Saving seeds from cucumbers

I grew several different types of cucumbers, only one of which was particularly fruitful.
I'm trying to salvage my genetics memory - can I save the seeds from the cucumbers which successfully grew in my allotment? If the original seeds were f1 hybrids does that mean i'm now in the f2 generation and so they won't be successful? My brain hurts.
Also, can I save marrow and bean seeds?
Thanks all.

 

hi beanie
try http://realseeds.co.uk they give you some some good info they sell seeds but if you read right through they tell you how to save your own

 

Many thanks Pam for a great link. It looks like a really interesting company - I'll give them a try at seed-ordering time next year.
Beanie

 

"If the original seeds were f1 hybrids does that mean i'm now in the f2 generation and so they won't be successful"

Yes. Plus if they are an F1 greenhouse / indoor variety they will be sterile, so you won't get anything at all!