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LONG TERM SEED STORAGE 20+ YEARS
- Thread starter Sam_Skunkman
- Start date
Stayfoolish
Member
Looking through this thread I am realizing I have lifetimes to learn. Humbled in the presence of such great minds. Thanks for your Contributions to the human race.
http://www.wageningenur.nl/en/news-wageningen-ur/Show/Seeds-last-much-longer-without-oxygen.htm
https://www.usaemergencysupply.com/...ygen_absorbers_and_long_term_food_storage.htm
Seems quite simple if one were looking to store large quantities of seeds long term.
https://www.usaemergencysupply.com/...ygen_absorbers_and_long_term_food_storage.htm
Seems quite simple if one were looking to store large quantities of seeds long term.
One last point is I had underestimated the importance of reduced Oxygen levels to help seed storage. I knew seeds had to be dried enough and cold helped a lot, but recent publications confirm that reduced levels of oxygen are the 3rd factor to store seeds longer.
https://www.researchgate.net/public..._storage_The_role_of_oxygen_is_underestimated
https://sci-hub.tw/10.1093/aob/mcs198
https://sci-hub.tw/10.1017/S1479262114000586
-SamS
https://www.researchgate.net/public..._storage_The_role_of_oxygen_is_underestimated
https://sci-hub.tw/10.1093/aob/mcs198
https://sci-hub.tw/10.1017/S1479262114000586
-SamS
troutman
Seed Whore
^^^^ I bet the ultimate would be storing seeds in some inert gas like argon at low temperature after displacing the ambient air.
Just found these articles.
Prolonging the longevity of ex situ conserved seeds by storage under anoxia
Low oxygen seed storage
Just found these articles.
Prolonging the longevity of ex situ conserved seeds by storage under anoxia
Low oxygen seed storage
^^^^ I bet the ultimate would be storing seeds in some inert gas like argon at low temperature after displacing the ambient air.
Just found these articles.
Prolonging the longevity of ex situ conserved seeds by storage under anoxia
Low oxygen seed storage
I posted the first link you posted, the second is an overview of Groot's work I posted his 3 papers on the subject, did you read the papers I posted and the paper you posted?
I do agree that maybe seeds for long storage need to be dried propery, kept cold, and flushed with an inert gas before storage.
-SamS
Sam it says on the Finola page that you must dry to 9%moisture. It says a Gravity/Separator table may be necessary for the removal of some weed seeds and that drying prevents moulds damaging the seeds for storage.. Sounds advice 
My question is;
Have you tried to adapt a Gravity table and put screens in it for Skunk#1 to try make dry sift?
The tables are advertised as being able perform effective separation/sieve on almost any dry product... I'm curious..
My question is;
Have you tried to adapt a Gravity table and put screens in it for Skunk#1 to try make dry sift?
The tables are advertised as being able perform effective separation/sieve on almost any dry product... I'm curious..
No I have never used what you mentioned, I use tradition methods with a method I developed to do the final clean up to 99.9% resin heads.
I dry seeds for a month in brown paper bags in a dry room to be sure the moisture level is under 10%, Then keep them in zip locks at 4 degrees Celsius, if the seeds are made well to full completion they will last for over 25 years. BTW full completion is not 4 weeks after pollination, I keep mine on the living plant for a minimum of 10 weeks, it is not good for the weed quality, but makes seeds that last the longest and are the most viable for long term storage.
The only thing different I would do today is I would flush the zip locks full of seeds with an inert gas as that helps extend their viability lifetime, oxygen and hi-moisture and heat are not good for seed storage. Live and learn.
-SamS
I dry seeds for a month in brown paper bags in a dry room to be sure the moisture level is under 10%, Then keep them in zip locks at 4 degrees Celsius, if the seeds are made well to full completion they will last for over 25 years. BTW full completion is not 4 weeks after pollination, I keep mine on the living plant for a minimum of 10 weeks, it is not good for the weed quality, but makes seeds that last the longest and are the most viable for long term storage.
The only thing different I would do today is I would flush the zip locks full of seeds with an inert gas as that helps extend their viability lifetime, oxygen and hi-moisture and heat are not good for seed storage. Live and learn.
-SamS
Sam it says on the Finola page that you must dry to 9%moisture. It says a Gravity/Separator table may be necessary for the removal of some weed seeds and that drying prevents moulds damaging the seeds for storage.. Sounds advice
My question is;
Have you tried to adapt a Gravity table and put screens in it for Skunk#1 to try make dry sift?
The tables are advertised as being able perform effective separation/sieve on almost any dry product... I'm curious..
TheDarkStorm
Well-known member
I use the glass jars with the metal lids with a button that you press...it creates a negative pressure/vacum in the jar wen done properly....then in the fridge ....no problems with 30 pluss year old seeds no drop in germination, as long as they wer stored correctly before getting to me....in fact I used to find most seeds made from before 2000 were way more vigorous anyways...even wen popped years later compared to stuff around made in the last 20years.
several recent peer-reviewed studies on Cannabis seed storage methods are referenced here
https://archive.org/details/CannabisACompleteGuide2016
what I took away from reading is that low humidity is far and away the most crucial factor
more important even than temperature
I have learned oxygen is maybe as or more important, or at least overlooked. -SamS
https://www.academia.edu/25507089/Ef...annabis_sativa
Preventing seed quality loss during storage. The role of oxygen is underestimated
Steven P.C. Groot
https://www.researchgate.net/publica...underestimated
or use SCI-HUB
DOI: 10.13140/2.1.5013.3447
https://archive.org/details/CannabisACompleteGuide2016
what I took away from reading is that low humidity is far and away the most crucial factor
more important even than temperature
I have learned oxygen is maybe as or more important, or at least overlooked. -SamS
https://www.academia.edu/25507089/Ef...annabis_sativa
Preventing seed quality loss during storage. The role of oxygen is underestimated
Steven P.C. Groot
https://www.researchgate.net/publica...underestimated
or use SCI-HUB
DOI: 10.13140/2.1.5013.3447
Last edited by a moderator:
hi, that's not exactly what I wrote, no
it's not that there are two clear seed types, late and early
it's that wild-type seeds show staggered and uneven germination
the Himalayan types that show this are either wild-type plants (var. himalayensis), aka "jungli"
or they're intermediate domesticates that are quite close to wild plants
the northern Kumaoni landrace we sell as 'Nanda Devi' is like that
but most Kumaoni domesticates have very big seeds and germinate very quickly, like any domesticate
