This method is less effective than using STS because, in some cases, breeders find that they must apply the solution as many as ten times before the plants begin developing pollen sacs.
Do Feminized Seeds Produce Feminized Seeds? — In the cannabis world, female plants get all the attention, and for a good reason. Only female cannabis plants can produce flowers that are rich in cannabinoids such as THC and CBD. In contrast, male plants produce pollen sacs, which are not ideal for smoking and do not contain high cannabinoid levels. Male plants may also pollinate female flowers, significantly reducing their cannabinoid content and filling them with unsmokable seeds. Given these considerations, most cannabis growers remove males from their gardens or choose only to grow feminized seeds. This ensures that growers will produce sinsemilla (premium seedless) cannabis buds.
There are several methods for creating feminized seeds. However, some methods are more effective than others. Most of these techniques involve causing hormonal changes in female cannabis plants, thereby triggering them to develop pollen sacs. The pollen produced by female plants contains only X chromosomes because Y chromosomes are only in male plants. Below are the most common methods of creating feminized seeds today. After discussing different feminization techniques, we’ll address the question: “Do Feminized Seeds Produce Feminized Seeds?”
Silver Thiosulfate Method
The most common method of creating feminized seeds involves the use of colloidal silver. The solution is affordable and easy to find in most grocery stores. Moreover, growers can make colloidal silver at home. Like the other chemical methods, this involves spraying the plants—in this case, with a solution of colloidal silver—until they begin to form pollen sacs. The silver particles block ethylene production in the plants, causing a hormonal shift that triggers pollen sacs formation.
Like regular seeds, feminized seeds usually produce photoperiod-dependent plants, though some autoflowering seeds are also feminized. Today, growers can choose from a wide array of feminized seeds, including Indica, Sativa, Ruderalis, and hybrid strains.
Indoor growers are fond of autoflowering seeds because they are produce small plants that flower quickly and are easy to grow. Autoflowering strains are available in both regular and feminized forms and are usually high in CBD (although high-THC autoflowering strains are also available).
For breeders, feminized seeds help to create stable inbred lines quickly. Developing an inbred line from regular seeds can take many generations and years of selective breeding. Breeders who use regular seeds also find it challenging to determine which traits a male plant will pass to its offspring, as the male plant does not produce buds.
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Unlike more complex organisms, cannabis is not firmly one sex or the other. It’s a very unusual species in that it is an annual plant that is also dioecious (producing separate male and female flowers on different plants). However, every cannabis plant has the ability to produce flowers of the opposite sex under certain conditions. It’s a survival mechanism for the species, allowing cannabis to succeed and reproduce while being both annual and dioecious.
Anybody who has ever used cannabis owes their delight to the female aspect of the plant. This is because female cannabis plants contain greater concentrations of the much-loved cannabinoid, THC. For this reason, growers separate male and female cannabis plants to protect the females from pollination. Feminized seeds remove the need for this kind of “sorting”, as plants are basically guaranteed to be female.
Old and new methods for breeding feminized seeds
There was a costly disadvantage to this method. As the “pollen donor” was a plant with strong intersexual tendencies, there was a very high likelihood that this tendency was passed on to the subsequent seed.
Thanks for your comment and question. Although our feminized seeds are as stable as possible, and there’s no reason you can’t use them for breeding, it is generally advisable to use regular seeds if you want to try your hand at breeding.
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Sensi Seeds has nothing to do with Monsanto and we do not endorse or approve of their work (to say the least!).