Feminisierte Samen selber produzieren

I had extensively researched the topic beforehand to gain some knowledge. And yes, of course, pollen can also be stored. However, after collecting it, one should first dry it. In the refrigerator, it should be storable for a month, and if well-packaged, it can be frozen for up to a year. It is also possible to induce a complete female plant to mutate; for this, it is completely sprayed over several days. The principle remains the same.

The thing with the popcorn buds in the tent is also feasible; I just did that too. I shook the pollen into a small dish and then went over a few of the lower popcorn buds in the tent with a fine paintbrush. The pollen was from the Gorilla Sherbet. With it, I then pollinated the Bubble Gum Sherb once and the Fat Bastard once. Both times successfully. From the Bubble Gum Sherb, I harvested almost 40 seeds, and from the Fat Bastard, only one so far, as it is still hanging on the drying rack. I think I can trim it this weekend and harvest the remaining seeds then.

So, with that one mutated Gorilla Sherbet, I have now produced three types of seeds. Once by self-pollination (to preserve the strain), once by pollinating the Fat Bastard (new strain), and once by pollinating the Bubble Gum Sherb (also a new strain). Next, using this method, I will propagate the Fat Bastard and pollinate the Bubble Gum Sherb with it, which will again result in a new strain. And finally, I will start a run with the Bubble Gum Sherb to keep this strain in my collection. Then I will have 6 strains, three of which are only available in my private collection.

Your approach of selecting the best and strongest plants for this is also spot on. Breeders normally plant around 50 plants for propagation and then select them based on growth, color, smell… to ultimately have the greatest possible genetic potential in the lineage. Normally, this process is repeated multiple times to get a strain as stable as possible. Unfortunately, I couldn’t afford this luxury with my resources; for that, I would need a laboratory. I also only have a 60x60x160 cm tent. But plenty of ambition.

Arrived yesterday and the cuttings are ready for flowering… I’m really keen to grow my own strains… Ketama and Skunk 1 will probably be the first!

Hey @herr_gruen

First of all, thank you very much for the detailed description, I really wanted to test that too. I also have Ed Rosenthal’s book here, great book.

I have a question. It’s clear that you keep the ‘treated’ plants separate from the other plants. But what about several ‘treated’ plants of different strains? So let’s say you want to test this with several strains at the same time. Would these then also have to stand individually so that the strains don’t mix, or can you have them all in one tent?

Kind regards

You shouldn’t have them together, otherwise you would pollinate your plants with all the pollen from all the plants. That would ultimately be an undefinable mix of all varieties. Even if you have them in different tents at the same time, you have to be very careful not to cross-pollinate them unintentionally. Appropriate protective clothing and disinfecting after each tent would be advisable, which would unnecessarily drive up costs. It’s best to propagate one plant at a time and then properly clean the tent. The pollen is very persistent, and a few grains would be enough to contaminate the genetics in the next run.

Thanks for your reply. A lab would be cool now

That also sounds like a lot of effort that would be worth it if the result is right. Cleaning lamps and especially all ventilation equipment is also relatively a lot of effort.

However, in Ed’s book, the topic is treated quite “roughly” and I think I’ve read here that you also prefer knowledge from books rather than the internet. Could you possibly tell me what other books you have that describe the topic a bit more intensively, especially with feminized seeds?

Regards and have a nice weekend

I only have 2 books, both by Rosenthal, one is Marihuana Growers Handbook and the other is Cannabis Anbau mit LED (Cannabis Cultivation with LED) for the right choice of lamp.

I had informed myself for half a year in advance on the internet and on various breeder websites as well as on YouTube after I had read it in the book, and I wasn’t much wiser afterwards. The best explanation was in the 2 videos I posted here. Long story short, my thought was “what he can do, I can do just as well”. So I got the stuff and just tried it out, on the windowsill and put it in a cardboard box for the dark phase. I don’t need to clean it; it’s simply disposed of and a new one is taken. It then took three weeks and a few attempts, not including the production of the silver water, and then you could also see the desired change.

Next time, I’ll leave the silver diodes in distilled water for 24 hours and start treating during the growth phase before switching to flowering. Then the desired effect should come faster.

Yeah, there’s a lot of nonsense on the internet

But the book makes me want more, and I’ll start a test with Gibberellic acid, let’s see how that works. I’ve also thought of a cardboard box now, that’s a pretty good idea Cuttings are currently rooting, and then I’m excited to see.

But you didn’t test the variant with silver nitrate as powder & sodium thiosulfate, did you? Personally, the method with the rods would be too much effort for me.

No, I didn’t.

was put together in 5 minutes, then waited 24 [hours] and poured into a spray bottle. You can also buy the stuff, however, the parts you need for production are cheaper, and the rods can still be used by your great-grandchildren.

This is one of the home-grown seeds. You can already see the pre-flower at the node below the tip.

Here we go again, this time with a Growlog to track everything. This time I’m propagating a single specimen to replenish the stock. Royal Runtz growlog - Grow with Jane

Here’s a picture of the little one, today day 3 seedling

Here’s a new picture of the little one too

Here are some new pictures from today

Yesterday it was time for repotting

As of today

![20260429_173632|375x

The Colloidal Silver is ready

![20260503_192237|375x500](upload://v

Today, the shoots were spread out a bit and the lighting duration was reduced by one hour so that I can start the flowering phase by the weekend. The upper shoots are treated daily with silver water.

Here’s a new picture of the Royal Runtz

Small Update, the stretch is in full swing and the first pistils are already visible. The male flowers are still awaited.

![20260512_142