Mars Hydro is looking for product reviewer

:goodjob:Looking forward to your pics.
nostrainogain said:
I recently placed an order from Mars for an Old Mars300 from amazon, came in in great shape, would love to add the tent to it and definitely the bigger light ahahh.. but all in all haven't set up the new stuff but looks great and can't wait to set it all up...
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...this is the lesson for me,i will try my best to take a note..teachers.:bravo:
TorturedSoul said:
How many generations did it take you to "fix" the a-f gene so that you get consistent 99.whatever% auto-flowering, five or six, or...?
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:goodjob:
777hrd said:
Auto-flowering varieties are useful for midsummer harvests - when started in the springtime in temperate climates - and allow for outdoor flowering in areas with a short growing season. This auto-flowering trait traces its roots back to Cannabis ruderalis.

For every simple Mendelian trait, there are two genes. Each gene comes in a dominant and a recessive form; an important thing to note is that the auto-flowering trait is recessive. If the auto-flowering trait is labeled with 'As', the dominant form is expressed by the capital 'A', and a lower-cased 'a' is used to represent the recessive form.

For a given plant, these genes will be in one of four combinations:

AA: 'True-bred' not to auto-flower (homozygous for photo-dependence)
Aa: Heterogeneous for auto-flowering, and since the dominant form is not to auto-flower, the plant will be photo-dependent
aA: Heterogeneous for auto-flowering, and since the dominant form is not to auto-flower, the plant will be photo-dependent
aa: 'True-bred' for auto-flowering (homozygous against photo-dependence)


Cannabis will breed 'true' for the auto-flowering trait if both parents show the trait.
Since auto-flowering traits will only appear in the plant if it was 'true-bred' for auto-flowering, any two auto-flowering plants that are crossed will have auto-flowering offspring. This is because for the mother and father to both show the trait, they must both be 'aa' for that trait. There are four combinations possible (aa, aa, aa or aa), but in each case, each parent contributes the recessive form of the gene, since that is all they have to give. No matter which parent contributes which gene, it will be an 'a'.

The reverse is true for two 'true-bred' photo-dependent plants ('AA'). If the only form of the gene available from the parents is the dominant form, then all the offspring will have the dominant form and be reliant upon lighting schedules to determine when to flower.

When a Cannabis plant that is 'true-bred' for auto-flowering is crossed with a plant that is 'true-bred' for photo-dependence are crossed, the offspring will not auto-flower. This is because if one parent has both genes for photo-dependence ('AA'), and the other for auto-flowering ('aa'), then the offspring will all be 'Aa'. No matter which of the four combinations are used (Aa, Aa, Aa or Aa), the offspring will receive a dominant 'A' from the first parent, and a recessive 'a' from the second.

With these 'Aa' seeds, there are two alternatives when the goal is to breed for auto-flowering: they can either be crossed with an auto-flowering plant (aa), or with one of their siblings (Aa).

If they are crossed with an auto-flowering plant, then fifty percent of the seeds will auto-flower. This is because with the parents 'Aa' and 'aa', the four possible combinations are: 'Aa' and 'Aa', which will not auto-flower, and 'aa' and 'aa', which will.

If instead the siblings are crossed - which is often done if traits from the non auto-flowering plant are desired - then both parents will be 'Aa' for the auto-flowering trait. The four combinations will be: 'AA', 'Aa', 'aA' and 'aa'. Since auto-flowering is recessive (loses ties), only the 'aa' (twenty-five percent of the offspring) will auto-flower.

Auto-flowering is a nice trait with which to work, as it is a simple one and easy to observe. With a little planning and observation, it can even be fun.


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Good info to pass on 777, reps...
 
TorturedSoul said:
How many generations did it take you to "fix" the a-f gene so that you get consistent 99.whatever% auto-flowering, five or six, or...?
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When I said completed the breeding project, I should have been more specific. I completed the first cross to get seeds. I have not done anything beyond that other than start a plant growing from one of the resulting seeds so far. :)

I have to go back and read 777's post again, that is some excellent information there. It answered a question we've had about how the auto or photo traits will come out after crossing the two. Totally will be adding that to the blog too.
+reps from me as well 777!
 
777hrd said:
All good canna glad I put you back on the right path


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I'm not sure I was even following a path, I just decided to try it and see what happens.

I'm all for experimenting either way. I have the space and the time. I get dangerous when I get pollen in my hands. :laugh:
 
777hrd said:
As long as it's not a costly experience


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You might be able to answer some questions for another grower who is diving into breeding/cross breeding. Maybe you can pop over to this thread he created and give some input for him. He's pretty excited to start this new challenge:

Breeding and cross breeding questions

:battingeyelashes:
 
777hrd said:
As long as it's not a costly experience


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BTW, the author of that post you made had some other excellent information I found on the net last night. Wish I could post some links, but it is a competing site and not allowed to link here. His name was "grubbycup", I believe. I learned a lot reading some of his other information.

We're nearing the end of this contest, good luck everyone!

And I still say @GrizzWald. :battingeyelashes:
 
Cannafan said:
BTW, the author of that post you made had some other excellent information I found on the net last night. Wish I could post some links, but it is a competing site and not allowed to link here. His name was "grubbycup", I believe. I learned a lot reading some of his other information.

We're nearing the end of this contest, good luck everyone!

And I still say @grizzwald. :battingeyelashes:
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He is actually a member here:
@Grubbycup

But he appears to have joined three years ago, made ONE post... and never returned to the forum.
 
:cheertwo:Thanks Hushsoundz.How many seeds you ordered?:bravo:
Hushsoundz said:
@smokesara looks like a great opp. Just ordered my seeds too!


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:bravo::bravo:When i have time,i would like to read more about your blog.:high-five:
Cannafan said:
When I said completed the breeding project, I should have been more specific. I completed the first cross to get seeds. I have not done anything beyond that other than start a plant growing from one of the resulting seeds so far. :)

I have to go back and read 777's post again, that is some excellent information there. It answered a question we've had about how the auto or photo traits will come out after crossing the two. Totally will be adding that to the blog too.
+reps from me as well 777!
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