Panreac Sodium Thiosulphate - Reverse Plant Sex 500 g

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Unlock the secret to producing your own feminized seeds with Panreac Sodium Thiosulfate 500g. This essential compound allows you to safely induce male flowers on female plants for pollen collection, a crucial step in creating feminized seeds. It's the preferred choice for advanced growers seeking to control their genetics and ensure a harvest free of unwanted males.

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What is Sodium Thiosulfate and How Does it Work?

Sodium Thiosulfate (Na2S2O3) is a chemical compound primarily used in cannabis cultivation as a key component of Silver Thiosulfate Solution (STS). This powerful solution acts as an ethylene inhibitor, effectively blocking the plant hormone ethylene, which is responsible for promoting female flower development. By inhibiting ethylene, STS induces female cannabis plants to produce male flowers, which in turn generate feminized pollen. This pollen carries only female (XX) chromosomes, ensuring that any seeds produced from it will be feminized.

Why Use Sodium Thiosulfate for Cannabis Cultivation?

For you, the dedicated grower, Panreac Sodium Thiosulfate offers unparalleled control over your cannabis genetics. Imagine being able to create your own feminized seeds from your most prized mother plants, ensuring consistent quality and traits in every harvest. This method is widely preferred by professional breeders due to its superior effectiveness compared to alternatives like colloidal silver, requiring fewer applications and yielding more reliable results. It's an indispensable tool for genetic preservation, strain development, and ensuring a crop composed entirely of cannabinoid-rich female plants.

How to Prepare and Apply STS Solution for Maximum Effectiveness?

To harness the power of Sodium Thiosulfate, you'll need to prepare an STS solution. This product, Panreac Sodium Thiosulfate 500g, serves as "Solution B" in the two-part STS preparation process. You'll typically mix 2.5 grams of anhydrous sodium thiosulfate (or 3.9g of pentahydrate) with 500ml of distilled water to create Solution B. This is then combined with "Solution A" (silver nitrate and distilled water) just before application, and further diluted to create the final sprayable STS solution. For optimal results, spray the diluted STS solution onto the nodes and bud sites of your female plants until runoff, ideally in low light conditions or just before the dark cycle, as STS is light-sensitive. Repeat applications every 3 to 5 days until male flowers begin to form. Remember to always wear protective gear, including gloves, goggles, and a mask, and ensure treated plants are not consumed.

Key Advantages of Panreac Sodium Thiosulfate 500g

Choosing Panreac Sodium Thiosulfate 500g means investing in a high-quality, reliable product for your cannabis fertilizers and cultivation needs. This generous 500g quantity provides ample material for numerous STS preparations, making it a cost-effective solution for both hobbyists and commercial growers. Its purity ensures consistent results, giving you the confidence to experiment with your genetics and produce top-tier marijuana seeds. With Panreac, you're not just buying a chemical; you're acquiring a tool that empowers you to achieve your breeding goals with precision and efficiency.

Frequently Asked Questions about Plant Sex Reversal

Is it safe to consume plants treated with STS?
No, plants that have been directly sprayed with STS solution are not fit for consumption. It is crucial to use treated plants solely for pollen production and seed creation.

How long can I store the STS solutions?
The individual stock solutions (Solution A and Solution B) can be stored separately in dark, cool conditions (preferably refrigerated) for extended periods, even years. However, once Solution A and Solution B are mixed to create the final STS solution, its effectiveness lasts for approximately one month when stored properly in a dark place.

Can I use Sodium Thiosulfate to prevent hermaphroditism?
Sodium Thiosulfate is primarily used to *induce* male flowers on female plants for feminized seed production, not to prevent hermaphroditism. Creating a stress-free environment is key to preventing unwanted hermaphrodite traits.

Buy Your Sodium Thiosulfate for Feminized Seeds at Pevgrow

Ready to take your cannabis breeding to the next level? Pevgrow offers you the Panreac Sodium Thiosulfate 500g, the essential component for creating your own feminized seeds with professional results. Trust in our expertise and quality products to help you achieve your cultivation ambitions. Don't miss the opportunity to master your genetics and ensure a bountiful harvest of feminized plants.

Type of crop: Type of crop Soil


  • Is the shipping discreet?

    Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.

  • Do you ship worldwide?

    Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.

    UK: 3-4 days (express)
    USA: 4-5 days (express)
    Australia: 4-5 days (express)
    Japan: 4-5 days (express)
    Canada: 4-5 days (express)
    South Africa: 4-5 days (express)
    New Zealand: 5-7 days (express)
    View all

    The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.

    We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.

    Due to problems with customs you can check here for restrictions to certain countries.

  • What payment methods and currencies do you accept?

    We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).

    You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.

  • How long does it take to ship my order?

    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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