STS (Silver Thiosulfate) Feminising Seed Spray
Two part STS (Silver Thiosulfate) kit, 100ml each of part A and B concentrate to mix 1 litre of STS spray. Enough for 10 batches, just mix 100ml each time as needed.
Concentrates are long term shelf stable until mixed. Proprietary customized mixing concentration tested to be successful by hundreds of users including large breeding facilities. Supplied in pharmaceutical grade glass bottles.
A graduated measuring cup and full mixing instructions included with your Two part STS (Silver Thiosulfate) kit.
A summary:
Feminization is crucial for growers aiming to produce seed crops with a high percentage of female plants, which are valued for their higher yield of flowers compared to male plants.
STS is a chemical solution that contains silver thiosulfate, a compound known for its ability to inhibit ethylene production in plants. Ethylene is a plant hormone that influences the development of sexual characteristics. By applying STS, growers can induce male flowers on female plants. These male flowers, in turn, produce pollen that is genetically female, leading to seeds that are predominantly female when used for future planting.
The process involves spraying STS onto a female plant during its flowering stage. After a few weeks, the treated plant will start producing pollen. This pollen is then used to fertilize other female plants, ensuring that the seeds produced are mostly female. The technique is highly valued for its efficiency and effectiveness in creating stable, high-yielding female seed lines, which are essential for commercial cultivation and breeding programs.
Some strains can be more challenging to feminize using STS spray due to genetic variations. It can affect their response to the treatment. These strains may require higher concentrations of STS or more precise application methods to induce male flowers effectively.
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