Genetics Q

[2broke2smoke]

I could not find an FAQ in this section so please do not flame me for a stupid Q that is asked and answered elsewhere. How do u decide which parent to use for which sex? I will try to be more clear, say I have an excellent set of panama red and I have another excellent set of say Afgahni, I want to cross the pr with the Afgahani, which plant would be female and which would be male and most importantly, why?

2b2s

 

[Guest]

they would look different...so you could see the difernce in the ofspring and breed what ever you want in and what ever you want out.diferent breeders use different methods it really depends on what you have and what you want to do with it...hope this helps

 

[2broke2smoke]

Hey Mastermagic,

That helps a little, but more specifically what determines which sex gives off the trait u are seeking?

2b2s

 

[Guest]

two halves make a whole bolth are equel in there ability to pass on there genetics

 

[2broke2smoke]

So when people speak of their nycd mom crossed to bubblegum dad it makes no differance if it were reversed, correct?

2b2s

 

[Guest]

now if i have a indica that i really like..... but want to add a liitle sativa to it.. i breed a mom with a dad and then i breed most of the side that i dont want out through what is called"cube" basically inbreed untill i get the desired traits thus isolating them.

 

[Guest]

correct... although you will get alot of varations with just a cross to isolate what you want you have to inbreed to stabalize your creation through a cube

 

[2broke2smoke]

So would "cubing" start in the f2 generation?

 

[Guest]

cubing starts when you find something you like...how do you think they made everybreed of dog.

 

[Guest]

F1 (first generation) hybrids vary allot in characteristics, the best thing you can do is look for favorable characteristics in the mothers and fathers. I would try to find what you where looking for in the f1's (grow out a good amount) find the best and mother it, there is no need to stabalize it if your using it for personal use and not producing seeds for the world.

look for short internodes, fast vigor and growth, and good taste, and potency etc, for the characteristics that you want to pass on.

 

[Guest]

find a mom like her want her stable get a male inferior to her so you can see his off spring breed him to her...grow those seeds pic the ones that favor her grow them out breed the best one to her than do it all again...thus stabalize what you want...somepeople spend years on something as simple as a smell... its not always easy...and in alot of cases luck

 

[Elevator Man]

DJ Short generally recommends using the indica line as the male, and the sativa for the female - I think that's how most of his 'classics' were derived. He seems to imply it's mostly for aroma and flavour - the sativa provides the 'type' or 'quality', and the indica provides the 'strength'. He said that he generally got less desirable results crossing the other way in terms of physical traits - leafier and less potent.
Only one breeder's recommendation obviously, but if I only had one breeder's advice to follow, it would be DJ Short...

 

[2broke2smoke]

Thanks Mastermagic, Slips, and Elevator man,

I am a little slow (ADHD), but you kind gentelman have answered my question, especially E.M.'s D.J. Short explanation.

Thanks again, I have just started getting interested in the breeding for specific traits.

2b2s

 

[acidfire]

So when people speak of their nycd mom crossed to bubblegum dad it makes no differance if it were reversed, correct?

2b2s

There are certain recessive genes that may only expose themselves in say the male, while the female will not pass the traits on.

Recessive traits can also be found in the f2 generation, that did not show themselves in the f1.

So would "cubing" start in the f2 generation?

Excuse my simplified explanation:

Start with your two p1 plants (one male, one female).
Cross the two of them and label the seeds f1. [These are 50:50]
Take a cutting of the p1 female.
Grow out a bunch of f1s to find a desirable male.
Cross your original p1 female with your f1 male, this will result in bx1 seeds. [Now they are 75:25]
Grow out a bunch of bx1s to find a desirable male.
Cross your original p1 female with your bx1 male, this will result in bx2 seeds. [Now, 83:17]
Grow out a bunch of bx2s to find a desirable male.
Cross your original p1 female with your bx2 male, this will result in bx3 seeds. [Now, 93:7]
Your third backcross seeds will have a 93% chance of resembling your original p1 female.




(If any of this is incorrect, go ahead and correct me)

 

[Guest]

my friend slow is best in this hobby...im not the sharpest tool in the shed either

Thanks Mastermagic, Slips, and Elevator man,

I am a little slow (ADHD), but you kind gentelman have answered my question, especially E.M.'s D.J. Short explanation.

Thanks again, I have just started getting interested in the breeding for specific traits.

2b2s

 

[2broke2smoke]

Hey Acidfire,

Thank u for a concise explanation of the process of selection and isolation of traits that I want in my plants. It seems that I will need to plant large amounts of seeds to get a uesful sample. Sounds like I wil be busy.

2b2s

 

[mjshouldbelegal]

I'm no expert, but the male usually has a greater effect on the required flowering time, and the female on leaf structure (i.e., duckfoot male won't give the webbed leaf trait)