Making Feminized seeds STS technique




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Published on Mar 15, 2013

one my female plants sprayed with STS (silver thiosulfate) to produce my own feminized seeds

balls showed after 21 days, this is after 3-4 weeks
sprayed with
200ml solution on the following days
day 1 day 4 day 8 day 12 day 16

The formula is as follows:
Always Mix part A into part B

Part A: 0.7 gram silver nitrate stirred into 40ml distilled water
Part B: 2.6 grams sodium thiosulfate (anhydrous) stirred into 160 ml distilled water

Next, slowly add the silver nitrate solution to the sodium thiosulfate solution while stirring. This combination is then added to 800 ml of distilled water to equal 1 liter. This is your final stock solution.


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