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As a breeder I will share my view on this topic. There are a few reasons making True Stabilized.. (True Breeding) Lines isnt practiced so much today, as in the past.
Never was for Cannabis.
The general market for genetics has been shifted to "The Grass is Greener on the Other Side" so to speak... meaning people are constantly looking for then next unique plant which in turn usually pop up in unstable lines and people feel lucky when they find them. This is also why so many new crosses are made ( pollen chucking ) with the most up to date Elite unique plant on the market hoping for an even better offspring. So stability isnt really on the minds of people as much as it used to be. Mostly because these unique plants dont need to be stable as Cloning and sharing cuts has become a lot more common with laws changing around the world.
Stability is much more of a concern when dealing with seed production... It still holds true.. who wants to grow out a pack of seeds and not get a single plant that represents the description of a strain the breeder has given.. it happens a lot these days and Im still baffled why people continue to purchase such seed as they are taking such a large gamble on actually getting what they paid for. Just another move in the mentality of the market and whats acceptable these days.
I would like to test your varieties for stability and true breeding, both by growing and sending them to a cytology lab that can test the homozygosity vs heterozygous, all cannabis is heterozygous.
I did test my Skunk #1 and was told it was the most homozygous Cannabis variety ever tested much more then any of the registered Hemp varieties that were tested, they tested maybe 100 different ones. I did not try and make it true breeding through breeding over and over, I grew out about 30 NLC X WLD varieties I made or was given and pollinated them to only themselves, then I grew out the F1 and made f2s and grew them out and picked the one that segregated the least, that was Skunk #1, I only made and sold true breeding varieties, until I moved to the Netherlands and got tired of all the knock offs. So I switched over to mostly hybrids.
The bottom line is it is not so easy to pick two varieties, make a hybrid and then stabilize it into a true breeding variety, I am not sure I have ever seen any. Skunk #1 is close but I did it by selection not by force of will, why not go with the flow?
-SamS
Another issue of why breeders dont make true breeding strains is the fact that they are SOOO easy to rip off by other seed producers and be sold as their own work. Blatantly taking all the hard work that the original breeder put in and reaping the rewards for themselves... this was a big issue for a long time and people began to frown upon people for doing so ( HACKS! ). So in response most larger breeders just started releasing F1s and keeping all True Stabilized Breeding stock for themselves.. this helps protect the work they have put in as no one can really recreate the exact same F1 offspring even if they use the same True Breeding Parent strains as they will be making different selection of P1 plants for the F1 offspring. Another method for protecting True Breeding strains has been releasing them only in FEM seed lines.. generally eliminating all males from the population to keep others from reproducing seeds.
( Why does it take so many plants? if you grow out a group of seeds and find plants with matching traits breed them and the traits breed true.. why do you need 100s of plants to choose from if you find what you are looking for in a smaller group? Growing out hundreds of plants of the same line is really only needed when trying to lock down a recessive trait that is rare.. hense the reason needing so many plants to find it in both parents you choose to make the next generation. )
Do you really understand breeding Cannabis? Have you ever bred anything else besides Cannabis? The larger the number the better chances of success, and the bigger populations your selections can be made from. Cannabis needs it, it is a wind pollinated out crosser, you need to grow 2,000 plants to open pollinate just to ensure that the gene loss is prevented do you understand this? With Cannabis 2,000 plants will still lose upto 5% of their genes each year reproduced.
Mustafunk:
An average hemp strain takes 7-10 years of breeding in average
( This statement just isnt true. Unless you are only growing outside being forced to produce 1 generation each yr. Indoors many generations can be produced in a single yr.. I have bred and made stable True Breeding lines in far less time then 7-10 yrs... that number only applies to single generation production each year. )
Were they hemp? What variety did you make? Yes hemp takes 7-10 years to bred well. you are not breeding hemp, I doubt you are in fact breeding at all, just pollen chucking, be honest. I could be wrong, but I doubt it. I will admit I have not grown your seeds, maybe I should before I speak, but no one is doing it right with Cannabis so I will just speak out not aimed really at you but at the whole industry.
They were not hemp and all hemp is bred out doors, except for one I know of, FINOLA, I developed it in my greenhouse, but I did use thousand of plants, every time I grew it.
-SamS
(well I like to think it takes a little bit of skill to make a successful "pollen chuck" sometimes the offspring are not a winner.. Ive made crosses of plants that where amazing by themselves but when put together turned out bad, yes this is even true for making F1s with True Breeding P1 stock.. sometimes the cross is worse then both the parents... Just like 2 beautiful people sometimes have ugly babies LOL things dont always go well together.)
Anyway thats my view on the market and what has changed over the yrs.
SGS
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