Feminized Seeds - The proccess of making them! must read

[jcj77d]

there are alot of people out there that dont know anything about feminized seeds, how you get them, the pros & cons, so im putting up this article about this proccess, back by the infamous mj breeder DJ Short. hopes this clears up all those questions. Sticky This.
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more info
As plant lines are bred to themselves, the plants can lose some of their vitality or vigor. This results from the genetic makeup becoming more homogeneous as siblings are bred to each other or progeny are backcrossed to parents. When two such lines are crossed, they produce a hybrid that will exhibit "hybrid vigor." Once a desirable hybrid is created, it is possible to take cuttings from it and its clone progeny repeatedly without loss of vigor.It is at this point that you may wish to create feminized seed. These F1 hybrids will be used for planting in gardens, rather than for breeding. With feminized seeds, the grower knows that every plant is female. The seeds are produced using pollen from male flowers which had been induced to grow on female plants. None of the pollen contains male genetics so they grow only into female plants.

It is at this point that you may wish to create feminized seed. These F1 hybrids will be used for planting in gardens, rather than for breeding. With feminized seeds, the grower knows that every plant is female. The seeds are produced using pollen from male flowers which had been induced to grow on female plants. None of the pollen contains male genetics so they grow only into female plants.

There are a number of other ways to create feminized seed. These include using chemicals such as aspirin and hormones such as gibberellic acid. However, it is easier to breed females to females using chemically-induced or stress-induced male flowers that produce pollen on female plants (forced hermaphrodites).

One drawback is that plants that are induced to produce male flowers may have a slightly higher proclivity toward hermaphroditism than the general population. Using them for breeding may be inadvertently selecting for hermaphroditism. So after five or six generations, some of the plants might have more of a tendency towards hermaphroditism. But there is little chance that plants grown from first-generation feminized seed will become hermaphroditic, so they are ideal for using in the garden.

During the 1960's and 1970's some cannabis breeders took to experimenting with Colchicine. Colchicine, a powerful mutagen for both man and beast, stops cell duplication, while the cellcore duplication continues the same. The end result is a doubling or more of the chromosome set. This treatment can be beneficial to cannabis because it enforces many properties such as higher production of thc and resistance to disease. What also resulted, when gender chromosomes doubled, is that male or female chromosomes appear manifold, called Hermaphrodites. What's the plant to become? It becomes all at once. The result is called feminized or effeminate seed.
Genetically, a cannabis plant is more or less predisposed to become male or female. This is regulated by 2 chromosomes everyone knows as the X and Y chromosomes. A plant with 2 XX chromosomes becomes female. A plant with an X and Y turns into a male. Plants have hormones that regulate it's functioning, of which gender is one of those functions. The hormone balance is genetically determined, and partly influenced by environmental factors. An example is when plant roots get damaged. The roots will produce a substance that in turn slows down leaf growth. The result is male flowers. When discussing hormone balance you get FEMALE SEED: a female is a plant with XX or only female chromosomes.
When you have a seed with just X chromosomes, you are certain this seed will grow into a plant that is genetically female. To achieve the XX only plant: a female plant is forced by a hormone called Gibberellic Acid to produce male flowers, the pollen created contains only X chromosomes, when you offer this pollen to another female plant you can be absolutely certain to get seeds which are 100% XX. Once again this seed is called FEMALE SEED. Gibberellic Acid can be found in online. It takes years for an individual to achieve the proper plant hormone manipulation to get 100% female XX seed. Supplies therefore fluctuate and there are many different strains available worldwide.

[sth]

Great info.

Thanks!

[jcj77d]

no prob.

[virginharvester]

It sounds like they are saying that if a manufacturer takes the time to create true feminized seeds they can be dependable. But we don't usually know what processes a breeder uses to make their seeds, what results they claim we can expect, or what the general results most of us growers have with feminised seeds. We should start a thread with a sticky that lets everyone give information about their results with feminized seeds.

[Retroshark]

i was about to read that article, until the image loaded and i saw what book it was from! GREAT source. JK is an awesome author who really knows his shit. everyone needs these books, especially the 3rd, which this article is from. good job!

[jcj77d]

yea i love his books, got all 3, he really knows his shit.

[yamon]

Which books are you talking about?

[jcj77d]

ok so i contacted www.amsterdammarijuanaseeds.com , to ask them if they sold feminized seeds, b/c this is where i placed my last order from, & their responce was:
Hello !

We do not sell feminised seeds in the first place because they are 2 expensive and in the second place actually most important these
seeds are not 100% female!!

And:genetic manipulated!!

All professional growers in Holland use them seeds who got males and females they will give you more healthy plants!!
You separate the males from the females yourselve!!Go to:

http://www.amsterdammarijuanaseedban...le-plants.html

http://www.allpotseeds.com/male-fema...es-how-to.html

to check the difference!

Probability of at least 1 female plant:

1 seed: 50%
2 seed: 75%
3 seed: 87.5%
4 seed: 93.75%
5 seed: 96.875%
6 seed: 98.43%


Thank\'s for interest,
Sonja,
AMS-crew

Follow the liveGrow on http://www.whitewidowspecialist.com/...tures-pics.htm
Customer support
reply address :
http://www.amsterdammarijuanaseeds.com/contact.php

[Old Toby]

very interesting stuff! I've used feminised 3 years in a row and I got all female and the smoke was not bland at all.
Great thread though, I'm interested in what everybody else thinks.

[tEk7]

Who's JK???

[jcj77d]

Author & a huge cannabis Connaisseur & activist, named Jason King

[jcj77d]

Originally Posted by yamon

Which books are you talking about?

The Cannabible, there are 3 of them, not talking about the cannabis grow bible, by greg green.