Seed viability

[palologrower]

Lately, I have begun to trade seeds (or try to...got rejected once by USDA with some kasturi).  What seeds would you say has very short viability? I'm thinking along the lines of less than a week from harvesting from fruit.

As far as I have heard of was:
Artocarpus? 
Guarana
Abiu

Is this right or am I wrong?  What other seeds in everyone else's experience has a short shelf life.  I only ask b/c I don't want to trade someone for stuff that won't make it.

Thanks in advance.

[stuartdaly88]

If packed really well in a moist mold resistant material then even extremely recalcitrant seeds can last longer than you would expect!

[pitbull-rus]

I think the best substrate for germination and shipment of seeds is wood chips.Especially softwood.I don't know how difficult it is to find it in your country.

[Daintree]

When I get seeds from Africa, they are generally packed in those polymer water crystals.  They tend to sprout en-route, but I just plant them crystals and all.

[Don]

Vermiculite has been best I have found for eugenias. No mould and pretty well 100% germination as long as seeds are of good quality upon sending.

[palologrower]

Vermiculite has been best I have found for eugenias. No mould and pretty well 100% germination as long as seeds are of good quality upon sending.

we shall find out soon, won't we?  the eugenia are still green!

[pitbull-rus]

Many seeds of Marang was dead,packing the vermiculite.Two big package,more than 100 seeds.Alive only one lucky seed.Sphagnum moss small fraction better.

[stuartdaly88]

For me Coco-coir dust has been by far the best medium even had mangosteen last well over a month.

[fruitlovers]

It's not just packing medium that is important. Even more important is cleaning all the pulp off. It's the pulp that attracts the mold. Equally important is fresh seeds, cutting down on travel time, and shipping at time of year when seeds will not be exposed to extreme heat or cold.

[ondrej]

Several times I got the seeds, which were wrapped in some silver flakes. Could anyone advise me what it is?

[stuartdaly88]

Several times I got the seeds, which were wrapped in some silver flakes. Could anyone advise me what it is?

That sounds abit like vermiculite

[Don]

Oh yeah, I hope so Mr palolo!😉