, im sure friend. You can speed up seed completion significantly if you dont care about the smoke

3 Likes

Can’t confirm if the process is accelerated but you definitely can produce seeds from revegging plants…

I’ve done it a few times with my skunk A cut. She takes a fairly long time to reveg so might as well do something while waiting.

3 Likes

Im going off the notion that the plant isnt sleeping as often in a 12/12 circadian…like an athlete in the 2week prep for contest…best analogy i got

My Ligheprivation Ideas
so, again, i need to 1) pollinate, plus in order to do that i do a 2) lightdeprivation, or Flowering-shedule of corse, till Pistils are are showing…

So, that means , for an equatorial Strain, i can switch them till pistills show probably in under 2 Months… Means i dont need to waste my whole summer for lightdep… (normally one has to continue it till 23 September, cause i heard of revegs if i stop before 12/12 Outdoors.)

A last question. Do you think a plant would flower if i just place her into a black room with zero Lightsfor 3 Weeks? so i can save yet more weeks of work?

I know it sounds messy, but you get the Idea
(no fear i wont call you out, but if you have slight concerns about any Limitations , tell me)

1 Like

Do you think a plant would flower if i just place her into a black room with zero Lightsfor 3 Weeks? so i can save yet more weeks of work?

I wouldnt do 3 weeks.most i would light dep is 3 days in a row to boost flowering. After that the chemistry breaks down…glucose, sucrose, etc.
Yes veg for 2 months, take clones, flower, pollinate, flip back to 24/0 for seed…3 weeks later cut down, move clones to veg room, repeat :wink:

1 Like

now it gets almost absurd, a plant can finish seeds without its body… Im seeing myselve fail already…

That worked for 3 Weeks, but i almost bet not much longer

3 Likes

That one was a little more tricky…i pollinated each branch with a diff strain pollen…but if you take too big a cutting it will fail, abort seeds.

1 Like

I’ve been doing this for years with my own strain and with sativa’s I did it this year, pollinating very very late in the flowering cycle, like at harvest time late. ( in june) Then the plants went outside into the long days where they finished their seeds up and switched back into veg mode. One thing I will say is that not all seeds will always mature this way, but most will. For example, If I leave the bottom branch of a plant that had lots of fresh stigmas on it and I Fully pollinate that branch, fertilizing a 100 or 200 stigmas, maybe 3/4 of the seed will properly ripen. The others will be hollow duds in my experience. I think the reason for this is that the plant diverts at least some energy into revegetation instead of maturing all seeds. Now, if I were to take that same branch and attempt to make 25 to 50 seeds, they would likely all mature.

7 Likes

8 Likes