How to Save Tomato Seed

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MissS
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How to Save Tomato Seed

#1

Post: # 50730Unread post MissS
Sun Jul 18, 2021 12:27 pm

The seed saving season is upon us. We host some fantastic seed offers and swaps on this site. If you wish to participate quite often you will need seed to exchange. Here is how to do it.
Saving Tomato Seeds.jpg
Saving Tomato Seeds.jpg (53.02 KiB) Viewed 823 times
Many times you will not need to add any water at all. If you do add water, make sure it is a very small amount or it will not work. I allow my seed to ferment for 3-5 days until all of the seeds sink to the bottom and there is a moldy formation on the top of the brew.
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Rockoe10
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Re: How to Save Tomato Seed

#2

Post: # 50743Unread post Rockoe10
Sun Jul 18, 2021 5:00 pm

I'll stress the labeling part. Lable at all stages. It is nerve racking when you shuffle up a few varieties and can't remember which is which.
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JRinPA
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Re: How to Save Tomato Seed

#3

Post: # 53217Unread post JRinPA
Tue Aug 31, 2021 7:46 am

I always wait for the mold. It came last week, but I was busy. Then it got weird stick mold on top a couple days ago. I washed the seeds last night...the weird stick mold was skinny little maggots that were pink from eating the tomato broth.....

Yeah, 5 days is enough. The SECOND cup was marked 8/23 and I believe the first was 3 days older. We had a bunch of little flies in the house from an AC install two weeks back. Never had that happen before, other than fruit flies.
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rdback
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Re: How to Save Tomato Seed

#4

Post: # 53235Unread post rdback
Tue Aug 31, 2021 12:37 pm

I pretty much follow this process, except I use ziplock snack bags. I also stick to the 3 day fermentation rule. Depending on how warm it is, I've found that fermenting anything over 3 days is playing roulette. I've had seeds actually germinate in 3 days, so that's my max. ymmv
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Amateurinawe
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Re: How to Save Tomato Seed

#5

Post: # 53240Unread post Amateurinawe
Tue Aug 31, 2021 1:01 pm

I follow this as well, except i put some cling film stretched over a small plate so when i have washed the seeds and shaken dry i place them on the cling film. They dry quickly and are very easy to separate - glass is good too but find i have to use a thin blade to lift them off.
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JRinPA
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Re: How to Save Tomato Seed

#6

Post: # 53318Unread post JRinPA
Wed Sep 01, 2021 11:57 pm

I have never seen tomato seeds germinate in the cup..and I've forgotten a few. I wonder what causes that? Mine are usually on the NE face window sill in clear plastic cups, uncovered, 70-80 degrees. I've had them turn black when forgotten, but never sprouted any.
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ddsack
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Re: How to Save Tomato Seed

#7

Post: # 53330Unread post ddsack
Thu Sep 02, 2021 9:40 am

I think they germinate in the cup when you seed tomatoes that are on the overripe side. At the end of the season, I figure out which tomatoes I still need to save for, and often have to find fruit which has been abandoned on the vine and is deteriorating. These are the ones that are more likely to sprout in the seed fermentation cup since they likely already are at least partially fermented in the spoiling tomato. Overripe fruit ferments should be checked daily, and a day or two should be enough regardless of fungal mat.

If it's a variety I really need, I may use the Oxiclean method to prevent possible sprouting. Briefly scrub seeds in a sieve to get rid of excess pulp, dump into a cup with enough water to barely cover and stir in some Oxiclean, 1/4 to 1/2 tsp for an inch of water is what I use. Stir a couple of times during a half hour wait, then rinse thoroughly and dry. Timing is not critical, I have forgotten them for hours. I do make note on my seed packet whether they were fermented or Oxi'd in case of future problems. I do not mix batches, in case of a bee cross or bad germination I have others to fall back on.
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Cole_Robbie
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Re: How to Save Tomato Seed

#8

Post: # 53335Unread post Cole_Robbie
Thu Sep 02, 2021 2:56 pm

I use oxy clean, too. I don't think the exact amount matters too much. I use a heaping kitchen teaspoon to about a cup of water and juice. I have forgotten jars and left them overnight and the seeds were fine. I dry my seeds on wax paper, which is easy to write the variety name on.
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MissS
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Re: How to Save Tomato Seed

#9

Post: # 53347Unread post MissS
Thu Sep 02, 2021 8:54 pm

For those not knowing what the Oxy Clean method is, I will explain. Mix 1 teaspoon of Oxy Clean to 1 cup of hot water. Once the water has cooled add your seeds that are all the same variety and allow to sit for 5-10 minutes. Rinse them well in a strainer while pressing with your fingers to be sure that all of the gel from the seed coat has been removed. Then place out on something to dry the seeds on. Paper plates are used frequently. Be sure to label the seeds and do not keep any that have fallen off of the plate so that you don't have a mix-up.
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