Breeding techniques

[tobe]

And recent studies concluded fem seed is no more likely to herm than any other. It is now thought that 90% of hermaphrodites are the results of stress triggering a survival response. Cannabis is amazing!

And fyi pure Sativa strains are the most susceptable to this

Thanks for the info, i didn't know it. Do you have a link to the study.
cu tobe

 

[pop22]

Sorry, I should have saved it but I didn't. If I come across it again, I'll post a link.

 

[bf80255]

Hi friends
i write this to share my breeding techniques. I know there are much different types of breeding techniques and i hope to see what other people do to get good strains.

p=photoperiod
a=auto
ff=fastflower

1) The first step is to make a plan in what way i want to breed and whats the goal.

2) I grow out some different strains to see if there is a interesting strain i want to work with.

3) if i found the right strain, i write down the family tree of the strain to see what genetics are inside.

4) Then i look for a second strain who compared to the other in taste high and structure.

5) i start with the first cross.
a x p = f1
theses f1 generation will be a fastflower photo strain with the best of both parents. They reduce the flower time around 2 weeks then the photo parent.

6) I do a multi grow to find the strongest plants. I call it survival of the fittest. I put 3 seeds in each pot in the same hole and let the strongest a live. Its a bit like natural selection. I only do it with the f1 generation.

7) The next step is.
f1 ff x f1 ff = f2
In the f2 generation i got around 75% fastflower and 25% autoflower seeds.

8) To get a full autoflower strain i use only the f2 auto seeds for the next generation. In this round i select carefully for the strain i want to have and i look in plan for the goals i have set. Sometimes i found a interesting pheno who didn't compare to the goal and i breed out a second line.
f2 a x f2 a = f3 (all seeds are autoflower )

9) Now its time to breed them to a stabil strain. Always selected for the strain i want to have.
f3 a x f3 a = f4 a

10) To have a true inbreed strain i mostly go to f5-f8 depend on the genetics.

I hope you all understand my english because it's not my mother language.

Happy breeding
cu tobe

Looks like a pretty solid process bud.

The only things I have to add are.

4) you dont necessarily need to match up strains based on similarities sometimes strains with totally different smells can recombine in the progeny to make some really unique and tasty blends than either original strain.

6) why wouldnt you continue to do the 3 per pot selections past the F1?

7) F1 X F1 = F2
the F2 generation will have about 25% autos 50% fast flower and 25% normal-long flower

8) yes all seeds in F3 and beyond will "theoretically" be 100% autos but as others and myself have found genetics isnt always so black and white and you can have non autos crop up 2,3,4 or more generations down the line. For instance, in my F5 even though all parents had been autos since the F2 I had 2 photo plants pop up and 1 suspected photo plant (dogs killed it before i could tell) in the F6.

your english is fine tobe

 

[bf80255]

Have any of you guys tried using reversed pollen to create an auto? I'm going to try it myself....

whattyu mean? feminize a girl and use the pollen to create an auto strain from a photo X auto cross? NO but I know a guy thats breeding generation to generation at the F4 currently and has only used reversed females exclusively.

Using reversed plants to breed will NOT give you hermi seeds or plants. when you use CS or another hormone/chemical to reverse a plant you are simply (in the case of CS) inhibiting production of ethylene needed to form female flowers, so genetically the plant is still a female (in the case of people XX) although phenotypically it appears male.

so in short, its totally doable with no negative reprocussions, try it if you dont believe me

 

[pop22]

I had several photo period Blue Dragons pop up in the greenhouse this summer, was surprised! But it was cool too, 2 of them got big!

Looks like a pretty solid process bud.

The only things I have to add are.

4) you dont necessarily need to match up strains based on similarities sometimes strains with totally different smells can recombine in the progeny to make some really unique and tasty blends than either original strain.

6) why wouldnt you continue to do the 3 per pot selections past the F1?

7) F1 X F1 = F2
the F2 generation will have about 25% autos 50% fast flower and 25% normal-long flower

8) yes all seeds in F3 and beyond will "theoretically" be 100% autos but as others and myself have found genetics isnt always so black and white and you can have non autos crop up 2,3,4 or more generations down the line. For instance, in my F5 even though all parents had been autos since the F2 I had 2 photo plants pop up and 1 suspected photo plant (dogs killed it before i could tell) in the F6.

your english is fine tobe

 

[pop22]

its also almost impossibly to get and F1 auto without planting a large crop, over 100 preferably. But I believe it was Mitch from Mephisto Genetics that told me choose the earliest males and females in F2, they are likely autos.

 

[tobe]

Hi @bf80255
thanks to join this thread.
To point 4 i mean it could be a different flavor but it has to come together and has to tasted good. I got crosses that dont tast good together and i dont like it. I can't explain it exactly because my english is not good enough.

To point 6 the generation splitt at f2 and some nice plants wasn't so strong like the others thats the way i do it only at f1 but i think about to do it in different generations.

To point 7 thanks you correct me.

To point 8 in my different projects i didn't got this experience, but i know genetics are hard to control.

Thanks you share your breeding experience.

I hope this will be a good thread for people who want to start breeding.

cu tobe

 

[pop22]

thank you, well said!

whattyu mean? feminize a girl and use the pollen to create an auto strain from a photo X auto cross? NO but I know a guy thats breeding generation to generation at the F4 currently and has only used reversed females exclusively.

Using reversed plants to breed will NOT give you hermi seeds or plants. when you use CS or another hormone/chemical to reverse a plant you are simply (in the case of CS) inhibiting production of ethylene needed to form female flowers, so genetically the plant is still a female (in the case of people XX) although phenotypically it appears male.

so in short, its totally doable with no negative reprocussions, try it if you dont believe me

 

[bf80255]

I had several photo period Blue Dragons pop up in the greenhouse this summer, was surprised! But it was cool too, 2 of them got big!

lol your definitely not alone hahaha sneaky little bastards!
When I read Charles Darwins On the Origin of Species I remember reading a similar phenomena he observed within populations of inbred pure white pigeons, the "wild type" blue bars would always crop up in the lines even though theyd been pure white for (dozens of) generations. I think its almost impossible to completely purge something from a line, always something hiding and lurking just beneath the surface.

 

[pop22]

I take the approach that i hunt for traits after I've bred in the auto traits. I back cross to select F1 plants with F3 or F4 autos. It takes longer, but I feel I lock in more traits I want this way. I then may take autos from both groups and cross them then study the three groups. So far, my first backcross seems just what I was looking for, yet I keep several variants of my Blue Dragon. One of the best traits to carry over from the Blueberry Headband was the taste of blueberry bubblegum! I swear its the most distinct taste ever in a vaporizer!