If you have already accomplished this step and your only concern is to know how to extract feminized seeds from a cannabis plant, I am going to explain it to you briefly.✍
This way of producing 100% feminine seeds with gibberellic acid was published by the great Robert Connell Clarke in his magnificent book “Marijuana Botany”. With this method several applications must be done during a period of 5 or 7 days. The biggest problem with gibberellic acid technique is its instability, since a very precise dose is needed to be effective, around 100 PPM. It is also common that each variety may need a different dose, so not many people use it nowadays.
🎯 How to make feminized seeds with STS step by step
Yes, there are, although not as effective and reliable as with STS, so we do not recommend them. But if you want to know other ways to make 100% feminine seeds of your favorite weed I’ll tell you. First of all you have to understand that all techniques are based on stressing a female plant to revert its sex to male, so it can produce flowers with which it can pollinate another female.
This is something they do naturally as a way of perpetuating the species. When a female guesses she’s going to die and hasn’t been pollinated, she spontaneously generates fertile male flowers to self-pollinate and continue with the lineage.
The most common technique used to cause stress to female plants was known as “Light Poisoning“ or light stress. It’s easy, you just have to use irregular photoperiods, or often interrupt the night cycle of female cannabis plants during flowering.
There are two methods in which growers can achieve this outcome – The Colloidal Silver method (safest and most popular) and Rodelization but in this article, we are focussing exclusively on the former as we give you the lowdown on how to make feminized cannabis seeds.
As such, only the buds that come into contact with pollen will grow seeds. At this stage, you can choose to pollinate all of your buds on the plant or just a few depending on your requirements.
What Are ‘Feminized’ Seeds?
Once you have your Colloidal Silver, you must then select a plant that has the characteristics you want to preserve. Feminizing clones is typically practised by growers as the growth, flowering, and resin characteristics from the mother plant are already known.
Once the pollen sacs begin to crack and appear like they are about to open up (or if you can already see that one has opened) then your pollen is ready to be harvested.
Spray the plant’s parts you want it to produce male pollen sacs with Colloidal Silver every day and three times per day if you have the time. Soak them well and repeat this process for the next two weeks before leaving the plants to grow as you would normally. It’s always recommended to spray plants in the dark to avoid burning and damaging your plants.
Colloidal silver is by far the easiest to source or make. It is non-toxic, non-caustic, and can be bought from a pharmacy or easily online. The other solutions can be dangerous, difficult to get a hold of, and expensive—except gibberellic acid, which can be found in nurseries, but is not as effective as colloidal silver. But if you want to watch some freaky plant growth just for the fun of it, give gibberellic acid a try. It is a growth stimulant and makes plants stretch and stretch.
The easiest and relatively inexpensive way—considering how much money is potentially saved by not growing resource and time-consuming males—is to buy a colloidal silver generator, which is the no-fuss plug and play option. Or, make your own, which is quite straightforward and doesn’t require any special skill.
TECHNIQUE 1: COLLOIDAL SILVER
Growing cannabis is all about resinous flowers, trichomes, and rich cannabinoid profiles. These splendid characteristics can only be found on the female flowers. Having gardens full of robust, un-pollinated sinsemilla females means jars full of mind and body-friendly, crusty nuggets.
There are a number of solutions that can be sprayed on female plants to create male pollen sacs: benzothiadiazole, gibberellic acid, silver thiosulphate, silver nitrate, and colloidal silver.
Once the plants have been sprayed with colloidal silver and the pollen is collected, they are write-offs—86 them and don’t smoke them. Giving them a thorough rinse will not work. The colloidal silver is a systemic treatment absorbed into the plant through the foliage and not a topical application. Be safe and bin them.