Recurrent Selection

[stonemaster]

Sorry, group D is the photo group.

 

[Zygote]

One thing I would like to point out about Recurrent Selection.

Is; it has the ability to greatly increase the yield.

Other breeding methods have little affect on yield. Because you cannot predict what gene combination will result in a huge increase in yield. Many traits will have to come together for this to happen.

The reason is: there are a great number of genes involved with high yield.

Recurrent Selection allows you to bring these genes together.

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IMO; the first goal for most “Day-Neutral” aka “Auto-Flower” breeders was to increase the potency. I believe this has been dun.

IMO; the next step, would be to increase the yield of Day-Neutral Cannabis

I would like to see Auto-flowers yield 8-16 oz. in 75-95 days outdoors.
More crop per drop.

On a Side note:
I think, for a plant to yield 8-16 oz. in 75-95 day’s, Outdoors. It would need to have many big side branches. A bush that is wide as it is tall.

 

[stonemaster]

I am running autos against photos in identical beds and the main thing holding the autos back is the fact that both groups show yellowing in the newest leaves. The photos are getting big doses of nit. and can take more while the autos are just getting small doses.I can double the photos size every 3 days leaving the autos far behind.They are not hardy enough to keep up.
check out my theard "auto verses photo".

 

[le672]

Everything about this recurrent selection is great. However, for it to really work, you have to start out with a really wide genetic base. The problem with only using available auto strains, is that they are all highly related. As far as I can tell, the ruderalis genes can all be traced to Lowryder. Most of the other genes come from different combos of popular dutch strains, many of which have common ancestors. I'm sure there are plenty of exceptions (and if anyone has several Autoflower x Landrace hybrids from various latitudes, I'd love to hear about it) , but in any case it is probable that all or most of the ten starting strains will be distant cousins. With the current legal status and value of this plant, it will take a very brave (or very rich) person to waste most of 5-7 generations of 100 plants on growing well acclimated, but low yield and low potency plants before the perfect strain appears.

 

[Zygote]

You are correct,
The more genetically diverse groups used as recurrent stock, the better the results will be.

 

[stonemaster]

The photos are getting that way, and it is a good thing. Look at high times highest t.h.c. level from colorado,O.G. Ghost Train Haze. The og is made from at least 2 different strains, one of which, the chem dog, no one even knows what it's genects are.The ghost componate is more than one strain,as is the train whreck and haze. I think this showes that the wider the base the better the result.Since I am a stonemason I think in terms of rock, but I think of it as a pyrimid, the wider the base the higher the top can be(ha ha), and I want high tops.I think that we have already reached a point where the genetics are so intermixed that there is no more crossing two strains together,you are mixing many strains of which you know much less than you might think.It is like hyphenated names, it only works for a short time. If a child with one of these names marries some else with one, you could have a child with a name such as Smith-Jones-Patterson-Doe. Or for us o.g. ghost train haze.It is time for a new approuch and this recurrent selection is the way. It is being done now, just slowley, as people cross two strains.

 

[le672]

"The og is made from at least 2 different strains, one of which, the chem dog, no one even knows what it's genects are."

It's kind of funny then that Chemdawg is one of a handful of strains with a publicly available complete genome sequence. We don't know its genetics, but we know its genome sequence.

Medicinal Genomics is sequencing the genomes from a long list of strains, and making them public. It won't be too long before the exact relationships between major strains are known. Of course, other companies are also sequencing strains, but they will be keeping their data private, to help them breed strains with certain cannabinoid profiles.

 

[stonemaster]

I am glad it has been sequenced but as you said we do not know the genetics. But what did that matter to the breeders who used it to develop different strains? They did not no even what part of the world it came from. They were choosing for phenotypes as must we. If we crossed 8 strains into one, the number of phenos to be pulled out are endless. So now as always we go with what works. I beleive this recurrent idea is the proven way to create truly new strains and it does not care about origens , only diversity. It is up to the skill of the bredder to chose well among a host of possabilities.

 

[GoAuto6]

yes exactly, it does not matter where they came from, they have been cross bread so much that the gene pool is so blown open, so all we need to do is breed to each individuals needs, to pull the full potential out of the gene pool that is there.....just because they all have origanal origens doest meen the gene pool is limited it just means we have alot of work to do..........

 

[Zygote]

Genetic evidence for speciation in Cannabis (Cannabaceae)

Karl W. Hillig
Department of Biology, Indiana University, Bloomington, IN, USA; Current address: 1010 Saratoga Road,
Ballston Lake, NY 12019, USA (e-mail: khillig@bio.indiana.edu)
Received 7 January 2003; accepted in revised form 28 June 2003​

Key words: Allozyme, Cannabis, Evolution, Genetics, Origin, Taxonomy

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